RFC1759
Network Working Group R. Smith Request for Comments: 1759 Texas Instruments Category: Standards Track F. Wright
Lexmark International
T. Hastings
Xerox Corporation
S. Zilles
Adobe Systems, Inc.
J. Gyllenskog
Hewlett-Packard Company
March 1995
Printer MIB
Status of this Memo
This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.
Introduction
Network Printing Environment
The management of producing a printed document, in any computer environment, is a complex subject. Basically, the task can be divided into two overlapping pieces, the management of printing and the management of the printer. Printing encompasses the entire process of producing a printed document from generation of the file to be printed, selection of a printer, choosing printing properties, routing, queuing, resource management, scheduling, and final printing including notifying the user. Most of the printing process is outside the scope of the model presented here; only the management of the printer is covered.
Figure 1 - One Printer's View of the Network
system printer asset user user user manager operator manager O O O O O O /|\ /|\ /|\ /|\ /|\ /|\ / \ / \ / \ / \ / \ / \ | | | | | |
+---------+ +-------+ +-------+ +-------+ +-----------+ +-----------+ |configur-| |printer| | asset | |printer| | user | | user | |ator | |manager| |manager| |browser| |application| |application| +---------+ +-------+ +-------+ +-------+ +-----------+ +-----------+ ^ ^ ^ ^ | | |R/W |R/W |R |R +-----------+ +-----------+ | | | | | spooler | | spooler | | | | | +-----------+ +-----------+ | | | | | | | | | | +-----------+ +-----------+ | | | | |supervisor | |supervisor | | | | | +-----------+ +-----------+ | | | | ^ ^ ^ ^ | | | | |R |R/W |R |R/W v v | | | | | | ================================================== | ===== |
| print| print|
|SNMP data| data|
+-----+ +-------+ PCL| PCL|
| MIB |<------>| agent | PostScript| PostScript|
+-----+ +-------+ NPAP| NPAP|
|unspecified etc.| etc.|
+=============+ +-----------------+ | |
| |--|channel/interface|<--+ |
| | +-----------------+ |
| PRINTER | |
| | +-----------------+ |
| |--|channel/interface|<----------------+
+=============+ +-----------------+
Printer Device Overview
A printer is the physical device that takes media from an input source, produces marks on that media according to some page description or page control language and puts the result in some output destination, possibly with finishing applied. Printers are complex devices that consume supplies, produce waste and have mechanical problems. In the management of the physical printing device the description, status and alert information concerning the printer and its various subparts has to be made available to the
management application so that it can be reported to the end user, key operators for the replenishment of supplies or the repair or maintenance of the device. The information needed in the management of the physical printer and the management of a printing job overlap highly and many of the tasks in each management area require the same or similar information.
Categories of Printer Information
Information about printers is classified into three basic categories, descriptions, status and alerts.
Descriptions
Descriptions convey information about the configuration and capabilities of the printer and its various sub-units. This information is largely static information and does not generally change during the operation of the system but may change as the printer is repaired, reconfigured or upgraded. The descriptions are one part of the visible state of the printer where state means the condition of being of the printer at any point in time.
Status
Status is the information regarding the current operating state of the printer and its various sub-units. Status is the rest of the visible state of the printer. As an example of the use of status, a management application must be able to determine if the various sub- units are ready to print or are in some state that prevents printing or may prevent printing in the future.
Alerts
An Alert is the representation of a reportable event in the printer. An event is a change in the state of the printer. Some of those state changes are of interest to a management application and are therefore reportable. Typically, these are the events that affect the printer's ability to print. Alerts usually occur asynchronously to the operation of the computer system(s) to which the printer is attached. For convenience below, "alert" will be used for both the event caused by a change in the printer's state and for the representation of that event.
Alerts can be classified into two basic categories, critical and non-critical. A critical alert is one that is triggered by entry into a state in which the printer is stopped and printing can not continue until the condition that caused critical alert is eliminated. "Out of paper", "toner empty" and "output bin full" are
examples of critical alerts. Non-critical alerts are triggered by those events that enter a state in which printing is not stopped. Such a non-critical state may, at some future time, lead to a state in which printing may be stopped. Examples of this kind of non- critical alerts are "input media low", "toner low" and "output bin nearly full". Or, a non-critical alert may simply provide information, such as signaling a configuration changed in the printer.
Description, status and alert information about printer can be thought of as a data base describing the printer. The management application for a printer will want to view the printer data base differently depending on how and for what purposes the information in the data base is needed.
Printer Model
In order to accomplish the management of the printer, an abstract model of the printer is needed to represent the sub-units from which the printer is composed. A printer can be described as consisting of 13 types of sub-units. It is important to note that the sub-units of a printer do not necessarily relate directly to any physically identifiable mechanism. Sub-units can also be a set of definable logical processes, such as interpreters for page description languages or command processors that set various operating modes of the printer.
Figure 2 shows a block diagram of the printer and its basic 13 sub- units.
Figure 2 - Printer Block Diagram
Physical Connections
|
+-----------+
| |
+-------------+ |
| Interface |-+
| (RFC1213) |
+-------------+
|
+-----------+
| |
+-------------+ | +-----------+
| Channel |-+ | Operator |
| | | Console |
+-------------+ +-----------+
|
+-----------+ +---------+
| | | |
+-----------+ +-------------+ | +-----------+ |
| General | | Interpreter |-+ | Alerts |-+
| Printer | | | | |
+-----------+ +-------------+ +-----------+
|
+-------------------------------+
| System Controller |
| (This is the Host MIB) |
+-------------------------------+
+------+ +--------+ +--------+ | | | | | | +-------+ | +-------+ +---------+ | +-------+ +--------+ | | Input |-+ +--------+| | Marker |-+ +--------+| | Output |-+ | |===>| |+<==>| |<==>| |+==>| | +-------+ +--+ +--+ +---------+ +--+ +--+ +--------+ \ | || | || \
\ | || | || \ \ | || | || \ +--------+ | |+-------------------------| || +---------+ | | | +--------------------------+ || | |
+----------+ | | Media Path |+ +----------+ | | Media |-+ +--------------------------------+ | Finisher |-+ |(optional)| |(optional)| +----------+ +----------+
Overview of the Printer Model
The model has three basic parts: (1) the flow of a print file into an interpreter and onto the marker, (2) the flow of media through the marker and (3) the auxiliary sub-units that control and facilitate the two prior flows. The flow of the print data comes through a physical connection on which some form of transport protocol stack is running. The data provided by the transport protocol (interface) appears on a channel which is the input to an interpreter. The interpreter converts the print data into a form suitable for marking on the media.
The media resides in Input sub-units from which the media is selected and then transported via a Media Path first to a Marking sub-unit and then onto an Output sub-unit with (optionally) some finishing operations being performed. The auxiliary sub-units facilitate control of the printer, inquiry/control of the operator panel, reporting of alerts, and the adaptation of the printer to various natural languages and characters sets. All the software sub-units run on the System Controller which represents the processor, memory and storage systems of the Printer. Each of the sub-units is discussed in more detail below.
All of the sub-units other than the Alerts report only state information, either a description or a status. The Alerts sub-unit reports event information.
Printer Sub-Units
A printer is composed of 13 types of sub-units, called groups. The following sections describe the different types of sub-units.
General Printer
The general printer sub-unit is responsible for the overall control and status of the printer. There is exactly one general printer sub- unit in a printer. The general printer sub-unit is represented by the General Printer Group in the model. In addition to the providing the status of the whole printer and allowing the printer to be reset, this Group provides information on the status of the packaging of the printer, in particular, the covers. The general printer sub-unit is usually implemented on the system controller.
The localization portion of the general printer sub-unit is responsible for identifying the natural language, country, and character set in which character strings are expressed. There may be one or more localizations supported per printer. The available localizations are represented by the Localization table.
Localization is only performed on those strings in the MIB that are explicitely marked as being localized. All other character strings are returned in ASCII.
The character set portion of the general printer sub-unit is responsible for identifying the possible character sets that are used by the interpreters, the operator console, and in network management requests for display objects. There may be one or more character sets per printer. The understood character sets are represented by the Character Set Table.
Inputs
Input sub-units are mechanisms that feed media to be marked on into the printer. A printer contains one or more input sub-units. These are represented by the Input Group in the model. The model does not distinguish fixed input bins from removable trays, except to report when a removable tray has been removed.
There are as many input sub-units as there are distinctly selectable input "addresses". For example, if a tray has an option for manually feeding paper as well as automatically feeding from the tray, then this is two input sub-units if these two sources can be (must be) separately selected and is one input sub-unit if putting a sheet in the manual feed slot overrides feeding from the contents of the tray; that is, in the second case there is no way to separately select or address the manual feed slot.
Media
An input sub-unit can hold one or more instances of the media on which marking is to be done. Typically, there is a large set of possible media that can be associated with an input. The Media Group is an extension of the Input Group which represents that media that is in an input sub-unit. The Media Group only describes the current contents of each input and not the possible content of the input sub-unit.
Outputs
Output sub-units are mechanisms that receive media that has been marked on. A printer contains one or more output mechanisms. These are represented by the Output Group in the model. The model does not distinguish fixed output bins from removable output bins, except to report when a removable bin has been removed.
There are as many output sub-units as there are distinctly selectable output "addresses". Output sub-units can be addressed in two
different ways: (1) as a set of "mailboxes" which are addressed by a specific mailbox selector such as a bin number or a bin name, or (2) as a set of "slots" into which multiple copies are collated. Sometimes both modes of using the output sub-units can be used on the same printer. All that is important from the viewpoint of the model is that the output units can be separately selected.
Finishers
A finisher is a sub-unit that performs some operations on the media other than marking. The finisher sub-units are represented by the Finisher Group in the model. Some examples of finishing processes are stapling, punching, binding, inserting, or folding. Finishing processes may have supplies asssociated with the process. Stapling, binding, and punching are examples of processes that have supplies. A printer may have more than one finishing sub-unit and each finishing sub-unit may be associated with one or more output sub-units. Finishers are not described in this MIB.
The exact interaction and sequencing between an output device and its associated finisher is not specified by the model. It depends on the type of finishing process and the exact implementation of the printer system. This standard allows for the logical association of a finishing process with an output device but does not put any restrictions on the exact sequence or interaction with the associated output device. The output and finisher sub-units may or may not be separate identifiable physical mechanisms depending on the exact implementation of a printer. In addition, a single output device may be associated with multiple finishing sub-units and a single finishing sub-unit may be associated with multiple output devices.
Markers
A marker is the mechanism that produces marks on the print media. The marker sub-units and their associated supplies are represented by the Marker Group in the model. A printer can contain one or more marking mechanisms. Some examples of multiple marker sub-units are: a printer with separate markers for normal and magnetic ink or an imagesetter that can output to both a proofing device and final film. Each marking device can have its own set of characteristics associated with it, such as marking technology and resolution.
In this model the marker sub-unit is viewed as very generalized and encompasses all aspects of a marking process. For example, in a xero-graphic process, the marking process as well as the fusing process would be included in the generalized concept of the marker. With the generalized concept of a marking process, the concept of multiple marking supplies associated with a single marking sub-unit
results. For example, in the xerographic process, there is not only a supply of toner, but there can also be other supplies such as a fuser supply that can be consumed and replaced separately. In addition there can be multiple supplies of toner for a single marker device, as in a color process.
Media Paths
The media paths encompass the mechanisms in the printer that move the media through the printer and connect all other media related sub- units: inputs, outputs, markers and finishers. A printer contains one or more media paths. These are represented by the Media Path Group in the model. The Media Path group has some objects that apply to all paths plus a table of the separate media paths.
In general, the design of the media paths determines the maximum speed of the printer as well as the maximum media size that the printer can handle. Media paths are complex mechanisms and can contain many different identifiable sub-mechanisms such as media movement devices, media buffers, duplexing units and interlocks. Not all of the various sub-mechanisms reside on every media path. For example, one media path may provide printing only on one surface of the media (a simplex path) and another media path may have a sub- mechanism that turns the media over and feeds it a second time through the marker sub-unit (a duplex path). The duplex path may even have a buffer sub-mechanism that allows multiple copies of the obverse side to be held before the reverse side of all the copies are marked.
System Controller
The System Controller is the sub-unit upon which the software components of the Printer run. The System Controller is represented in the model by the Host MIB. This MIB allows for the specification of the processor(s), memory, disk storage, file system and other underlying sub-mechanisms of the printer. The controller can range from simple single processor systems to multiprocessor systems. In addition, controllers can have a full range of resources such as hard disks. The printer is modeled to have one system controller even though it may have more than one processor and multiple other resources associated with it.
Interfaces
An interface is the communications port and associated protocols that are responsible for the transport of data to the printer. A printer has one or more interface sub-units. The interfaces are represented by the Interfaces Group of MIB-II (RFC 1213). Some examples of
interfaces are serial ports (with little or no protocol) and EtherNet ports on which one might run InterNet IP, Novell IPX, etc.
2.2.10. Channels
The channel sub-units identify the independent sources of print data (here print data is the information that is used to construct printed pages and may have both data and control aspects). A printer may have one or more channels. The channel sub-units are represented by the Channel Group in the Model. Each channel is typically identified by the electronic path and service protocol used to deliver print data to the printer. A channel sub-unit may be independently enabled (allowing print data to flow) or disabled (stopping the flow of print data). It has a current Control Language which can be used to specify which interpreter is to be used for the print data and to query and change environment variables used by the interpreters (and SNMP). There is also a default interpreter that is to be used if an interpreter is not explicitly specified using the Control Language. Channel sub-units are based on an underlying interface.
2.2.11. Interpreters
The interpreter sub-units are responsible for the conversion of a description of intended print instances into images that are to be marked on the media. A printer may have one or more interpreters. The interpreter sub-units are represented by the Interpreter Group in the Model. Each interpreter is generally implemented with software running on the System Controller sub-unit. The Interpreter Table has one entry per interpreter where the interpreters include both Page Description Language (PDL) Interpreters and Control Language Interpreters.
2.2.12. Console
Many printers have a console on the printer, the operator console, that is used to display and modify the state of the printer. The console can be as simple as a few indicators and switches or as complicated as full screen displays and keyboards. There can be at most one such console. This console sub-unit is represented by the Console Group in the model. Although most of the information displayed there is also available in the state of the printer as represented by the various Groups, it is useful to be able to query and modify the operator console remotely. For example, a management application might like to display to its user the current message on the operator console of the remote printer or the management application user might like to modify the current message on the operators console of the remote printer. As another example, one might have a remote application that puts up a pseudo console on a
workstation screen. Since the rules by which the printer state is mapped onto the console and vice versa are not standardized, it is not possible to reproduce the console state or the action of console buttons and menus. Therefore, the Console Group provides access to the console. The operator console is usually implemented on the system controller with additional hardware for input and display.
2.2.13. Alerts
The alert sub-unit is responsible for detecting reportable events, making an entry in the alert table and, if and only if the event is a critical event, initiating a trap. The alert sub-unit is represented by the Alerts Group and, in particular, the Alert Table. This table contains information on the severity, sub-unit, detailed location within the sub-unit, alert code and description of each critical alert that is currently active within the printer. Each reportable event causes an entry to be made in the Alert Table.
2.2.13.1. Status and Alerts
Summary information about the state of the printer is reported at three separate levels: (1) there is the status of the printer as a whole reported in the Host MIB, (2) there is the status of various sub-units reported in the principle table of the Group that represents the sub-unit, and (3) there are alert codes reported in the Alert Table.
2.2.13.2. Overall Printer Status
Of the many states a printer can be in, certain states are more "interesting" because of the distinct actions they are likely to provoke in the administrator. These states may be applied to the printer as a whole, or to a particular sub-unit of the printer. These named states are:
Non Critical Alert Active - For the printer this means that one or more sub-units have a non-critical alert active. For a sub-unit, this means that the sub-unit has a non-critical alert active.
Critical Alert Active - For the printer this means that one or more sub-units have a critical alert active. For a sub-unit, this means that the sub-unit has a critical alert active.
Unavailable - The printer or sub-unit is unavailable for use (this is the same as "broken" or "down" in other terminologies). A trained service person is typically necessary to make it available.
Busy / Temporarily Unavailable - The printer or sub-unit is operational but currently occupied with a request for activity. The sub-unit will become available without the need of human interaction.
Moving on-line or off-line - The printer is either off-line, in the process of moving off-line or in the process of moving back on-line; for example on high end printers reloading paper involves a transition to off-line to open the paper bin, it is then filled and, finally, there is a transition back to on-line as the paper bin is repositioned for printing.
Standby - The printer or sub-unit is unavailable for use because it is partially powered down and may need some period of time to become fully operational again. A unit in Standby state shall respond to network management requests.
The Host MIB provides three status objects that can be used to describe the status of a printer: (1) hrDeviceStatus in the entry in the Host MIB hrDeviceTable; (2) hrPrinterStatus in the hrPrinterTable; and (3) hrPrinterDetectedErrorState in the hrPrinterTable. These objects describe many of the states that a printer can be in. The following table shows how the "interesting" states named above can be recognized by inspecting the values of the three printer-related objects in the Host MIB:
Printer hrDeviceStatus hrPrinterStatus hrPrinterDetectedErrorState Status
Normal running(2) idle(3) none set
Busy/ running(2) printing(4) Temporarily Unavailable
Non Critical warning(3) idle(3) or could be: lowPaper, Alert Active printing(4) lowToner, or
serviceRequested
Critical down(5) other(1) could be: jammed, Alert Active noPaper, noToner,
coverOpen, or
serviceRequested
Unavailable down(5) other(1)
Moving off- warning(3) idle(3) or offline line printing(4)
Off-line down(5) other(1) offline
Moving down(5) warmup(5) on-line
Standby running(2) other(1)
These named states are only a subset of the possible states - they are not an exhaustive list of the possible states. Nevertheless, several things should be noted. When using these states, it is not possible to detect when both critical and non-critical alerts are pending - if both are pending, the Critical Alert Active state will prevail. In addition, a printer in the Standby state will be represented in the Host MIB with a device status of running(2) and a printer status of other(1), a set of states that don't uniquely distinguish this important printer state.
Although the above mapping is workable, it would be improved with a few additions to hrDeviceStatus and hrPrinterStatus in the Host Resources MIB. In particular, it would be appropriate to add a "standby" enumeration to hrDeviceStatus. Similarly, it would be useful to add the following states to hrPrinterStatus: "offline" to indicate that reason for the printer being down (instead of having to use "other") which allows both "warning" and "offline" to indicate going offline and "down" and "offline" to indicate offline and "notApplicable" to cover cases, such as "standby", where the device state completely describes the state of the device.
Detailed status per sub-unit is reported in the sub-unit status fields.
2.2.13.2.1. Host MIB Printer Status
For completeness, the definitions of the Printer Status objects of the Host MIB are given below:
hrDeviceStatus OBJECT-TYPE
SYNTAX INTEGER {
unknown(1),
running(2),
warning(3),
testing(4),
down(5)
}
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The current operational state of the device
described by this row of the table. A value
unknown(1) indicates that the current state of the
device is unknown. running(2) indicates that the
device is up and running and that no unusual error
conditions are known. The warning(3) state
indicates that agent has been informed of an
unusual error condition by the operational software
(e.g., a disk device driver) but that the device is
still 'operational'. An example would be high
number of soft errors on a disk. A value of
testing(4), indicates that the device is not
available for use because it is in the testing
state. The state of down(5) is used only when the
agent has been informed that the device is not
available for any use."
::= { hrDeviceEntry 5 }
hrPrinterStatus OBJECT-TYPE
SYNTAX INTEGER {
other(1),
unknown(2),
idle(3),
printing(4),
warmup(5)
}
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The current status of this printer device. When
in the idle(1), printing(2), or warmup(3) state,
the corresponding hrDeviceStatus should be
running(2) or warning(3). When in the unknown
state, the corresponding hrDeviceStatus should be
unknown(1)."
::= { hrPrinterEntry 1 }
hrPrinterDetectedErrorState OBJECT-TYPE
SYNTAX OCTET STRING
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This object represents any error conditions
detected by the printer. The error conditions are
encoded as bits in an octet string, with the
following definitions:
Condition Bit # hrDeviceStatus
lowPaper 0 warning(3)
noPaper 1 down(5)
lowToner 2 warning(3)
noToner 3 down(5)
doorOpen 4 down(5)
jammed 5 down(5)
offline 6 down(5)
serviceRequested 7 warning(3)
If multiple conditions are currently detected and
the hrDeviceStatus would not otherwise be
unknown(1) or testing(4), the hrDeviceStatus shall
correspond to the worst state of those indicated,
where down(5) is worse than warning(3) which is
worse than running(2).
Bits are numbered starting with the most
significant bit of the first byte being bit 0, the
least significant bit of the first byte being bit
7, the most significant bit of the second byte
being bit 8, and so on. A one bit encodes that
the condition was detected, while a zero bit
encodes that the condition was not detected.
This object is useful for alerting an operator to
specific warning or error conditions that may
occur, especially those requiring human
intervention."
::= { hrPrinterEntry 2 }
2.2.13.2.2. Sub-unit Status
Sub-unit status is reported in the entries of the principle table in the Group that represents the sub-unit. For sub-units that report a status, there is a status column in the table and the value of this column is always an integer formed in the following way.
The SubUnitStatus is an integer that is the sum of 5 distinct values, Availability, Non-Critical, Critical, On-line, and Transitioning. These values are:
Availability value
Available and Idle 0 000'b
Available and Standby 2 010'b
Available and Active 4 100'b
Available and Busy 6 110'b
Unavailable and OnRequest 1 001'b
Unavailable because Broken 3 011'b
Unknown 5 101'b
Non-Critical
No Non-Critical Alerts 0
Non-Critical Alerts 8
Critical
No Critical Alerts 0
Critical Alerts 16
On-Line
Intended state is On-Line 0
Intended state is Off-Line 32
Transitioning
At intended state 0
Transitioning to intended state 64
For example, an input (tray) that jammed on the next to the last page may show a status of 27 (unavailable because broken (3) + a critical state (16), jammed, and a noncritical state (8), low paper).
2.2.13.3. Alert Tables
The Alert Group consists of a single table in which all active alerts are represented. This section provides and overview of the table and a description of how it is managed. The basic content of the alert table is the severity (critical or non-critical) of the alert, the Group and entry where a state change caused the alert, additional information about the alert (a more detailed location, an alert code, and a description), and an indication of the level of training needed to service the alert.
The Alert Table contains some information that is redundant, for example that an event has occurred, and some information that is only represented in the Alert Table, for example the additional information. A single table was used because a single entry in a Group could cause more than one alert, for example paper jams in more than one place in a media path. Associating the additional information with the entry in the affected group would only allow one report where associating the additional information with the alert makes multiple reports possible.
Every time an alert occurs in the printer, the printer makes one or more entries into the Alert Table. The printer determines if an event is to be classified as critical or non-critical. If the severity of the Alert is "critical", the printer sends a trap or event notification to the host indicating that the table has changed. Whether or not a trap is sent, the management application is expected to poll the printer on a regular basis and to read and parse the table to determine what conditions have changed, in order to provide reliable information to the management application user.
2.2.13.4. Alert Table Management
The alert tables are sparsely populated tables. This means the tables will only contain entries of the alerts that are currently active and the number of rows, or entries in the table will be dynamic. More than one event can be added or removed from the event tables at a time depending on the implementation of the printer.
There are basically two kinds of events that produce alerts: binary change events and simple change events. Binary change events come in pairs: the leading edge event and the trailing edge event. The leading edge event enters a state from which there is only one exit; for example, going from running to stopped with a paper jam. The only exit from this state is fixing the paper jam and it is clear when that is accomplished. The trailing edge event is the event which exits the state the was entered by the leading edge event; in the example above fixing the paper jam is the trailing edge event.
It is relatively straightforward to manage binary change events in the Alert Table. Only the leading edge event makes an entry in the alert table. This entry persists in the Alert Table until the trailing edge event occurs at which point this event is signal by the removal of the leading edge event entry in the Alert Table. That is, a trailing edge event does not create an entry; it removes the corresponding leading edge event. With binary events it is possible to compute the maximum number that can occur at the same time and construct an Alert Table that would hold that many events. There would be no possibility of table overflow and no information about outstanding events would be lost.
Unfortunately, there are some events that are not binary changes. This other category of event, the simple change event, is illustrated by the configuration change event. With this kind of event the state of the machine has changed, but to a state which is (often) just as valid as the state that was left and from which no return is necessary. For example, an operator may change the paper that is in the primary input source from letter to legal. At some time in the future the paper may be changed back to letter, but it
might be changed to executive instead. This is where the problem occurs. It is not obvious how long to keep simple change event entries in the Alert Table. It they were never removed, the Alert Table would continue to grow indefinitely.
The agent needs to have an algorithm implemented for the management of the alert table, especially in the face of combinations of binary and simple alerts that would overflow the storage capaciity of the table. When the table is full and a new alert needs to be added, an old alert needs to be deleted. The alert to be deleted should be chosen using the following rules:
1. Find a non-critical simple alert and delete it. If there are multiple non-critical simple alerts, it is suggested that the oldest one be chosen. If there are no non-critical simple alerts, then,
2. Find a non-critical binary alert and delete it. If there are multiple non-critical binary alerts, it is suggested that the oldest one be chosen. If there are no non-critical binary alerts, then,
3. Find a critical (binary) alert and delete it. If there are multiple critical alerts, it is suggested that the oldest one be chosen. Agent implementors are encouraged to provide at least enough storage space for the maximum number of critical alerts that could occur simultaneously. Note that all critical alerts are binary.
Note that because the Alert Index is a monotonically increasing integer there will be gaps in the values in the table when an alert is deleted. Such gaps can be detected by the management application to indicate that the management application may want to re-acquire the Printer state and check for state changes it did not observe in the Alert Table.
Read-Write Objects
Some of the objects in the printer MIB report on the existence of or amount of a given resource used with the printer. Some examples of such resources are the size and number of sheets of paper in a paper tray or the existence of certain output options. On some printers there are sensors that allow these resources to be sensed. Other printers, however, lack sensors that can detect (all of) the properties of the resource. Because the printer needs to know of the existence or properties of these resources for the printer to function properly some other way of providing this information is needed. The chosen way to solve this problem is to allow a
management application to write into objects which hold the descriptive or existence values for printers that cannot sense the values. Thus many of the objects in the MIB are given read-write access, but a printer implementation might only permit a management operation to change the value if the printer could not sense the value itself. Therefore, the ability to change the value of a read- write object may depend on the implementation of the agent. Note that even though some objects explicitely state the behaviour of conditional ability to change values, any read-write object may act that way.
Generally, an object is given read-write access in the Printer MIB specification if:
1.The object involves installation of a resource that some printers cannot themselves detect. Therefore, external means are needed to inform the printer of the installation. (Here external means include using the operator console, or remote management application) and
2.The printer will behave differently if the installation of the resource is reported than the printer would if the installation were not reported; that is, the object is not to be used as a place to put information not used by the printer, i.e., not a "PostIt". Another way of saying this is that the printer believes that information given it and acts as if the information were true. For example, on a printer that cannot sense the size, if one paper size is loaded, but another size is set into the paper size object, then the printer will use the size that was set as its current paper size in its imaging and paper handling.
The printer may get hints that it may not know about the existence or properties of certain resources. For example, a paper tray may be removed and re-inserted. When this removal and insertion happens, the printer may either assume that a property, such as the size of paper in the tray, has not changed or the printer may change the value of the associated object to "unknown", as might be done for the amount of paper in the tray. As long as the printer acts according to the value in the object either strategy is acceptable.
It is an implementation-specific matter as to whether or not MIB object values are persistent across power cycles or cold starts. It is particularly important that the values of the prtMarkerLifeCount object persist throughout the lifetime of the printer. Therefore, if the value of any MIB object persists across power cycles, then the prtMarkerLifeCount object must also persist.
Enumerations
Enumerations (enums) are sets of symbolic values defined for use with one or more objects. Some common enumeration sets are assigned a symbolic data type name (textual convention). These enumerations are listed at the beginning of this specification.
Registering Additional Enumerated Values
This working group has defined several type of enumerations. These enumerations differ in the method employed to control the addition of new enumerations. Throughout this document, references to "enumeration (n)", where n can be 1, 2 or 3 can be found in the various tables. The definitions of these types of enumerations are:
enumeration (1) All the values are defined in the Printer MIB specification (RFC for the Printer MIB). Additional enumerated values require a new RFC.
enumeration (2) An initial set of values are defined in the Printer MIB specification. Additional enumerated values are registered after review by this working group. The initial versions of the MIB will contain the values registered so far. After the MIB is approved, additional values will be registered through IANA after approval by this working group.
enumeration (3) An initial set of values are defined in the Printer MIB specification. Additional enumerated values are registered without working group review. The initial versions of the MIB will contain the values registered so far. After the MIB is approved, additional values will be registered through IANA without approval by this working group.
Objects from other MIB Specifications
This section lists the objects from other IETF MIB specifications that are mandatory for conformance to this Printer MIB specification.
System Group objects
All objects in the system group of MIB-II (RFC 1213) must be implemented.
System Controller
The System Controller is represented by the Storage and Device Groups of the Host Resources MIB (RFC 1514). These are the only groups that are required to be implemented. Other Groups (System, Running Software, Running Software Performance, and Installed Software) may be implemented at the discretion of the implementor.
Interface Group objects
All objects in the Interfaces Group of MIB-II (RFC 1213) shall be implemented.
Printer-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, experimental, Counter32, Integer32,
TimeTicks, NOTIFICATION-TYPE, OBJECT-IDENTITY FROM SNMPv2-SMI
TEXTUAL-CONVENTION FROM SNMPv2-TC
MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF
hrDeviceIndex, hrStorageIndex FROM HOST-RESOURCES-MIB;
printmib MODULE-IDENTITY
LAST-UPDATED "9411250000Z"
ORGANIZATION "IETF Printer MIB Working Group"
CONTACT-INFO
" Steven Waldbusser
Postal: Carnegie Mellon University
4910 Forbes Ave
Pittsburgh, PA, 15213
Tel: 412-268-6628
Fax: 412-268-4987
E-mail: [email protected]"
DESCRIPTION
"The MIB module for management of printers."
::= { mib-2 43 }
-- Textual conventions for this MIB module
MediaUnit ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Units of measure for media dimensions."
-- This is a type 1 enumeration.
SYNTAX INTEGER {
tenThousandthsOfInches(3), -- .0001
micrometers(4)
}
CapacityUnit ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Units of measure for media capacity."
-- This is a type 1 enumeration.
SYNTAX INTEGER {
tenThousandthsOfInches(3), -- .0001
micrometers(4),
sheets(8),
feet(16),
meters(17)
}
SubUnitStatus ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Status of a printer sub-unit.
The SubUnitStatus is an integer that is the sum of 5
distinct values, Availability, Non-Critical, Critical,
On-line, and Transitioning. These values are:
Availability value
Available and Idle 0 000'b
Available and Standby 2 010'b
Available and Active 4 100'b
Available and Busy 6 110'b
Unavailable and OnRequest 1 001'b
Unavailable because Broken 3 011'b
Unknown 5 101'b
Non-Critical
No Non-Critical Alerts 0
Non-Critical Alerts 8
Critical
No Critical Alerts 0
Critical Alerts 16
On-Line
Intended state is On-Line 0
Intended state is Off-Line 32
Transitioning
At intended state 0
Transitioning to intended state 64
"
SYNTAX INTEGER (0..126)
PresentOnOff ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Presence and configuration of a device or feature."
-- This is a type 1 enumeration.
SYNTAX INTEGER {
other(1),
on(3),
off(4),
notPresent(5)
}
CodedCharSet ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A coded character set value that specifies both a set of
characters that may be used and an encoding (as one or more
octets) that is used to represent the characters in the
set. These values are to be used to identify the encoding
employed for strings in the MIB where this is not fixed by
the MIB.
Some objects that allow a choice of coded character set
are: the prtLocalizationCharacterSet object in the
LocalizationTable and prtInterpreterDefaultCharSetIn.
The prtGeneralCurrentLocalization and prtConsoleLocalization
objects in turn contain the index in the LocalizationTable
of the current localization (country, language, and coded
character set) of the `description' objects and the console,
respectively.
The space of the coded character set enumeration has been
divide into three regions. The first region (3-999) consists
of coded character sets that have been standardized by some
standard setting organization. This region is intended for
standards that do not have subset implementations. The
second region (1000-1999) is for the Unicode and ISO/IEC 10646
coded character sets together with a specification of a (set
of) sub-repetoires that may occur. The third region (>1999)
is intended for vendor specific coded character sets.
NOTE: Unicode and ISO 10646 character coded data may be
processed and stored in either Big Endian (most significant
octet first) or Little Endian (least significant octet
first) order. Intel x86, VAX, and Alpha/AXP architectures are
examples of Little Endian processor architectures.
Furthermore, in environments where either order may occur,
so-called Unicode BYTE ORDER MARK (BOM) character (which is
ISO 10646 ZERO WIDTH NO BREAK SPACE), coded as FEFF in two
octets and 0000FEFF in four octets is used at the beginning
of the data as a signature to indicate the order of the
following data (See ISO 10646 Annex F). Thus either
ordering and BOM may occur in print data streams sent to the
interpreter. However, ISO 8824/8825 (ASN.1/BER) used by
SNMP is quite clear that Big Endian order shall be used and
BOM shall NOT be used in transmission in the protocol.
Transmitting Unicode in Big Endian order in SNMP should
not prove to be a hardship for Little Endian machines,
since SNMP ASN.1/BER requires integers to be transmitted
in Big Endian order as well. So SNMP implementations on
Little Endian machines are already reversing the order of
integers to make them Big Endian for transmission via
SNMP. Also Unicode characters are usually treated as
two-octet integers, not short text strings, so that it will
be straightforward for Little Endian machines to reverse the
order of Unicode character octets as well before
transmitting them and after receiving them via the SNMP
protocol.
Where a given coded character set may be known by more than
one name, the most commonly known name is used as the name
of the enumeration and other names are shown in the
comments. The comments also indicate where to find detailed
information on the coded character set and briefly
characterize its relationship to other similar coded
character sets.
The current list of character sets and their enumerated
values used to reference them is contained in the IANA
Character Set registry. The enum value is indicated by
the MIBenum entry in the registry. The enum symbol is
indicated by the Alias that starts with `cs' for character
set.
The IANA character sets registry is available via
anonymous ftp.
The ftp server is ftp.isi.edu.
The subdirectory is /in-notes/iana/assignments/.
The file name is character-sets.
To add a character set to the IANA Registry:
1. Format an entry like those in the current list,
omitting the MIBenum value.
2. Send the entry with a request to add the entry
to the character set list to [email protected].
3. The IANA will supply a unique MIBenum value
and update the list."
-- This is a type 3 enumeration.
SYNTAX INTEGER {
other(1) -- used if the designated coded
-- character set is not currently in
-- the enumeration
-- See IANA Registry for standard character sets in the -- MIBenum range of 3-999.
-- See IANA Registry for Unicode and vendor-supplied -- combinations of ISO collections and character sets based -- on Unicode in the MIBenum range of 1000-1999. -- See IANA Registry for vendor developed character sets -- in the MIBenum range of 2000-xxxx.
}
-- The General Printer Group -- -- The general printer sub-unit is responsible for the overall control -- and status of the printer. There is exactly one general printer -- sub-unit in a printer. -- -- Implementation of every object in this group is mandatory.
prtGeneral OBJECT IDENTIFIER ::= { printmib 5 }
prtGeneralTable OBJECT-TYPE
SYNTAX SEQUENCE OF PrtGeneralEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of general information per printer.
Objects in this table are defined in various
places in the MIB, nearby the groups to
which they apply. They are all defined
here to minimize the number of tables that would
otherwise need to exist."
::= { prtGeneral 1 }
prtGeneralEntry OBJECT-TYPE
SYNTAX PrtGeneralEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry exists in this table for each
device entry in the hostmib device table who's type
is `printer'"
INDEX { hrDeviceIndex }
::= { prtGeneralTable 1 }
PrtGeneralEntry ::= SEQUENCE {
-- Note that not all of the objects in this sequence are in the -- general printer group. prtGeneralConfigChanges Counter32, prtGeneralCurrentLocalization Integer32, prtGeneralReset INTEGER, prtGeneralCurrentOperator OCTET STRING, prtGeneralServicePerson OCTET STRING, prtInputDefaultIndex Integer32, prtOutputDefaultIndex Integer32, prtMarkerDefaultIndex Integer32, prtMediaPathDefaultIndex Integer32, prtConsoleLocalization Integer32, prtConsoleNumberOfDisplayLines Integer32, prtConsoleNumberOfDisplayChars Integer32, prtConsoleDisable INTEGER
}
prtGeneralConfigChanges OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Counts configuration changes that change the capabilities of
a printer, such as the addition/deletion of input/output bins,
the addition/deletion of interpreters, or changes in media
size. Such changes will often affect the capability of the
printer to service certain types of print jobs.
Management applications may cache infrequently changed
configuration information about sub-units on the printer.
This object should be incremented whenever the agent wishes
such applications to invalidate that cache and re-download
all of this configuration information, thereby signalling a
change in the printer's configuration.
For example, if an input tray that contained paper of
different dimensions was added, this counter would be
incremented.
As an additional example, this counter would not be
incremented when an input tray is removed or the level of an
input device changes."
::= { prtGeneralEntry 1 }
prtGeneralCurrentLocalization OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The value of the prtLocalizationIndex corresponding to the
current language, country, and character set to be used for
localized string values that are identified as being dependent
on the value of this object. Note that this object does not
apply to localized strings in the prtConsole group or any
object that is not identified as above."
::= { prtGeneralEntry 2 }
prtGeneralReset OBJECT-TYPE
-- This value is a type 3 enumeration
SYNTAX INTEGER {
notResetting(3),
powerCycleReset(4), -- Cold Start
resetToNVRAM(5), -- Warm Start
resetToFactoryDefaults(6) -- Reset contents of
-- NVRAM to factory defaults
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Setting this value to `powerCycleReset', `resetToNVRAM', or
`resetToFactoryDefaults' will result in the resetting of the
printer. When read, this object will always have the value
`notResetting(3)', and a SET of the value `notResetting' shall
have no effect on the printer. Some of the defined values are
optional. However, every implementation must support at least
the values `notResetting' and resetToNVRAM'."
::= { prtGeneralEntry 3 }
-- The Cover Table -- -- The cover portion of the General print sub-unit describes the -- covers and interlocks of the printer. The Cover Table has an -- entry for each cover and interlock.
prtCover OBJECT IDENTIFIER ::= { printmib 6 }
prtCoverTable OBJECT-TYPE
SYNTAX SEQUENCE OF PrtCoverEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of the covers and interlocks of the printer."
::= { prtCover 1 }
prtCoverEntry OBJECT-TYPE
SYNTAX PrtCoverEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Information about a cover or interlock.
Entries may exist in the table for each device
index whose device type is `printer'."
INDEX { hrDeviceIndex, prtCoverIndex }
::= { prtCoverTable 1 }
PrtCoverEntry ::= SEQUENCE {
prtCoverIndex Integer32, prtCoverDescription OCTET STRING, prtCoverStatus INTEGER
}
prtCoverIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A unique value used by the printer to identify this Cover
sub-unit. Although these values may change due to a major
reconfiguration of the device (e.g. the addition of new
cover sub-units to the printer), values are expected to
remain stable across successive printer power cycles."
::= { prtCoverEntry 1 }
prtCoverDescription OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..255)) MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The manufacturer provided cover sub-mechanism name in the
localization specified by prtGeneralCurrentLocalization."
::= { prtCoverEntry 2 }
prtCoverStatus OBJECT-TYPE
-- This value is a type 2 enumeration
SYNTAX INTEGER {
other(1),
doorOpen(3),
doorClosed(4),
interlockOpen(5),
interlockClosed(6)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The status of this cover sub-unit."
::= { prtCoverEntry 3 }
-- The Localization Table --
-- The localization portion of the General printer sub-unit is
-- responsible for identifying the natural language, country, and -- character set in which character strings are expressed. There -- may be one or more localizations supported per printer. The -- available localizations are represented by the Localization table.
prtLocalization OBJECT IDENTIFIER ::= { printmib 7 }
prtLocalizationTable OBJECT-TYPE
SYNTAX SEQUENCE OF PrtLocalizationEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The available localizations in this printer."
::= { prtLocalization 1 }
prtLocalizationEntry OBJECT-TYPE
SYNTAX PrtLocalizationEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A description of a localization.
Entries may exist in the table for each device
index who's device type is `printer'."
INDEX { hrDeviceIndex, prtLocalizationIndex }
::= { prtLocalizationTable 1 }
PrtLocalizationEntry ::= SEQUENCE {
prtLocalizationIndex Integer32,
prtLocalizationLanguage OCTET STRING,
prtLocalizationCountry OCTET STRING,
prtLocalizationCharacterSet CodedCharSet
}
prtLocalizationIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A unique value used by the printer to identify this
localization entry. Although these values may change due to a
major reconfiguration of the device (e.g., the addition of new
Cover sub-units to the printer), values are expected to remain
stable across successive printer power cycles."
::= { prtLocalizationEntry 1 }
prtLocalizationLanguage OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..2))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A two character language code from ISO 639. Examples EN, GB,
CA, FR, DE."
::= { prtLocalizationEntry 2 }
prtLocalizationCountry OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..2))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A two character country code from ISO 3166, a blank string
(two space characters) shall indicate that the country is
not defined. Examples: US, FR, DE, ..."
::= { prtLocalizationEntry 3 }
prtLocalizationCharacterSet OBJECT-TYPE
SYNTAX CodedCharSet MAX-ACCESS read-only STATUS current DESCRIPTION
"The coded character set used for this localization."
::= { prtLocalizationEntry 4 }
-- The System Resources Tables
-- The Printer MIB makes use of the Host MIB to -- define system resources by referencing the storage -- and device groups of the print group. In order to -- determine, amongst multiple printers serviced by -- one agent, which printer owns a particular -- resource, the prtStorageRef and prtDeviceRef tables -- associate particular storage and device entries to -- printers.
prtStorageRefTable OBJECT-TYPE
SYNTAX SEQUENCE OF PrtStorageRefEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
::= { prtGeneral 2 }
prtStorageRefEntry OBJECT-TYPE
SYNTAX PrtStorageRefEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table will have an entry for each entry in
the host MIB storage table that represents storage associated
with a printer managed by this agent."
INDEX { hrStorageIndex, prtStorageRefSeqNumber }
::= { prtStorageRefTable 1 }
PrtStorageRefEntry ::= SEQUENCE {
prtStorageRefSeqNumber Integer32, prtStorageRefIndex Integer32
}
prtStorageRefSeqNumber OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This value will be unique amongst all entries with a common
value of hrStorageIndex.
This object allows a storage entry to point to the multiple
printer devices with which it is associated."
::= { prtStorageRefEntry 1 }
prtStorageRefIndex OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of the hrDeviceIndex of the printer device that this
storageEntry is associated with."
::= { prtStorageRefEntry 2 }
prtDeviceRefTable OBJECT-TYPE
SYNTAX SEQUENCE OF PrtDeviceRefEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
::= { prtGeneral 3 }
prtDeviceRefEntry OBJECT-TYPE
SYNTAX PrtDeviceRefEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table will have an entry for each entry in
the host MIB device table that represents a device associated
with a printer managed by this agent."
INDEX { hrDeviceIndex, prtDeviceRefSeqNumber }
::= { prtDeviceRefTable 1 }
PrtDeviceRefEntry ::= SEQUENCE {
prtDeviceRefSeqNumber Integer32, prtDeviceRefIndex Integer32
}
prtDeviceRefSeqNumber OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This value will be unique amongst all entries with a common
value of hrDeviceIndex.
This object allows a device entry to point to the multiple
printer devices with which it is associated."
::= { prtDeviceRefEntry 1 }
prtDeviceRefIndex OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of the hrDeviceIndex of the printer device that this
deviceEntry is associated with."
::= { prtDeviceRefEntry 2 }
-- The Responsible Party group -- -- This group is optional. However, to claim conformance to this -- group, it is necessary to implement every object in the group.
prtGeneralCurrentOperator OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..127))
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The name of the current human operator responsible for
operating this printer. It is suggested that this string
include information that would enable other humans to reach
the operator, such as a phone number."
::= { prtGeneralEntry 4 }
prtGeneralServicePerson OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..127))
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The name of the last human responsible for servicing
this printer. It is suggested that this string
include information that would enable other humans to reach
the service person, such as a phone number."
::= { prtGeneralEntry 5 }
-- The Input Group -- -- Input sub-units are managed as a tabular, indexed collection of -- possible devices capable of providing media for input to the printing -- process. Input sub-units typically have a location, a type, an -- identifier, a set of constraints on possible media sizes and -- potentially other media characteristics, and may be capable of -- indicating current status or capacity. -- -- Implementation of every object in this group is mandatory.
prtInput OBJECT IDENTIFIER ::= { printmib 8 }
prtInputDefaultIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The value of prtInputIndex corresponding to the default input
sub-unit: that is, this object selects the default source of
input media."
::= { prtGeneralEntry 6 }
prtInputTable OBJECT-TYPE
SYNTAX SEQUENCE OF PrtInputEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of the devices capable of providing media for input
to the printing process."
::= { prtInput 2 }
prtInputEntry OBJECT-TYPE
SYNTAX PrtInputEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Attributes of a device capable of providing media for input
to the printing process.
Entries may exist in the table for each device
index who's device type is `printer'."
INDEX { hrDeviceIndex, prtInputIndex }
::= { prtInputTable 1 }
PrtInputEntry ::= SEQUENCE {
prtInputIndex Integer32,
prtInputType INTEGER,
prtInputDimUnit MediaUnit,
prtInputMediaDimFeedDirDeclared Integer32,
prtInputMediaDimXFeedDirDeclared Integer32,
prtInputMediaDimFeedDirChosen Integer32,
prtInputMediaDimXFeedDirChosen Integer32,
prtInputCapacityUnit CapacityUnit,
prtInputMaxCapacity Integer32,
prtInputCurrentLevel Integer32,
prtInputStatus SubUnitStatus,
prtInputMediaName OCTET STRING,
prtInputName OCTET STRING,
prtInputVendorName OCTET STRING,
prtInputModel OCTET STRING,
prtInputVersion OCTET STRING,
prtInputSerialNumber OCTET STRING,
prtInputDescription OCTET STRING,
prtInputSecurity PresentOnOff,
prtInputMediaWeight Integer32,
prtInputMediaType OCTET STRING,
prtInputMediaColor OCTET STRING,
prtInputMediaFormParts Integer32
}
prtInputIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A unique value used by the printer to identify this input
sub-unit. Although these values may change due to a major
reconfiguration of the device (e.g. the addition of new
input sub-units to the printer), values are expected to
remain stable across successive printer power cycles."
::= { prtInputEntry 1 }
prtInputType OBJECT-TYPE
-- This value is a type 2 enumeration
SYNTAX INTEGER {
other(1),
unknown(2),
sheetFeedAutoRemovableTray(3),
sheetFeedAutoNonRemovableTray(4),
sheetFeedManual(5),
continuousRoll(6),
continuousFanFold(7)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of technology (discriminated primarily according to
feeder mechanism type) employed by the input sub-unit. Note,
the Optional Input Class provides for a descriptor field to
further qualify the other choice."
::= { prtInputEntry 2 }
prtInputDimUnit OBJECT-TYPE
SYNTAX MediaUnit
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The unit of measurement for use calculating and relaying
dimensional values for this input sub-unit."
::= { prtInputEntry 3 }
prtInputMediaDimFeedDirDeclared OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object provides the value of the declared dimension, in
the feed direction, of the media that is (or, if empty, was or
will be) in this input sub-unit. The feed direction is the
direction in which the media is fed on this sub-unit. This
dimension is measured in input sub-unit dimensional units
(prtInputDimUnit). If this input sub-unit can reliably sense
this value, the value is sensed by the printer and may not be
changed by management requests. Otherwise, the value may be
changed. The value (-1) means other and specifically means
that this sub-unit places no restriction on this parameter.
The value (-2) indicates unknown."
::= { prtInputEntry 4 }
prtInputMediaDimXFeedDirDeclared OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object provides the value of the declared dimension, in
the cross feed direction, of the media that is (or, if empty,
was or will be) in this input sub-unit. The cross feed
direction is ninety degrees relative to the feed direction
associated with this sub-unit. This dimension is measured in
input sub-unit dimensional units (prtInputDimUnit). If this
input sub-unit can reliably sense this value, the value is
sensed by the printer and may not be changed by management
requests. Otherwise, the value may be changed. The value (-1)
means other and specifically means that this sub-unit places
no restriction on this parameter. The value (-2) indicates
unknown."
::= { prtInputEntry 5 }
prtInputMediaDimFeedDirChosen OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The printer will act as if media of the chosen dimension (in
the feed direction) is present in this input source. Note
that this value will be used even if the input tray is empty.
Feed dimension measurements
are taken parallel relative to the feed direction
associated with that sub-unit and are in input sub-unit
dimensional units (DimUnit). If the printer supports the
declared dimension, the granted dimension is the same as
the declared dimension. If not, the granted dimension is
set to the closest dimension that the printer supports
when the declared dimension is set. The value (-1) means
other and specifically indicates that this sub-unit
places no restriction on this parameter. The value (-2)
indicates unknown."
::= { prtInputEntry 6 }
prtInputMediaDimXFeedDirChosen OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The printer will act as if media of the chosen dimension (in
the cross feed direction) is present in this input source.
Note that this value will be used even if the input tray is
empty. The cross feed direction is ninety degrees relative
to the feed direction associated with this sub-unit. This
dimension is measured in input sub-unit dimensional units
(DimUnit). If the printer supports the declared
dimension, the granted dimension is the same as the
declared dimension. If not, the granted dimension is set
to the closest dimension that the printer supports when
the declared dimension is set. The value (-1) means other
and specifically indicates that this sub-unit places no
restriction on this parameter. The value (-2) indicates
unknown."
::= { prtInputEntry 7 }
prtInputCapacityUnit OBJECT-TYPE
SYNTAX CapacityUnit
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The unit of measurement for use in calculating and relaying
capacity values for this input sub-unit."
::= { prtInputEntry 8 }
prtInputMaxCapacity OBJECT-TYPE
SYNTAX Integer32 MAX-ACCESS read-write STATUS current DESCRIPTION
"The maximum capacity of the input sub-unit in input
sub-unit capacity units (CapacityUnit). There is no
convention associated with the media itself so this value
reflects claimed capacity. If this input sub-unit can
reliably sense this value, the value is sensed by the
printer and may not be changed by management requests;
otherwise, the value may be written (by a Remote
Contol Panel or a Management Application).
The value (-1) means other and specifically
indicates that the sub-unit places no restrictions
on this parameter. The value (-2) means unknown."
::= { prtInputEntry 9 }
prtInputCurrentLevel OBJECT-TYPE
SYNTAX Integer32 -- in capacity units (CapacityUnit).
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The current capacity of the input sub-unit in input
sub-unit capacity units (CapacityUnit). If this input
sub-unit can reliably sense this value, the value is
sensed by the printer and may not be changed by
management requests; otherwise, the value may
be written (by a Remote Contol Panel or a
Management Application). The value (-1) means other and
specifically indicates that the sub-unit places no
restrictions on this parameter. The value (-2) means unknown.
The value (-3) means that the printer knows that at least one
unit remains."
::= { prtInputEntry 10 }
prtInputStatus OBJECT-TYPE
SYNTAX SubUnitStatus
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current status of this input sub-unit."
::= { prtInputEntry 11 }
prtInputMediaName OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A description of the media contained in this input sub-unit;
This description is intended for display to a human operator.
This description is not processed by the printer. It is used
to provide information not expressible in terms of the other
media attributes (e.g. prtInputMediaDimFeedDirChosen,
prtInputMediaDimXFeedDirChosen, prtInputMediaWeight,
prtInputMediaType). An example would be `legal tender bond
paper'."
::= { prtInputEntry 12 }
-- INPUT MEASUREMENT -- -- _______ | | -- ^ | | -- | | | | -- | |_ _ _ _ _ _ _ _ _ _ _| _________________ |direction -- | | | ^ v -- MaxCapacity | | | -- | | Sheets left in tray | CurrentLevel -- | | | | -- v | | v -- _______ +_____________________+ _______
-- The Extended Input Group -- -- This group is optional. However, to claim conformance to this -- group, it is necessary to implement every object in the group.
prtInputName OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The name assigned to this input sub-unit."
::= { prtInputEntry 13 }
prtInputVendorName OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The vendor name of this input sub-unit."
::= { prtInputEntry 14 }
prtInputModel OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The model name of this input sub-unit."
::= { prtInputEntry 15 }
prtInputVersion OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The version of this input sub-unit."
::= { prtInputEntry 16 }
prtInputSerialNumber OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..32))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The serial number assigned to this input sub-unit."
::= { prtInputEntry 17 }
prtInputDescription OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..255))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A free-form text description of this input
sub-unit in the localization specified by
prtGeneralCurrentLocalization."
::= { prtInputEntry 18 }
prtInputSecurity OBJECT-TYPE
SYNTAX PresentOnOff
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Indicates if this input sub-unit has some security
associated with it."
::= { prtInputEntry 19 }
-- The Input Media Group -- -- The Input Media Group supports identification of media installed -- or available for use on a printing device. Medium resources are -- identified by name, and include a collection of characteristic -- attributes that may further be used for selection and management -- of them. The Input Media group consists of a set of optional -- "columns" in the Input Table. In this manner, a minimally -- conforming implementation may choose to not support reporting -- of media resources if it cannot do so. -- -- This group is optional. However, to claim conformance to this -- group, it is necessary to implement every object in the group.
prtInputMediaWeight OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The weight of the medium associated with this input
sub-unit in grams / per meter squared. The value (-2) means
unknown."
::= { prtInputEntry 20 }
prtInputMediaType OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The name of the type of medium associated with this input
sub-unit. This name need not be processed by the printer; it
might simply be displayed to an operator. The standardized
string values from ISO 10175 (DPA) and ISO 10180 (SPDL) are:
stationery Separately cut sheets of an opaque material
transparency Separately cut sheets of a transparent material
envelope Envelopes that can be used for conventional
mailing purposes
envelope-plain Envelopes that are not preprinted and have no
windows
envelope-window Envelopes that have windows for addressing
purposes
continuous-long Continuously connected sheets of an opaque
material connected along the long edge
continuous-short Continuously connected sheets of an opaque
material connected along the short edge
tab-stock Media with tabs
multi-part-form Form medium composed of multiple layers not
pre-attached to one another; each sheet may be
drawn separately from an input source
labels Label stock
multi-layer Form medium composed of multiple layers which
are pre-attached to one another; e.g., for
use with impact printers"
::= { prtInputEntry 21 }
prtInputMediaColor OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The name of the color of the medium associated with
this input sub-unit using standardized string values
from ISO 10175 (DPA) and ISO 10180 (SPDL) which are:
other
unknown
white
pink
yellow
buff
goldenrod
blue
green
transparent
Implementors may add additional string values. The naming
conventions in ISO 9070 are recommended in order to avoid
potential name clashes."
::= { prtInputEntry 22 }
prtInputMediaFormParts OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The number of parts associated with the medium
associated with this input sub-unit if the medium is a
multi-part form. The value (-1) means other and
specifically indicates that the device places no
restrictions on this parameter. The value (-2) means
unknown."
::= { prtInputEntry 23 }
-- The Output Group -- -- Output sub-units are managed as a tabular, indexed collection of -- possible devices capable of receiving media delivered from the -- printing process. Output sub-units typically have a location, -- a type, an identifier, a set of constraints on possible media -- sizes and potentially other characteristics, and may be capable -- of indicating current status or capacity. -- -- Implementation of every object in this group is mandatory.
prtOutput OBJECT IDENTIFIER ::= { printmib 9 }
prtOutputDefaultIndex OBJECT-TYPE
SYNTAX Integer32 MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The value of prtOutputIndex corresponding to the default
output sub-unit; that is, this object selects the default
output destination."
::= { prtGeneralEntry 7 }
prtOutputTable OBJECT-TYPE
SYNTAX SEQUENCE OF PrtOutputEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of the devices capable of receiving media delivered
from the printing process."
::= { prtOutput 2 }
prtOutputEntry OBJECT-TYPE
SYNTAX PrtOutputEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Attributes of a device capable of receiving media delivered
from the printing process.
Entries may exist in the table for each device
index who's device type is `printer'."
INDEX { hrDeviceIndex, prtOutputIndex }
::= { prtOutputTable 1 }
PrtOutputEntry ::= SEQUENCE {
prtOutputIndex Integer32,
prtOutputType INTEGER,
prtOutputCapacityUnit CapacityUnit,
prtOutputMaxCapacity Integer32,
prtOutputRemainingCapacity Integer32,
prtOutputStatus SubUnitStatus,
prtOutputName OCTET STRING,
prtOutputVendorName OCTET STRING,
prtOutputModel OCTET STRING,
prtOutputVersion OCTET STRING,
prtOutputSerialNumber OCTET STRING,
prtOutputDescription OCTET STRING,
prtOutputSecurity PresentOnOff,
prtOutputDimUnit MediaUnit,
prtOutputMaxDimFeedDir Integer32,
prtOutputMaxDimXFeedDir Integer32,
prtOutputMinDimFeedDir Integer32,
prtOutputMinDimXFeedDir Integer32,
prtOutputStackingOrder INTEGER,
prtOutputPageDeliveryOrientation INTEGER,
prtOutputBursting PresentOnOff,
prtOutputDecollating PresentOnOff,
prtOutputPageCollated PresentOnOff,
prtOutputOffsetStacking PresentOnOff
}
prtOutputIndex OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A unique value used by this printer to identify this
output sub-unit. Although these values may change due
to a major reconfiguration of the sub-unit (e.g. the
addition of new output devices to the printer), values
are expected to remain stable across successive printer
power cycles."
::= { prtOutputEntry 1 }
prtOutputType OBJECT-TYPE
-- This value is a type 2 enumeration
SYNTAX INTEGER {
other(1),
unknown(2),
removableBin(3),
unRemovableBin(4),
continuousRollDevice(5),
mailBox(6),
continuousFanFold(7)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of technology supported by this output sub-unit."
::= { prtOutputEntry 2 }
prtOutputCapacityUnit OBJECT-TYPE
SYNTAX CapacityUnit
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The unit of measurement for use in calculating and relaying
capacity values for this output sub-unit."
::= { prtOutputEntry 3 }
prtOutputMaxCapacity OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The maximum capacity of this output sub-unit in output
sub-unit capacity units (CapacityUnit). There is no
convention associated with the media itself so this value
essentially reflects claimed capacity. If this output
sub-unit can reliably sense this value, the value is
sensed by the printer and may not be changed by management
requests; otherwise, the value may be written
(by a Remote Contol Panel or a Management Application).
The value (-1) means other and specifically indicates
that the sub-unit places no restrictions on this parameter.
The value (-2) means unknown."
::= { prtOutputEntry 4 }
prtOutputRemainingCapacity OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The remaining capacity of the possible output sub-unit
capacity in output sub-unit capacity units (CapacityUnit)
of this output sub-unit. If this output sub-unit can
reliably sense this value, the value is sensed by the
printer and may not be modified by management requests;
otherwise, the value may be written (by
a Remote Contol Panel or a Management
Application). The value (-1) means other and
specifically indicates that the sub-unit places no
restrictions on this parameter. The value (-2) means
unknown. The value (-3) means that the printer knows that
there remains capacity for at least one unit."
::= { prtOutputEntry 5 }
prtOutputStatus OBJECT-TYPE
SYNTAX SubUnitStatus
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current status of this output sub-unit."
::= { prtOutputEntry 6 }
-- OUTPUT MEASUREMENT -- -- _______ | | _______ -- ^ | | ^ -- | | | | -- | | | RemainingCapacity -- MaxCapacity | | | -- | | | v ^ -- | |_ _ _ _ _ _ _ _ _ _ _| ___________________ |direction -- | | | | -- | | Sheets in output | -- v | | -- _______ +_____________________+
-- The Extended Output Group -- -- This group is optional. However, to claim conformance to this -- group, it is necessary to implement every object in the group.
prtOutputName OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The name assigned to this output sub-unit."
::= { prtOutputEntry 7 }
prtOutputVendorName OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The vendor name of this output sub-unit."
::= { prtOutputEntry 8 }
prtOutputModel OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The name assigned to this output sub-unit."
::= { prtOutputEntry 9 }
prtOutputVersion OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..63)) MAX-ACCESS read-only STATUS current DESCRIPTION
"The version of this output sub-unit."
::= { prtOutputEntry 10 }
prtOutputSerialNumber OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The serial number assigned to this output sub-unit."
::= { prtOutputEntry 11 }
prtOutputDescription OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..255))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" A free-form text description of this output sub-unit in the
localization specified by prtGeneralCurrentLocalization."
::= { prtOutputEntry 12 }
prtOutputSecurity OBJECT-TYPE
SYNTAX PresentOnOff
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Indicates if this output sub-unit has some security associated
with it and if that security is enabled or not."
::= { prtOutputEntry 13 }
-- The Output Dimensions Group -- -- This group is optional. However, to claim conformance to this -- group, it is necessary to implement every object in the group.
prtOutputDimUnit OBJECT-TYPE
SYNTAX MediaUnit
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The unit of measurement for use in calculating and relaying
dimensional values for this output sub-unit."
::= { prtOutputEntry 14 }
prtOutputMaxDimFeedDir OBJECT-TYPE
SYNTAX Integer32 MAX-ACCESS read-write STATUS current DESCRIPTION
"The maximum dimensions supported by this output sub-unit
for measurements taken parallel relative to the feed
direction associated with that sub-unit in output
sub-unit dimensional units (DimUnit). If this output
sub-unit can reliably sense this value, the value is
sensed by the printer and may not be changed with
management protocol operations."
::= { prtOutputEntry 15 }
prtOutputMaxDimXFeedDir OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The maximum dimensions supported by this output sub-unit
for measurements taken ninety degrees relative to the
feed direction associated with that sub-unit in output
sub-unit dimensional units (DimUnit). If this output
sub-unit can reliably sense this value, the value is
sensed by the printer and may not be changed with
management protocol operations."
::= { prtOutputEntry 16 }
prtOutputMinDimFeedDir OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The minimum dimensions supported by this output sub-unit
for measurements taken parallel relative to the feed
direction associated with that sub-unit in output
sub-unit dimensional units (DimUnit). If this output
sub-unit can reliably sense this value, the value is
sensed by the printer and may not be changed with
management protocol operations."
::= { prtOutputEntry 17 }
prtOutputMinDimXFeedDir OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The minimum dimensions supported by this output sub-unit
for measurements taken ninety degrees relative to the
feed direction associated with that sub-unit in output
sub-unit dimensional units (DimUnit). If this output
sub-unit can reliably sense this value, the value is
sensed by the printer and may not be changed with
management protocol operations."
::= { prtOutputEntry 18 }
-- The Output Features Group -- -- This group is optional. However, to claim conformance to this -- group, it is necessary to implement every object in the group.
prtOutputStackingOrder OBJECT-TYPE
-- This value is a type 1 enumeration
SYNTAX INTEGER {
unknown(2),
firstToLast(3),
lastToFirst(4)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The current state of the stacking order for the
associated output sub-unit. `FirstToLast' means
that as pages are output the front of the next page is
placed against the back of the previous page.
`LasttoFirst' means that as pages are output the back
of the next page is placed against the front of the
previous page."
::= { prtOutputEntry 19 }
prtOutputPageDeliveryOrientation OBJECT-TYPE
-- This value is a type 1 enumeration
SYNTAX INTEGER {
faceUp(3),
faceDown(4)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The reading surface that will be `up' when pages are
delivered to the associated output sub-unit. Values are
Face-Up and Face-Down. (Note: interpretation of these
values is in general context-dependent based on locale;
presentation of these values to an end-user should be
normalized to the expectations of the user)."
::= { prtOutputEntry 20 }
prtOutputBursting OBJECT-TYPE
SYNTAX PresentOnOff MAX-ACCESS read-write STATUS current
DESCRIPTION
"This object indicates that the outputing sub-unit
supports bursting, and if so, whether the feature is enabled.
Bursting is the process by which continuous media is separated
into individual sheets, typically by bursting along pre-formed
perforations."
::= { prtOutputEntry 21 }
prtOutputDecollating OBJECT-TYPE
SYNTAX PresentOnOff
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object indicates that the output supports
supports decollating, and if so, whether the feature
is enabled. Decollating is the process by which the
individual parts within a multi-part form are separated
and sorted into separate stacks for each part."
::= { prtOutputEntry 22 }
prtOutputPageCollated OBJECT-TYPE
SYNTAX PresentOnOff
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object indicates that the output sub-unit
supports page collation, and if so, whether the feature is
enabled."
::= { prtOutputEntry 23 }
prtOutputOffsetStacking OBJECT-TYPE
SYNTAX PresentOnOff
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object indicates that the output supports
supports offset stacking, and if so, whether the feature is
enabled."
::= { prtOutputEntry 24 }
-- The Marker Group -- -- A marker is the mechanism that produces marks on the print media. The -- marker sub-units and their associated supplies are represented by the -- Marker Group in the model. A printer can contain one or more marking -- mechanisms. Some examples of multiple marker sub-units are: a printer -- with separate markers for normal and magnetic ink or an imagesetter -- that can output to both a proofing device and final film. Each marking
-- device can have its own set of characteristics associated with it, -- such as marking technology and resolution. -- -- Implementation of every object in this group is mandatory.
prtMarker OBJECT IDENTIFIER ::= { printmib 10 }
prtMarkerDefaultIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The value of prtMarkerIndex corresponding to the
default markersub-unit; that is, this object selects the
default marker."
::= { prtGeneralEntry 8 }
-- The printable area margins as listed below define an area of the print -- media which is guaranteed to be printable for all combinations of -- input, media paths, and interpreters for this marker.
prtMarkerTable OBJECT-TYPE
SYNTAX SEQUENCE OF PrtMarkerEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
::= { prtMarker 2 }
prtMarkerEntry OBJECT-TYPE
SYNTAX PrtMarkerEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Entries may exist in the table for each device
index who's device type is `printer'."
INDEX { hrDeviceIndex, prtMarkerIndex }
::= { prtMarkerTable 1 }
PrtMarkerEntry ::= SEQUENCE {
prtMarkerIndex Integer32,
prtMarkerMarkTech INTEGER,
prtMarkerCounterUnit INTEGER,
prtMarkerLifeCount Counter32,
prtMarkerPowerOnCount Counter32,
prtMarkerProcessColorants Integer32,
prtMarkerSpotColorants Integer32,
prtMarkerAddressabilityUnit INTEGER,
prtMarkerAddressabilityFeedDir Integer32,
prtMarkerAddressabilityXFeedDir Integer32,
prtMarkerNorthMargin Integer32,
prtMarkerSouthMargin Integer32,
prtMarkerWestMargin Integer32,
prtMarkerEastMargin Integer32,
prtMarkerStatus SubUnitStatus
}
prtMarkerIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A unique value used by the printer to identify this marking
SubUnitStatus. Although these values may change due to a major
reconfiguration of the device (e.g. the addition of new marking
sub-units to the printer), values are expected to remain
stable across successive printer power cycles."
::= { prtMarkerEntry 1 }
prtMarkerMarkTech OBJECT-TYPE
-- This value is a type 2 enumeration
SYNTAX INTEGER {
other(1),
unknown(2),
electrophotographicLED(3),
electrophotographicLaser(4),
electrophotographicOther(5),
impactMovingHeadDotMatrix9pin(6),
impactMovingHeadDotMatrix24pin(7),
impactMovingHeadDotMatrixOther(8),
impactMovingHeadFullyFormed(9),
impactBand(10),
impactOther(11),
inkjetAqueous(12),
inkjetSolid(13),
inkjetOther(14),
pen(15),
thermalTransfer(16),
thermalSensitive(17),
thermalDiffusion(18),
thermalOther(19),
electroerosion(20),
electrostatic(21),
photographicMicrofiche(22),
photographicImagesetter(23),
photographicOther(24),
ionDeposition(25),
eBeam(26),
typesetter(27)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of marking technology used for this marking sub-unit."
::= { prtMarkerEntry 2 }
prtMarkerCounterUnit OBJECT-TYPE
-- This value is a type 1 enumeration
SYNTAX INTEGER {
tenThousandthsOfInches(3), -- .0001
micrometers(4),
characters(5),
lines(6),
impressions(7),
sheets(8),
dotRow(9),
hours(11),
feet(16),
meters(17)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The unit that will be used by the printer when reporting
counter values for this marking sub-unit. The
time units of measure are provided for a device like a
strip recorder that does not or cannot track the physical
dimensions of the media and does not use characters,
lines or sheets."
::= { prtMarkerEntry 3}
prtMarkerLifeCount OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The count of the number of units of measure counted during
the life of printer using units of measure as specified by
CounterUnit."
::= { prtMarkerEntry 4 }
prtMarkerPowerOnCount OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The count of the number of units of measure counted since the
equipment was most recently powered on using units of measure as
specified by CounterUnit."
::= { prtMarkerEntry 5 }
prtMarkerProcessColorants OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of process colors supported by this marker. A
process color of 1 implies monochrome. The value of this
object and SpotColorants cannot both be 0. Must be 0 or
greater."
::= { prtMarkerEntry 6 }
prtMarkerSpotColorants OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of spot colors supported by this marker. The
value of this object and ProcessColorants cannot
both be 0. Must be 0 or greater."
::= { prtMarkerEntry 7 }
prtMarkerAddressabilityUnit OBJECT-TYPE
-- This value is a type 1 enumeration
SYNTAX INTEGER {
tenThousandthsOfInches(3), -- .0001
micrometers(4)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The unit of measure of distances."
::= { prtMarkerEntry 8 }
prtMarkerAddressabilityFeedDir OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of addressable marking positions in the feed
direction per 10000 units of measure specified by
AddressabilityUnit. A value of (-1) implies 'other' or
'infinite' while a value of (-2) implies 'unknown'."
::= { prtMarkerEntry 9 }
prtMarkerAddressabilityXFeedDir OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of addressable marking positions in the cross
feed direction in 10000 units of measure specified by
AddressabilityUnit. A value of (-1) implies 'other' or
'infinite' while a value of (-2) implies 'unknown'."
::= { prtMarkerEntry 10 }
prtMarkerNorthMargin OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The margin, in units identified by AddressabilityUnit,
from the leading edge of the medium as the medium flows
throught the marking engine with the side to be imaged
facing the observer. The leading edge is the North edge
and the other edges are defined by the normal compass
layout of directions with the compass facing the
observer. Printing within the area bounded by all four
margins is guaranteed for all interpreters. The value
(-2) means unknown."
::= { prtMarkerEntry 11 }
prtMarkerSouthMargin OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The margin from the South edge (see NorthMargin)
of the medium in units identified by
AddressabilityUnit. Printing within the area bounded by
all four margins is guaranteed for all interpreters.
The value (-2) means unknown."
::= { prtMarkerEntry 12 }
prtMarkerWestMargin OBJECT-TYPE
SYNTAX Integer32 MAX-ACCESS read-only STATUS current
DESCRIPTION
"The margin from the West edge (see NorthMargin) of the
medium in units identified by AddressabilityUnit.
Printing within the area bouned by all four margins is
guaranteed for all interpreters. The value (-2) means
unknown."
::= { prtMarkerEntry 13 }
prtMarkerEastMargin OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The margin from the East edge (see NorthMargin) of the
medium in units identified by AddressabilityUnit.
Printing within the area bounded by all four margins is
guaranteed for all interpreters. The value (-2) means
unknown."
::= { prtMarkerEntry 14 }
prtMarkerStatus OBJECT-TYPE
SYNTAX SubUnitStatus
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current status of this marker sub-unit."
::= { prtMarkerEntry 15 }
-- The Marker Supplies Group -- -- This group is optional. However, to claim conformance to this -- group, it is necessary to implement every object in the group.
prtMarkerSupplies OBJECT IDENTIFIER ::= { printmib 11 }
prtMarkerSuppliesTable OBJECT-TYPE
SYNTAX SEQUENCE OF PrtMarkerSuppliesEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of the marker supplies available on this printer."
::= { prtMarkerSupplies 1 }
prtMarkerSuppliesEntry OBJECT-TYPE
SYNTAX PrtMarkerSuppliesEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION
"Attributes of a marker supply.
Entries may exist in the table for each device
index who's device type is `printer'."
INDEX { hrDeviceIndex, prtMarkerSuppliesIndex }
::= { prtMarkerSuppliesTable 1 }
PrtMarkerSuppliesEntry ::= SEQUENCE {
prtMarkerSuppliesIndex Integer32,
prtMarkerSuppliesMarkerIndex Integer32,
prtMarkerSuppliesColorantIndex Integer32,
prtMarkerSuppliesClass INTEGER,
prtMarkerSuppliesType INTEGER,
prtMarkerSuppliesDescription OCTET STRING,
prtMarkerSuppliesSupplyUnit INTEGER,
prtMarkerSuppliesMaxCapacity Integer32,
prtMarkerSuppliesLevel Integer32
}
prtMarkerSuppliesIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A unique value used by the printer to identify this marker
supply. Although these values may change due to a major
reconfiguration of the device (e.g. the addition of new marker
supplies to the printer), values are expected to remain stable
across successive printer power cycles."
::= { prtMarkerSuppliesEntry 1 }
prtMarkerSuppliesMarkerIndex OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of prtMarkerIndex corresponding to the
marking sub-unit with which this marker supply
sub-unit is associated."
::= { prtMarkerSuppliesEntry 2 }
prtMarkerSuppliesColorantIndex OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of prtMarkerColorantIndex
corresponding to the colorant with which this
marker supply sub-unit is associated. This value
shall be 0 if there is no colorant table."
::= { prtMarkerSuppliesEntry 3 }
prtMarkerSuppliesClass OBJECT-TYPE
-- This value is a type 1 enumeration
SYNTAX INTEGER {
other(1),
supplyThatIsConsumed(3),
receptacleThatIsFilled(4)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates whether this supply entity represents a supply
container that is consumed or a receptacle that is filled."
::= { prtMarkerSuppliesEntry 4 }
prtMarkerSuppliesType OBJECT-TYPE
-- This value is a type 3 enumeration
SYNTAX INTEGER {
other(1),
unknown(2),
toner(3),
wasteToner(4),
ink(5),
inkCartridge(6),
inkRibbon(7),
wasteInk(8),
opc(9),
developer(10),
fuserOil(11),
solidWax(12),
ribbonWax(13),
wasteWax(14)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of this supply."
::= { prtMarkerSuppliesEntry 5 }
prtMarkerSuppliesDescription OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..255)) MAX-ACCESS read-only STATUS current DESCRIPTION
"The description of this supply container/receptacle in the
localization specified by prtGeneralCurrentLocalization."
::= { prtMarkerSuppliesEntry 6 }
prtMarkerSuppliesSupplyUnit OBJECT-TYPE
-- This value is a type 1 enumeration
SYNTAX INTEGER {
tenThousandthsOfInches(3), -- .0001
micrometers(4),
thousandthsOfOunces(12),
tenthsOfGrams(13),
hundrethsOfFluidOunces(14),
tenthsOfMilliliters(15)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Unit of this marker supply container/receptacle."
::= { prtMarkerSuppliesEntry 7 }
prtMarkerSuppliesMaxCapacity OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The maximum capacity of this supply container/receptacle
expressed in SupplyUnit. If this supply
container/receptacle can reliably sense this value, the
value is sensed by the printer and is read-only;
otherwise, the value may be written (by a Remote Contol
Panel or a Management Application). The value (-1) means
other and specifically indicates that the sub-unit places
no restrictions on this parameter. The value (-2) means
unknown."
::= { prtMarkerSuppliesEntry 8 }
prtMarkerSuppliesLevel OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The current level if this supply is a container; the
remaining space if this supply is a receptacle. If this
supply container/receptacle can reliably sense this
value, the value is sensed by the printer and is
read-only; otherwise, the value may be written (by a
Remote Contol Panel or a Management Application). The
value (-1) means other and specifically indicates that
the sub-unit places no restrictions on this parameter.
The value (-2) means unknown. A value of (-3) means that the
printer knows that there is some supply/remaining space,
respectively."
::= { prtMarkerSuppliesEntry 9 }
-- The Marker Colorant Group -- -- This group is optional. However, to claim conformance to this -- group, it is necessary to implement every object in the group.
prtMarkerColorant OBJECT IDENTIFIER ::= { printmib 12 }
prtMarkerColorantTable OBJECT-TYPE
SYNTAX SEQUENCE OF PrtMarkerColorantEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of all of the colorants available on the printer."
::= { prtMarkerColorant 1 }
prtMarkerColorantEntry OBJECT-TYPE
SYNTAX PrtMarkerColorantEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Attributes of a colorant available on the printer.
Entries may exist in the table for each device
index who's device type is `printer'."
INDEX { hrDeviceIndex, prtMarkerColorantIndex }
::= { prtMarkerColorantTable 1 }
PrtMarkerColorantEntry ::= SEQUENCE {
prtMarkerColorantIndex Integer32,
prtMarkerColorantMarkerIndex Integer32,
prtMarkerColorantRole INTEGER,
prtMarkerColorantValue OCTET STRING,
prtMarkerColorantTonality Integer32
}
prtMarkerColorantIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A unique value used by the printer to identify this colorant.
Although these values may change due to a major
reconfiguration of the device (e.g. the addition of new
colorants to the printer), values are expected to remain
stable across successive printer power cycles."
::= { prtMarkerColorantEntry 1 }
prtMarkerColorantMarkerIndex OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of prtMarkerIndex corresponding to the
marker sub-unit with which this colorant entry is
associated."
::= { prtMarkerColorantEntry 2 }
prtMarkerColorantRole OBJECT-TYPE
-- This value is a type 1 enumeration
SYNTAX INTEGER { -- Colorant Role
other(1),
process(3),
spot(4)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The role played by this colorant."
::= { prtMarkerColorantEntry 3 }
prtMarkerColorantValue OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The name of the color of this The name of the color of this
colorant using standardized string names from ISO 10175 (DPA)
and ISO 10180 (SPDL) which are:
other
unknown
white
red
green
blue
cyan
magenta
yellow
black
Implementors may add additional string values. The naming
conventions in ISO 9070 are recommended in order to avoid
potential name clashes"
::= { prtMarkerColorantEntry 4 }
prtMarkerColorantTonality OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The distinct levels of tonality realizable by a marking
sub-unit when using this colorant. This value does not
include the number of levels of tonal difference that an
interpreter can obtain by techniques such as half toning.
This value must be at least 2."
::= { prtMarkerColorantEntry 5 }
-- The Media Path Group -- -- The media paths encompass the mechanisms in the printer that move the -- media through the printer and connect all other media related sub- -- units: inputs, outputs, markers and finishers. A printer contains one -- or more media paths. These are represented by the Media Path Group in -- the model. The Media Path group has some attributes that apply to all -- paths plus a table of the separate media paths.
prtMediaPath OBJECT IDENTIFIER ::= { printmib 13 }
prtMediaPathDefaultIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The value of prtMediaPathIndex corresponding to
the default media path; that is, the selection of the
default media path."
::= { prtGeneralEntry 9 }
prtMediaPathTable OBJECT-TYPE
SYNTAX SEQUENCE OF PrtMediaPathEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
::= { prtMediaPath 4 }
prtMediaPathEntry OBJECT-TYPE
SYNTAX PrtMediaPathEntry MAX-ACCESS not-accessible STATUS current
DESCRIPTION
"Entries may exist in the table for each device
index who's device type is `printer'."
INDEX { hrDeviceIndex, prtMediaPathIndex }
::= { prtMediaPathTable 1 }
PrtMediaPathEntry ::= SEQUENCE {
prtMediaPathIndex Integer32, prtMediaPathMaxSpeedPrintUnit INTEGER, prtMediaPathMediaSizeUnit MediaUnit, prtMediaPathMaxSpeed Integer32, prtMediaPathMaxMediaFeedDir Integer32, prtMediaPathMaxMediaXFeedDir Integer32, prtMediaPathMinMediaFeedDir Integer32, prtMediaPathMinMediaXFeedDir Integer32, prtMediaPathType INTEGER, prtMediaPathDescription OCTET STRING, prtMediaPathStatus SubUnitStatus
}
prtMediaPathIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A unique value used by the printer to identify this media
path. Although these values may change due to a major
reconfiguration of the device (e.g. the addition of new
media paths to the printer), values are expected to remain
stable across successive printer power
cycles."
::= { prtMediaPathEntry 1 }
prtMediaPathMaxSpeedPrintUnit OBJECT-TYPE
-- This value is a type 1 enumeration
SYNTAX INTEGER {
tenThousandthsOfInchesPerHour(3), -- .0001/hour
micrometersPerHour(4),
charactersPerHour(5),
linesPerHour(6),
impressionsPerHour(7),
sheetsPerHour(8),
dotRowPerHour(9),
feetPerHour(16),
metersPerHour(17)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The unit of measure used in specifying the speed of all media
paths in the printer."
::= { prtMediaPathEntry 2 }
prtMediaPathMediaSizeUnit OBJECT-TYPE
SYNTAX MediaUnit
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The units of measure of media size for use in calculating and
relaying dimensional values for all media paths in the printer."
::= { prtMediaPathEntry 3 }
prtMediaPathMaxSpeed OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum printing speed of this media path expressed in
prtMediaPathMaxSpeedUnit's. A value of (-1) implies
'other'."
::= { prtMediaPathEntry 4 }
prtMediaPathMaxMediaFeedDir OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum physical media size in the feed direction of this
media path expressed in units of measure specified by
MediaSizeUnit. A value of (-1) implies 'unlimited'. A value
of (-2) implies 'unknown'"
::= { prtMediaPathEntry 5 }
prtMediaPathMaxMediaXFeedDir OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum physical media size across the feed direction of
this media path expressed in units of measure specified by
MediaSizeUnit. A value of (-2) implies 'unknown'."
::= { prtMediaPathEntry 6 }
prtMediaPathMinMediaFeedDir OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The minimum physical media size in the feed direction of this
media path expressed in units of measure specified by
MediaSizeUnit. A value of (-2) implies 'unknown'."
::= { prtMediaPathEntry 7 }
prtMediaPathMinMediaXFeedDir OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The minimum physical media size across the feed direction of
this media path expressed in units of measure specified by
MediaSizeUnit. A value of (-2) implies 'unknown'."
::= { prtMediaPathEntry 8 }
prtMediaPathType OBJECT-TYPE
-- This value is a type 2 enumeration
SYNTAX INTEGER {
other(1),
unknown(2),
longEdgeBindingDuplex(3),
shortEdgeBindingDuplex(4),
simplex(5)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of the media path for this media path."
::= { prtMediaPathEntry 9 }
prtMediaPathDescription OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..255))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The manufacturer-provided description of this media path in
the localization specified by prtGeneralCurrentLocalization."
::= { prtMediaPathEntry 10 }
prtMediaPathStatus OBJECT-TYPE
SYNTAX SubUnitStatus
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current status of this media path."
::= { prtMediaPathEntry 11 }
-- The Channel Group -- -- Implementation of every object in this group is mandatory.
-- Channels are independent sources of print data. Here, -- print data is the term used for the information that is -- used to construct printed pages and may have both data -- and control aspects. The output of a channel is in a form -- suitable for input to one of the interpreters as a -- stream. A channel may be independently enabled (allowing -- print data to flow) or disabled (stopping the flow of -- print data). A printer may have one or more channels. -- -- Basically, the channel abstraction is intended to cover -- all the aspects of getting the print data to an -- interpreter. This might include transporting the data -- from one place to another, it might include (invisible) -- compression, it might include encoding or packetizing to -- provide multiple information sources over a single -- physical interface and it might include filtering -- characters that were destined for another kind of -- channel. All of these aspects are hidden in the channel -- abstraction.(Note some Page Description Languages have -- compression built into them so "invisible" compression -- refers to compression done by the transport medium and -- removed before the data is presented to the interpreter.) -- -- There are many kinds of channels;some of which are based -- on networks and others which are not. For example, a -- channel can be a serial (or parallel) connection; it can -- be a service, such as the Unix Line Printer Daemon (LPD), -- offering itself over a network connection (interface); or -- it could be a disk drive into which a floppy disks with -- the print data is inserted. Each channel is typically -- identified by the electronic path and/or service protocol -- used to deliver print data to the printer. -- -- Channel example Implementation -- -- serial port channel bi-directional data channel -- parallel port channel often uni-directional channel -- IEEE 1284 port channel bi-directional channel -- SCSI port channel bi-directional -- Apple PAP channel may be based on Local-, Ether-or -- TokenTalk -- LPD Server channel typically TCP/IP based, port 515
-- Novell Remote Printer typically SPX/IPX based channel -- Novell Print Server typically SPX/IPX based channel -- port 9100 channel HP and friends -- Adobe AppSocket(9101) channel a bi-directional extension of LPD -- -- It is easy to note that this is a mixed bag. There are -- some physical connections over which no (or very meager) -- protocols are run (e.g. the serial or old parallel ports) -- and there are services which often have elaborate -- protocols that run over a number of protocol stacks. In -- the end what is important is the delivery of print data -- thru the channel. -- -- The channel sub-units are represented by the Channel -- Group in the Model. It has a current Control Language -- which can be used to specify which interpreter is to be -- used for the print data and to query and change -- environment variables used by the interpreters (and -- Mangement Applications). There is also a default -- interpreter that is to be used if an interpreter is not -- explicitly specified using the Control Language. Channel -- sub-units are based on an underlying interface.
-- The channel table and its underlying structure -- -- The first seven items in the Channel Table define the -- "channel" itself. A channel typically depends on other -- protocols and interfaces to provide the data that flows -- thru the channel. It is necessary to provide control of -- the (perhaps complex) process by which print data arrives -- at an interpreter. Control is largely limited to enabling -- or disabling the whole channel. It is likely, however, -- that more control of the process of accessing print data -- will be needed over time. Thus, the ChannelType will -- allow type specific data to be associated with each -- channel (using ChannelType specific groups in a fashion -- analogous to the media specific MIBs that are associated -- with the IANAIfType in the Interfaces Table). As a first -- step in this direction, each channel will identify the -- underlying Interface on which it is based. This is the -- eighth object in each row of the table.
-- Some examples of the kind of control are where -- compression or encoding is used; and whether the data is -- filtered to remove file storage anomolies such as those -- created by using MS-DOS/PC-DOS LPT1:. --
-- The Channel Table -- -- The prtChannelTable represents the set of input data sources which -- can provide print data to one or more of the interpreters -- available on a printer
prtChannel OBJECT IDENTIFIER ::= { printmib 14 }
prtChannelTable OBJECT-TYPE
SYNTAX SEQUENCE OF PrtChannelEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
::= { prtChannel 1 }
prtChannelEntry OBJECT-TYPE
SYNTAX PrtChannelEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Entries may exist in the table for each device
index who's device type is `printer'."
INDEX { hrDeviceIndex, prtChannelIndex }
::= { prtChannelTable 1 }
PrtChannelEntry ::= SEQUENCE {
prtChannelIndex Integer32, prtChannelType INTEGER, prtChannelProtocolVersion OCTET STRING, prtChannelCurrentJobCntlLangIndex Integer32, prtChannelDefaultPageDescLangIndex Integer32, prtChannelState INTEGER, prtChannelIfIndex Integer32, prtChannelStatus SubUnitStatus
}
prtChannelIndex OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A unique value used by the printer to identify this data
channel. Although these values may change due to a major
reconfiguration of the device (e.g. the addition of new data
channels to the printer), values are expected to remain
stable across successive printer power cycles."
::= { prtChannelEntry 1 }
prtChannelType OBJECT-TYPE
-- This value is a type 2 enumeration
SYNTAX INTEGER {
other(1),
chSerialPort(3),
chParallelPort(4),
chIEEE1284Port(5),
chSCSIPort(6),
chAppleTalkPAP(7), -- AppleTalk Printer Achess Protocol
chLPDServer(8),
chNetwareRPrinter(9), -- Netware
chNetwarePServer(10), -- Netware
chPort9100(11),
chAppSocket(12), -- a bi-directional, LPD-like
-- protocol using 9101 for
-- control and 9100 for data.
-- Adobe Systems, Inc.
chFTP(13), -- FTP "PUT" to printer
chTFTP(14),
chDLCLLCPort(15),
chIBM3270(16),
chIBM5250(17),
chFax(18),
chIEEE1394(19),
chTransport1(20), -- port 35
chCPAP(21), -- port 170
chDCERemoteProcCall(22), -- OSF
chONCRemoteProcCall(23), -- Sun Microsystems
chOLE(24), -- Microsoft
chNamedPipe(25),
chPCPrint(26), -- Banyan
chServerMessageBlock(27),
-- File/Print sharing protocol used by
-- various network operating systems
-- from IBM 3Com, Microsoft and others
chDPMF(28), -- Distributed Print Mgt. Framework, IBM
chDLLAPI(29), -- Microsoft
chVxDAPI(30), -- Microsoft
chSystemObjectManager(31), -- IBM
chDECLAT(32), -- Digital Equipment Corp.
chNPAP(33)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of this print data channel. This
object provides the linkage to ChannelType-specific
groups that may (conceptually) extend the prtChannelTable
with additional details about that channel."
::= { prtChannelEntry 2 }
prtChannelProtocolVersion OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The version of the protocol used on this
channel. The format used for version numbering depends
on prtChannelType."
::= { prtChannelEntry 3 }
prtChannelCurrentJobCntlLangIndex OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The value of prtInterpreterIndex corresponding to the
Control Language Interpreter for this channel. This
interpreter defines the syntax used for control
functions, such as querying or changing environment
variables and identifying job boundaries (e.g. PJL,
PostScript, NPAP). Must be 1 or greater."
::= { prtChannelEntry 4 }
prtChannelDefaultPageDescLangIndex OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The value of prtInterpreterIndex corresponding to the
Page Description Language Interpreter for this channel.
This interpreter defines the default Page Description
Language interpreter to be used for the print data unless
the Control Language is used to select a specific
interpreter (e.g., PCL, PostScript Language,
auto-sense). Must be 1 or greater."
::= { prtChannelEntry 5 }
prtChannelState OBJECT-TYPE
-- This value is a type 1 enumeration
SYNTAX INTEGER {
other(1),
printDataAccepted(3),
noDataAccepted(4)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The state of this print data channel. The value determines
whether control information and print data is allowed through
this channel or not."
::= { prtChannelEntry 6 }
prtChannelIfIndex OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The value of ifIndex (in the ifTable; see the interface
section of MIB-2/RFC 1213) which corresponds to this channel.
When more than one row of the ifTable is relevant, this is
the index of the row representing the topmost layer in the
interface hierarchy. A value of zero indicates that no
interface is associated with this channel."
::= { prtChannelEntry 7 }
prtChannelStatus OBJECT-TYPE
SYNTAX SubUnitStatus
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current status of the channel."
::= { prtChannelEntry 8 }
-- The Interpreter Group -- -- The interpreter sub-units are responsible for the conversion of a -- description of intended print instances into images that are to be -- marked on the media. A printer may have one or more interpreters. The -- interpreter sub-units are represented by the Interpreter Group in the -- Model. Each interpreter is generally implemented with software running -- on the System Controller sub-unit. The Interpreter Table has one entry -- per interpreter where the interpreters include both Page Description -- Language (PDL) Interpreters and Control Language Interpreters. -- -- Implementation of every object in this group is mandatory.
prtInterpreter OBJECT IDENTIFIER ::= { printmib 15 }
-- Interpreter Table --
-- The prtInterpreterTable is a table representing the interpreters in -- the printer. An entry shall be placed in the interpreter table for -- each interpreter on the printer.
prtInterpreterTable OBJECT-TYPE
SYNTAX SEQUENCE OF PrtInterpreterEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
::= { prtInterpreter 1 }
prtInterpreterEntry OBJECT-TYPE
SYNTAX PrtInterpreterEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Entries may exist in the table for each device
index who's device type is `printer'."
INDEX { hrDeviceIndex, prtInterpreterIndex }
::= { prtInterpreterTable 1 }
PrtInterpreterEntry ::= SEQUENCE {
prtInterpreterIndex Integer32, prtInterpreterLangFamily INTEGER, prtInterpreterLangLevel OCTET STRING, prtInterpreterLangVersion OCTET STRING, prtInterpreterDescription OCTET STRING, prtInterpreterVersion OCTET STRING, prtInterpreterDefaultOrientation INTEGER, prtInterpreterFeedAddressability Integer32, prtInterpreterXFeedAddressability Integer32, prtInterpreterDefaultCharSetIn CodedCharSet, prtInterpreterDefaultCharSetOut CodedCharSet, prtInterpreterTwoWay INTEGER
}
prtInterpreterIndex OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A unique value for each PDL or control language for which
there exists an interpreter or emulator in the printer. The
value is used to identify this interpreter. Although these
values may change due to a major reconfiguration of the device
(e.g. the addition of new interpreters to the printer), values
are expected to remain stable across successive printer power
cycles."
::= { prtInterpreterEntry 1 }
prtInterpreterLangFamily OBJECT-TYPE
-- This value is a type 2 enumeration
SYNTAX INTEGER {
other(1),
langPCL(3), -- PCL. Starting with PCL version 5,
-- HP-GL/2 is included as part of the
-- PCL language.
-- PCL and HP-GL/2 are registered
-- trademarks of Hewlett-Packard Company.
langHPGL(4), -- Hewlett-Packard Graphics Language.
-- HP-GL is a registered trademark of
-- Hewlett-Packard Company.
langPJL(5), -- Peripheral Job Language. Appears in the
-- data stream between data intended for a
-- page description language.
-- Hewlett-Packard Co.
langPS(6), -- PostScript Language (tm)
-- Postscript - a trademark of Adobe
-- Systems Incorporated which may be
-- registered in certain jurisdictions
langPSPrinter(42), -- The PostScript Language used for
-- control (with any PDLs)
-- Adobe Systems Incorporated
langIPDS(7), -- Intelligent Printer Data Stream
-- Bi-directional print data stream for
-- documents consisting of data objects
-- (text, image, graphics, bar codes),
-- resources (fonts, overlays) and page,
-- form and finishing instructions.
-- Facilitates system level device
-- control, document tracking and error
-- recovery throughout the print process.
-- Pennant Systems, IBM
langPPDS(8), -- IBM Personal Printer Data Stream.
-- Originally called IBM ASCII, the name
-- was changed to PPDS when the Laser
-- Printer was introduced in 1989.
-- Lexmark International, Inc.
langEscapeP(9),
langEpson(10),
langDDIF(11), -- Digital Document Interchange Format
-- Digital Equipment Corp., Maynard MA
langInterpress(12),
langISO6429(13), -- ISO 6429. Control functions for Coded
-- Character Sets (has ASCII control
-- characters, plus additional controls for
-- character imaging devices.)
-- ISO Standard, Geneva, Switzerland
langLineData(14), -- line-data: Lines of data as separate
-- ASCII or EBCDIC records and containing
-- no control functions (no CR, LF, HT, FF,
-- etc.). For use with traditional line
-- printers. May use CR and/or LF to
-- delimit lines, instead of records. See
-- ISO 10175 Document Printing Application
-- (DPA)
-- ISO standard, Geneva, Switzerland
langMODCA(15), -- Mixed Object Document Content Architecture
-- Definitions that allow the composition,
-- interchange, and presentation of final
-- form documents as a collection of data
-- objects (text, image, graphics, bar
-- codes), resources (fonts, overlays) and
-- page, form and finishing instructions.
-- Pennant Systems, IBM
langREGIS(16), -- Remote Graphics Instruction Set,
-- Digital Equipment Corp., Maynard MA
langSCS(17), -- SNA Character String
-- Bi-directional print data stream for SNA
-- LU-1 mode of communications
-- IBM
langSPDL(18), -- ISO 10180 Standard Page Description
-- Language
-- ISO Standard
langTEK4014(19),
langPDS(20),
langIGP(21),
langCodeV(22), -- Magnum Code-V, Image and printer control
-- language used to control impact/dot-
-- matrix printers.
-- QMS, Inc., Mobile AL
langDSCDSE(23), -- DSC-DSE: Data Stream Compatible and
-- Emulation Bi-directional print data
-- stream for non-SNA (DSC) and SNA LU-3
-- 3270 controller (DSE) communications
-- IBM
langWPS(24), -- Windows Printing System, Resource based
-- command/data stream used by Microsoft At
-- Work Peripherals.
-- Developed by the Microsoft Corporation.
langLN03(25), -- Early DEC-PPL3, Digital Equipment Corp.
langCCITT(26),
langQUIC(27), -- QUIC (Quality Information Code), Page
-- Description Language for laser printers.
-- Included graphics, printer control
-- capability and emulation of other well-
-- known printer .
-- QMS, Inc.
langCPAP(28), -- Common Printer Access Protocol
-- Digital Equipment Corp.
langDecPPL(29), -- Digital ANSI-Compliant Printing Protocol
-- (DEC-PPL)
-- Digital Equipment Corp.
langSimpleText(30),-- simple-text: character coded data,
-- including NUL, CR , LF, HT, and FF
-- control characters. See ISO 10175
-- Document Printing Application (DPA)
-- ISO standard, Geneva, Switzerland
langNPAP(31), -- Network Printer Alliance Protocol
-- IEEE 1284.1
langDOC(32), -- Document Option Commands, Appears in the
-- data stream between data intended for a
-- page description .
-- QMS, Inc.
langimPress(33), -- imPRESS, Page description language
-- originally developed for the ImageServer
-- line of systems. A binary language
-- providing representations for text,
-- simple graphics (rules, lines, conic
-- sections), and some large forms (simple
-- bit-map and CCITT group 3/4 encoded).The
-- language was intended to be sent over an
-- 8-bit channel and supported early
-- document preparation languages (e.g. TeX
-- and TROFF).
-- QMS, Inc.
langPinwriter(34), -- 24 wire dot matrix printer for
-- USA, Europe, and Asia except Japan.
-- More widely used in Germany, and some
-- Asian countries than in US.
-- NEC
langNPDL(35), -- Page printer for Japanese
-- market.
-- NEC
langNEC201PL(36), -- Serial printer language used in the
-- Japanese market.
-- NEC
langAutomatic(37), -- Automatic PDL sensing. Automatic
-- sensing of the interpreter language
-- family by the printer examining the
-- document content. Which actual
-- interpreter language families are sensed
-- depends on the printer implementation.
langPages(38), -- Page printer Advanced Graphic Escape Set
-- IBM Japan
langLIPS(39), -- LBP Image Processing System
langTIFF(40), -- Tagged Image File Format (Aldus)
langDiagnostic(41),-- A hex dump of the input to the
-- interpreter
langCaPSL(43), -- Canon Print Systems Language
langEXCL(44), -- Extended Command Language
-- Talaris Systems Inc.
langLCDS(45), -- Line Conditioned Data Stream
-- Xerox Corporation
langXES(46) -- Xerox Escape Sequences
-- Xerox Corporation
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The family name of a Page Description Language (PDL) or
control language which this interpreter in the printer can
interpret or emulate. This type 2 list of enumerations
requires review before additional entries are made."
::= { prtInterpreterEntry 2 }
prtInterpreterLangLevel OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..31))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The level of the language which this interpreter is
interpreting or emulating. This might contain a value like
'5e' for an interpreter which is emulating level 5e of the PCL
language. It might contain '2' for an interpreter which is
emulating level 2 of the PostScript language. Similarly it
might contain '2' for an interpreter which is emulating level
2 of the HPGL language."
::= { prtInterpreterEntry 3 }
prtInterpreterLangVersion OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..31))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The date code or version of the language which this interpreter
is interpreting or emulating."
::= { prtInterpreterEntry 4 }
prtInterpreterDescription OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..255))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A string to identify this interpreter in the localization
specified by prtGeneralCurrentLocalization as opposed to the
language which is being interpreted. It is anticipated that
this string will allow manufacturers to unambiguously identify
their interpreters."
::= { prtInterpreterEntry 5 }
prtInterpreterVersion OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..31))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The date code, version number, or other product specific
information tied to this interpreter. This value is
associated with the interpreter, rather than with the version
of the language which is being interpreted or emulated."
::= { prtInterpreterEntry 6 }
prtInterpreterDefaultOrientation OBJECT-TYPE
-- This value is a type 1 enumeration
SYNTAX INTEGER {
other(1),
portrait(3),
landscape(4)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The current orientation default for this interpreter. This
value may be overridden for a particular job (e.g., by a
command in the input data stream)."
::= { prtInterpreterEntry 7 }
prtInterpreterFeedAddressability OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum interpreter addressability in the feed
direction in 10000 prtMarkerAddressabilityUnit s (see
prtMarkerAddressabilityFeedDir ) for this interpreter.
The value (-1) means other and specifically indicates
that the sub-unit places no restrictions on this parameter."
::= { prtInterpreterEntry 8 }
prtInterpreterXFeedAddressability OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum interpreter addressability in the cross feed
direction in 10000 prtMarkerAddressabilityUnit s (see
prtMarkerAddressabilityXFeedDir) for this interpreter.
The value (-1) means other and specifically indicates
that the sub-unit places no restrictions on this
parameter."
::= { prtInterpreterEntry 9 }
prtInterpreterDefaultCharSetIn OBJECT-TYPE
SYNTAX CodedCharSet
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The default coded character set for input octets
encountered outside a context in which the Page
Description Language established the interpretation
of the octets.
This value shall be (2) if there is no default."
::= { prtInterpreterEntry 10 }
prtInterpreterDefaultCharSetOut OBJECT-TYPE
SYNTAX CodedCharSet
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The default character set for data coming from this interpreter
through the printer's output channel.
This value shall be (2) if there is no default."
::= { prtInterpreterEntry 11 }
prtInterpreterTwoWay OBJECT-TYPE
-- This value is a type 1 enumeration
SYNTAX INTEGER {
yes(3),
no(4)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates whether or not this interpreter returns information
back to the host."
::= { prtInterpreterEntry 12 }
-- The Console Group -- -- Many printers have a console on the printer, the operator console, -- that is used to display and modify the state of the printer. The -- console can be as simple as a few indicators and switches or as -- complicated as full screen displays and keyboards. There can be -- at most one such console. -- -- Implementation of every object in this group is mandatory.
prtConsoleLocalization OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The value of the prtLocalizationIndex corresponding to
the language, country, and character set to be used for the
console. This localization applies both to the actual display
on the console as well as the encoding of these console
objects in management operations."
::= { prtGeneralEntry 10 }
prtConsoleNumberOfDisplayLines OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of lines on the printer's physical
display. This value is 0 if there are no lines on the
physical display or if there is no physical display"
::= { prtGeneralEntry 11 }
prtConsoleNumberOfDisplayChars OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of characters per line displayed on the physical
display. This value is 0 if there are no lines on the
physical display or if there is no physical display"
::= { prtGeneralEntry 12 }
prtConsoleDisable OBJECT-TYPE
SYNTAX INTEGER {
enabled(3),
disabled(4)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object enables or disables manual input from the
operators console."
::= { prtGeneralEntry 13 }
-- The Display Buffer Table
prtConsoleDisplayBuffer OBJECT IDENTIFIER ::= { printmib 16 }
prtConsoleDisplayBufferTable OBJECT-TYPE
SYNTAX SEQUENCE OF PrtConsoleDisplayBufferEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
::= { prtConsoleDisplayBuffer 5 }
prtConsoleDisplayBufferEntry OBJECT-TYPE
SYNTAX PrtConsoleDisplayBufferEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains one entry for each physical line on
the display. Lines cannot be added or deleted.
Entries may exist in the table for each device
index who's device type is `printer'."
INDEX { hrDeviceIndex, prtConsoleDisplayBufferIndex }
::= { prtConsoleDisplayBufferTable 1 }
PrtConsoleDisplayBufferEntry ::= SEQUENCE {
prtConsoleDisplayBufferIndex Integer32, prtConsoleDisplayBufferText OCTET STRING
}
prtConsoleDisplayBufferIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A unique value for each console line in the printer. The
value is used to identify this console line. Although
these values may change due to a major reconfiguration of
the device (e.g. the addition of new console lines to the
printer), values are expected to remain stable across
successive printer power cycles."
::= { prtConsoleDisplayBufferEntry 1 }
prtConsoleDisplayBufferText OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..255))
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The content of a line in the logical display buffer of
the operator's console of the printer. When a write
operation occurs, normally a critical message, to one of
the LineText strings, the agent should make that line
displayable if a physical display is present. Writing
a zero length string clears the line. It is an
implementation-specific matter as to whether the agent allows
a line to be overwritten before it has been cleared.
Printer generated strings shall be in the localization
specified by ConsoleLocalization. Management Application
generated strings should be localized by the Management
Application."
::= { prtConsoleDisplayBufferEntry 2 }
-- The Console Light Table
prtConsoleLights OBJECT IDENTIFIER ::= { printmib 17 }
prtConsoleLightTable OBJECT-TYPE
SYNTAX SEQUENCE OF PrtConsoleLightEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
::= { prtConsoleLights 6 }
prtConsoleLightEntry OBJECT-TYPE
SYNTAX PrtConsoleLightEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Entries may exist in the table for each device
index who's device type is `printer'."
INDEX { hrDeviceIndex, prtConsoleLightIndex }
::= { prtConsoleLightTable 1 }
PrtConsoleLightEntry ::= SEQUENCE {
prtConsoleLightIndex Integer32, prtConsoleOnTime Integer32, prtConsoleOffTime Integer32, prtConsoleColor INTEGER, prtConsoleDescription OCTET STRING
}
prtConsoleLightIndex OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A unique value used by the printer to identify this light.
Although these values may change due to a major
reconfiguration of the device (e.g. the addition of new lights
to the printer), values are expected to remain stable across
successive printer power cycles."
::= { prtConsoleLightEntry 1 }
prtConsoleOnTime OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The on time in milliseconds of blinking of this light; 0
indicates off always. If both prtConsoleOnTime
and prtConsoleOffTime are 0, then the light is
always off."
::= { prtConsoleLightEntry 2 }
prtConsoleOffTime OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The off time in milliseconds of blinking of this light; 0
indicates on always. If both prtConsoleOnTime
and prtConsoleOffTime are 0, then the light is
always off."
::= { prtConsoleLightEntry 3 }
prtConsoleColor OBJECT-TYPE
-- This value is a type 2 enumeration
SYNTAX INTEGER {
other(1),
unknown(2),
white(3),
red(4),
green(5),
blue(6),
cyan(7),
magenta(8),
yellow(9)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The color of this light."
::= { prtConsoleLightEntry 4 }
prtConsoleDescription OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..255))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The vendor description or label of this light in the
localization specified by prtConsoleLocalization."
::= { prtConsoleLightEntry 5 }
-- The Alerts Group -- -- The prtAlertTable lists all the critical and non-critical alerts -- currently active in the printer. A critical alert is one that stops -- the printer from printing immediately and printing can not continue -- until the critical alert condition is eliminated. Non-critical -- alerts are those items that do not stop printing but may at some -- future time. -- The table contains information on the severity, component, detail -- location within the component, alert code and description of each -- critical alert that is currently active within the printer. See -- 2.2.13 for a more complete description of the alerts table and -- its management. -- -- Implementation of every object in this group is mandatory.
prtAlert OBJECT IDENTIFIER ::= { printmib 18 }
prtAlertTable OBJECT-TYPE
SYNTAX SEQUENCE OF PrtAlertEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
::= { prtAlert 1 }
prtAlertEntry OBJECT-TYPE
SYNTAX PrtAlertEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Entries may exist in the table for each device
index who's device type is `printer'."
INDEX { hrDeviceIndex, prtAlertIndex }
::= { prtAlertTable 1 }
PrtAlertEntry ::= SEQUENCE {
prtAlertIndex Integer32, prtAlertSeverityLevel INTEGER, prtAlertTrainingLevel INTEGER, prtAlertGroup INTEGER, prtAlertGroupIndex Integer32, prtAlertLocation Integer32, prtAlertCode INTEGER, prtAlertDescription OCTET STRING, prtAlertTime TimeTicks
}
prtAlertIndex OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The index value used to determine which alerts
have been added or removed from the alert table.
This is an incrementing integer starting from zero
every time the printer is reset. When the printer
adds an alert to the table, that alert is assigned
the next higher integer value from the last item
entered into the table. If the index value reaches
its maximum value, the next item entered will cause
the index value to roll over and start at zero
again. The first event placed in the alert table
after a reset of the printer shall
have an index value of 1. NOTE: The management
application will read the alert table when a trap
or event notification occurs or at a periodic rate
and then parse the table to determine if any new
entries were added by comparing the last known index
value with the current highest index value. The
management application will then update its copy of
the alert table. When the printer discovers that
an alert is no longer active, the printer shall
remove the row for that alert from the table and
shall reduce the number of rows in the table. The
printer may add or delete any number of rows from
the table at any time. The management station
can detect when binary alerts have been deleted by
requesting an attribute of each alert, and noting
alerts as deleted when that retrieval is not possible."
::= { prtAlertEntry 1 }
prtAlertSeverityLevel OBJECT-TYPE
-- This value is a type 1 enumeration
SYNTAX INTEGER {
other(1),
critical(3),
warning(4)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The level of severity of this alert table entry. The printer
determines the severity level assigned to each entry into the
table."
::= { prtAlertEntry 2 }
prtAlertTrainingLevel OBJECT-TYPE
-- This value is a type 2 enumeration
SYNTAX INTEGER {
other(1),
unknown(2),
untrained(3),
trained(4),
fieldService(5),
management(6)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The level of training required to handle this alert. The
training level is an enumeration that is determined and
assigned by the printer manufacturer based on the information
or the training required to handle this alert. The printer
will break alerts into these different training levels. It is
the responsibility of the management application in the system
to determine how a particular alert is handled and how and to
whom that alert is routed. The following are the four
training levels of alerts:
Field Service - Alerts that typically require advanced
training and technical knowledge of the printer
and its sub-units. An example of a technical
person would be a manufacture's Field Service
representative, or other person formally
trained by the manufacturer or similar
representative.
Trained - Alerts that require an intermediate or moderate
level of knowledge of the printer and its
sub-units. A typical examples of alerts that
a trained operator can handle is replacing
toner cartridges.
Untrained - Alerts that can be fixed without prior
training either because the action to correct
the alert is obvious or the printer can help the
untrained person fix the problem. A typical
example of such an alert is reloading paper
trays and emptying output bins on a low end
printer.
Management - Alerts that have to do with overall
operation of and configuration of the printer.
Examples of management events are configuration
change of sub-units."
::= { prtAlertEntry 3 }
prtAlertGroup OBJECT-TYPE
-- This value is a type 1 enumeration
SYNTAX INTEGER {
other(1),
hostResourcesMIBStorageTable(3),
hostResourcesMIBDeviceTable(4),
generalPrinter(5),
cover(6),
localization(7),
input(8),
output(9),
marker(10),
markerSupplies(11),
markerColorant(12),
mediaPath(13),
channel(14),
interpreter(15),
consoleDisplayBuffer(16),
consoleLights(17)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of sub-unit within the printer model that this alert
is related. Input, output, and markers are examples of
printer model groups, i.e., examples of types of sub-units.
Whereever possible, these enumerations match the
sub-identifier that identifies the relevant table in the
printmib."
::= { prtAlertEntry 4 }
prtAlertGroupIndex OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An index of the row within the principle table in the
group identified by prtAlertGroup that represents the
sub-unit of the printer that caused this alert. The
combination of the Group and the GroupIndex defines
exactly which printer sub-unit caused the alert.; for
example, Input #3, Output #2, and Marker #1.
Every object in this MIB is indexed with hrDeviceIndex and
optionally, another index variable. If this other index
variable is present in the table that generated the alert, it
will be used as the value for this object. Otherwise, this
value shall be -1."
::= { prtAlertEntry 5 }
prtAlertLocation OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The sub-unit location that is defined by the printer
manufacturer to further refine the location of this alert
within the designated sub-unit. The location is used in
conjunction with the Group and GroupIndex values; for
example, there is an alert in Input #2 at location number 7."
::= { prtAlertEntry 6 }
prtAlertCode OBJECT-TYPE
-- This value is a type 2 enumeration
SYNTAX INTEGER {
other(1),
unknown(2),
-- codes common to serveral groups
coverOpen(3),
coverClosed(4),
interlockOpen(5),
interlockClosed(6),
configurationChange(7),
jam(8),
-- general Printer group
doorOpen(501),
doorClosed(502),
powerUp(503),
powerDown(504),
-- Input Group
inputMediaTrayMissing(801),
inputMediaSizeChange(802),
inputMediaWeightChange(803),
inputMediaTypeChange(804),
inputMediaColorChange(805),
inputMediaFormPartsChange(806),
inputMediaSupplyLow(807),
inputMediaSupplyEmpty(808),
-- Output Group
outputMediaTrayMissing(901),
outputMediaTrayAlmostFull(902),
outputMediaTrayFull(903),
-- Marker group
markerFuserUnderTemperature(1001),
markerFuserOverTemperature(1002),
-- Marker Supplies group
markerTonerEmpty(1101),
markerInkEmpty(1102),
markerPrintRibbonEmpty(1103),
markerTonerAlmostEmpty(1104),
markerInkAlmostEmpty(1105),
markerPrintRibbonAlmostEmpty(1106),
markerWasteTonerReceptacleAlmostFull(1107),
markerWasteInkReceptacleAlmostFull(1108),
markerWasteTonerReceptacleFull(1109),
markerWasteInkReceptacleFull(1110),
markerOpcLifeAlmostOver(1111),
markerOpcLifeOver(1112),
markerDeveloperAlmostEmpty(1113),
markerDeveloperEmpty(1114),
-- Media Path Device Group
mediaPathMediaTrayMissing(1301),
mediaPathMediaTrayAlmostFull(1302),
mediaPathMediaTrayFull(1303),
-- interpreter Group
interpreterMemoryIncrease(1501),
interpreterMemoryDecrease(1502),
interpreterCartridgeAdded(1503),
interpreterCartridgeDeleted(1504),
interpreterResourceAdded(1505),
interpreterResourceDeleted(1506),
interpreterResourceUnavailable(1507)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The code that describes the type of alert for this entry in
the table. There are different codes for each
sub-unit type: for example, Media Supply Low and Media
Supply Empty are Aler codes for the Input sub-unit."
::= { prtAlertEntry 7}
prtAlertDescription OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..255))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A description of this alert entry in the localization
specified by prtGeneralCurrentLocalization. The description is
provided by the printer to further elaborate on the enumerated
alert or provide information in the case where the code is
classified ask `other' or `unknown'. The printer is required
to return a description string but the string may be a null
string."
::= { prtAlertEntry 8 }
printerV1Alert OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The value of the enterprise-specific oid in a SNMPv1 trap sent
signalling a critical event in the prtAlertTable."
::= { prtAlert 2 }
printerV2AlertPrefix OBJECT IDENTIFIER ::= { printerV1Alert 0 }
printerV2Alert NOTIFICATION-TYPE
OBJECTS { prtAlertIndex, prtAlertSeverityLevel, prtAlertGroup,
prtAlertGroupIndex, prtAlertLocation, prtAlertCode }
STATUS current
DESCRIPTION
"This trap is sent whenever a critical event is added to the
prtAlertTable."
::= { printerV2AlertPrefix 1 }
-- Note that the SNMPv2 to SNMPv1 translation rules dictate that the -- preceding structure will result in SNMPv1 traps of the following -- form: --
-- printerAlert TRAP-TYPE -- ENTERPRISE printerV1Alert -- VARIABLES { prtAlertIndex, prtAlertSeverityLevel, prtAlertGroup, -- prtAlertGroupIndex, prtAlertLocation, prtAlertCode } -- DESCRIPTION -- "This trap is sent whenever a critical event is added to the -- prtAlertTable." -- ::= 1
-- The Alert Time Group -- -- This group is optional. However, to claim conformance to this -- group, it is necessary to implement every object in the group.
prtAlertTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime at the time that this alert was
generated."
::= { prtAlertEntry 9 }
-- Conformance Information
prtMIBConformance OBJECT IDENTIFIER ::= { printmib 2 }
-- compliance statements prtMIBCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for agents that implement the
printer MIB."
MODULE -- this module
MANDATORY-GROUPS { prtGeneralGroup, prtInputGroup, prtOutputGroup,
prtMarkerGroup, prtMediaPathGroup,
prtChannelGroup, prtInterpreterGroup,
prtConsoleGroup, prtAlertTableGroup }
OBJECT prtGeneralReset
SYNTAX INTEGER {
notResetting(3),
resetToNVRAM(5)
}
DESCRIPTION
"It is conformant to implement just these two states in
this object. Any additional states are optional."
OBJECT prtConsoleOnTime
MIN-ACCESS read-only
DESCRIPTION
"It is conformant to implement this object as read-only."
OBJECT prtConsoleOffTime
MIN-ACCESS read-only
DESCRIPTION
"It is conformant to implement this object as read-only."
-- the prtResponsiblePartyGroup, prtExtendedInputGroup,
-- prtInputMediaGroup, prtExtendedOutputGroup,
-- prtOutputDimensionsGroup, prtOutputFeaturesGroup,
-- prtMarkerSuppliesGroup, prtMarkerColorantGroup,
-- and the prtAlertTimeGroup are completely optional.
::= { prtMIBConformance 1 }
prtMIBGroups OBJECT IDENTIFIER ::= { prtMIBConformance 2 }
prtGeneralGroup OBJECT-GROUP
OBJECTS { prtGeneralConfigChanges, prtGeneralCurrentLocalization,
prtGeneralReset, prtCoverDescription, prtCoverStatus,
prtLocalizationLanguage, prtLocalizationCountry,
prtLocalizationCharacterSet, prtStorageRefIndex,
prtDeviceRefIndex }
STATUS current
DESCRIPTION
"The general printer group."
::= { prtMIBGroups 1 }
prtResponsiblePartyGroup OBJECT-GROUP
OBJECTS { prtGeneralCurrentOperator, prtGeneralServicePerson }
STATUS current
DESCRIPTION
"The responsible party group contains contact information for
humans responsible for the printer."
::= { prtMIBGroups 2 }
prtInputGroup OBJECT-GROUP
OBJECTS { prtInputDefaultIndex, prtInputType, prtInputDimUnit,
prtInputMediaDimFeedDirDeclared,
prtInputMediaDimXFeedDirDeclared,
prtInputMediaDimFeedDirChosen,
prtInputMediaDimXFeedDirChosen, prtInputCapacityUnit,
prtInputMaxCapacity, prtInputCurrentLevel,
prtInputStatus, prtInputMediaName }
STATUS current
DESCRIPTION
"The input group."
::= { prtMIBGroups 3 }
prtExtendedInputGroup OBJECT-GROUP
OBJECTS { prtInputName, prtInputVendorName, prtInputModel,
prtInputVersion, prtInputSerialNumber,
prtInputDescription, prtInputSecurity }
STATUS current
DESCRIPTION
"The extended input group."
::= { prtMIBGroups 4 }
prtInputMediaGroup OBJECT-GROUP
OBJECTS { prtInputMediaWeight, prtInputMediaType,
prtInputMediaColor, prtInputMediaFormParts }
STATUS current
DESCRIPTION
"The input media group."
::= { prtMIBGroups 5 }
prtOutputGroup OBJECT-GROUP
OBJECTS { prtOutputDefaultIndex, prtOutputType,
prtOutputCapacityUnit, prtOutputMaxCapacity,
prtOutputRemainingCapacity, prtOutputStatus }
STATUS current
DESCRIPTION
"The output group."
::= { prtMIBGroups 6 }
prtExtendedOutputGroup OBJECT-GROUP
OBJECTS { prtOutputName, prtOutputVendorName, prtOutputModel,
prtOutputVersion, prtOutputSerialNumber,
prtOutputDescription, prtOutputSecurity }
STATUS current
DESCRIPTION
"The extended output group."
::= { prtMIBGroups 7 }
prtOutputDimensionsGroup OBJECT-GROUP
OBJECTS { prtOutputDimUnit, prtOutputMaxDimFeedDir,
prtOutputMaxDimXFeedDir, prtOutputMinDimFeedDir,
prtOutputMinDimXFeedDir }
STATUS current
DESCRIPTION
"The output dimensions group"
::= { prtMIBGroups 8 }
prtOutputFeaturesGroup OBJECT-GROUP
OBJECTS { prtOutputStackingOrder,
prtOutputPageDeliveryOrientation, prtOutputBursting,
prtOutputDecollating, prtOutputPageCollated,
prtOutputOffsetStacking }
STATUS current
DESCRIPTION
"The output features group."
::= { prtMIBGroups 9 }
prtMarkerGroup OBJECT-GROUP
OBJECTS { prtMarkerDefaultIndex, prtMarkerMarkTech,
prtMarkerCounterUnit, prtMarkerLifeCount,
prtMarkerPowerOnCount, prtMarkerProcessColorants,
prtMarkerSpotColorants, prtMarkerAddressabilityUnit,
prtMarkerAddressabilityFeedDir,
prtMarkerAddressabilityXFeedDir, prtMarkerNorthMargin,
prtMarkerSouthMargin, prtMarkerWestMargin,
prtMarkerEastMargin, prtMarkerStatus }
STATUS current
DESCRIPTION
"The marker group."
::= { prtMIBGroups 10 }
prtMarkerSuppliesGroup OBJECT-GROUP
OBJECTS { prtMarkerSuppliesMarkerIndex,
prtMarkerSuppliesColorantIndex, prtMarkerSuppliesClass,
prtMarkerSuppliesType, prtMarkerSuppliesDescription,
prtMarkerSuppliesSupplyUnit,
prtMarkerSuppliesMaxCapacity, prtMarkerSuppliesLevel }
STATUS current
DESCRIPTION
"The marker supplies group."
::= { prtMIBGroups 11 }
prtMarkerColorantGroup OBJECT-GROUP
OBJECTS { prtMarkerColorantMarkerIndex, prtMarkerColorantRole,
prtMarkerColorantValue, prtMarkerColorantTonality }
STATUS current
DESCRIPTION
"The marker colorant group."
::= { prtMIBGroups 12 }
prtMediaPathGroup OBJECT-GROUP
OBJECTS { prtMediaPathDefaultIndex, prtMediaPathMaxSpeedPrintUnit,
prtMediaPathMediaSizeUnit, prtMediaPathMaxSpeed,
prtMediaPathMaxMediaFeedDir,
prtMediaPathMaxMediaXFeedDir,
prtMediaPathMinMediaFeedDir,
prtMediaPathMinMediaXFeedDir, prtMediaPathType,
prtMediaPathDescription, prtMediaPathStatus}
STATUS current
DESCRIPTION
"The media path group."
::= { prtMIBGroups 13 }
prtChannelGroup OBJECT-GROUP
OBJECTS { prtChannelType, prtChannelProtocolVersion,
prtChannelCurrentJobCntlLangIndex,
prtChannelDefaultPageDescLangIndex, prtChannelState,
prtChannelIfIndex, prtChannelStatus }
STATUS current
DESCRIPTION
"The channel group."
::= { prtMIBGroups 14 }
prtInterpreterGroup OBJECT-GROUP
OBJECTS { prtInterpreterLangFamily, prtInterpreterLangLevel,
prtInterpreterLangVersion, prtInterpreterDescription,
prtInterpreterVersion, prtInterpreterDefaultOrientation,
prtInterpreterFeedAddressability,
prtInterpreterXFeedAddressability,
prtInterpreterDefaultCharSetIn,
prtInterpreterDefaultCharSetOut, prtInterpreterTwoWay }
STATUS current
DESCRIPTION
"The interpreter group."
::= { prtMIBGroups 15 }
prtConsoleGroup OBJECT-GROUP
OBJECTS { prtConsoleLocalization, prtConsoleNumberOfDisplayLines,
prtConsoleNumberOfDisplayChars, prtConsoleDisable,
prtConsoleDisplayBufferText, prtConsoleOnTime,
prtConsoleOffTime, prtConsoleColor,
prtConsoleDescription }
STATUS current
DESCRIPTION
"The console group."
::= { prtMIBGroups 16 }
prtAlertTableGroup OBJECT-GROUP
OBJECTS { prtAlertSeverityLevel, prtAlertTrainingLevel,
prtAlertGroup, prtAlertGroupIndex, prtAlertLocation,
prtAlertCode, prtAlertDescription }
STATUS current
DESCRIPTION
"The alert table group."
::= { prtMIBGroups 17 }
prtAlertTimeGroup OBJECT-GROUP
OBJECTS { prtAlertTime }
STATUS current
DESCRIPTION
"The alert time group."
::= { prtMIBGroups 18 }
END
Appendix A - Glossary of Terms
Addressability -- on the marker, the number of distinctly setable marking units (pels) per unit of addressability unit; for example, 300 dots per inch is expressed as 300 per 1000 Thousandths Of Inches and 4 dots per millimeter is 4 per 1000 Micrometers. Addressability is not resolution because marks that are one addressability position apart may not be independently resolvable by the eye due to factors such as gain in the area of marks so they overlap or nearly touch.
Alert -- a reportable event for which there is an entry in the alert table
Bin -- an output sub-unit which may or may not be removable
Bursting -- the process by which continuous media is separated into individual sheets, typically by bursting along pre-formed perforations.
Channel -- A term used to describe a single source of data which is presented to a printer. The model that we use in describing a printer allows for an arbitrary number of channels. Multiple channels can exist on the same physical port. This is commonly done over EtherNet ports where EtherTalk, TCP/IP, and SPX/IPX protocols can be supplying different data streams simultaneously to a single printer on the same physical port.
Collation -- in multiple copy output, placing the pages from separate copies into separte output bins
Control Language - a data syntax or language for controlling the printer through the print data channel.
Critical Alert -- an alert triggered by an event which leads to a state in which printing is no longer possible; the printer is stopped
Decollating -- the process by which the individual parts within a multi-part form are separated and sorted into separate stacks for each part.
Description -- information about the configuration and capabilities of the printer and its various sub-units
DPA - ISO 10175 Document Printing Application standard. A standard for a client server protocol for a print system, including (1) submitting print jobs to and (2) managing print jobs in a spooler
Event - a state change in the printer
Group -- a collection of objects that represent a type of sub-unit of the printer
IANA - Internet Assigned Numbers Authority. See STD 2, RFC 1700.
Idempotent -- Idempotence is the property of an operation that results in the same state no matter how many times it is executed (at least once). This is a property that is shared by true databases in which operations on data items only change the state of the data item and do not have other side effects. Because the SNMP data model is that of operations on a database, SNMP MIB objects should be assumed to be idempotent. If a MIB object is defined in a non-idempotent way, the this data model can break in subtle ways when faced with packet loss, multiple managers, and other common conditions.
In order to fulfill the common need for actions to result from SNMP Set operations, SNMP MIB objects can be modeled such that the change in state from one state to another has the side effect of causing an action. It is important to note that with this model, an SNMP operation that sets a value equal to its current value will cause no action. This retains the idempotence of a single command, while allowing actions to be initiated by SNMP SET requests.
For example, a switch like the foot switch that changes from high beams to low beams is not idempotent. If the command is received multiple times the result may be different than if the command was received a single time. In the SNMP world preferred commands would be "set lights to high beam" and "set lights to low beam". These commands yield predictable results when executed perhaps multiple times. A command like "press foot toggle switch", is not idempotent because when executed an unknown number of times, it yields an indeterminate result.
Input -- a tray or bin from which instances of the media are obtained and fed into the Media Path
Interpreter - the embodiment of an algorithm that processes a data stream consisting of a Page Description Language (PDL) and/or a Control Language.
Localization -- the specification of human language, country, and character set needed to present information to people in their native languages.
Management Application (a.k.a. Manager) -- a program which queries and controls one or more managed nodes
Management Station -- a physical computer on which one or more management applications can run
Media Path -- the mechanisms that transport instances of the media from an input, through the marker, possibly through media buffers and duplexing pathways, out to the output with optional finishing applied. The inputs and outputs are not part of the Media Path.
MIB - Management Information Base - the specification for a set of management objects to be managed using SNMP or other management protocol; also an instance of the data for such a set
Non-critical Alert -- an alert triggered by a reportable event which does not lead to a state in which printing is no longer possible; such an alert may lead to a state from which printing may no longer be possible in the future, such as the low toner state or the alert may be pure informational, such as a configuration change at the printer.
Object - a data item that has a name, a syntax, and a value. usage).
Output -- a bin or stacker which accepts instances of media that have been processed by a printer
Page Description Language (PDL) - a data syntax or language for the electronic representation of a document as a sequence of page images.
Printer -- a physical device that takes media from an input source, produces marks on that media according to some page description or page control language and puts the result in some output destination, possibly with finishing applied.
Printing -- the entire process of producing a printed document from gen- eration of the file to be printed, choosing printing properties, selection of a printer, routing, queuing, resource management, scheduling, and finally printing including notifying the user
Reportable event -- an event that is deemed of interest to a management station watching the printer
Status -- information regarding the current operating state of the printer and its various sub-units. This is an abstraction of the exact physical condition of the printer.
Sub-mechanism -- a distinguishable part of a sub-unit
Sub-unit -- a part of the printer which may be a physical part, such as one of the input sources or a logical part such as an interpreter.
Tray -- an input sub-unit which is typically removable
Visible state -- that portion of the state of the printer that can be examined by a management application
Appendix B - Media Size Names from ISO/IEC 10175 Document Printing
Architecture
For the convenience of management application developers, this appendix lists the standardized media size names from ISO/IEC 10175 Document Printing Application (DPA). Management applications that present a dialogue for choosing or displaying media size are encouraged to present relevant names from this list to avoid requiring the user to remember the physical dimensions used to describe the size of the media. A printer implementing the Printer MIB has no knowledge of these names, however; all media sizes in the MIB are given in terms of media dimensions as the values of prtInputChosenMediaDimFeedDir and prtInputChosen-MediaDimXFeedDir.
String name Description other unknown na-letter or letter North American letter
size: 8.5 by 11 inches
na-legal or legal North American legal
size: 8.5 by 14 inches
na-10x13-envelope North American 10x13 envelope
size: 10 by 13 inches
na-9x12-envelope North American 9x12 envelope
size: 9 by 12 inches
na-number-10-envelope North American number 10 business envelope
size: 4.125 by 9.5 inches
na-7x9-envelope North American 7x9
size: 7 by 9 inches
na-9x11-envelope North American 9x11
size: 9 by 11 inches
na-10x14-envelope North American 10x14 envelope
size: 10 by 14 inches
na-number-9-envelope North American number 9 business envelope na-6x9-envelope North American 6x9 envelope
size: 6 by 9 inches
na-10x15-envelope North American 10x15 envelope
size: 10 by 15 inches
a engineering A size 8.5 inches by 11 inches b engineering B size 11 inches by 17 inches c engineering C size 17 inches by 22 inches d engineering D size 22 inches by 34 inches e engineering E size 34 inches by 44 inches
iso-a0 ISO A0 size: 841 mm by 1189 mm iso-a1 ISO A1 size: 594 mm by 841 mm iso-a2 ISO A2 size: 420 mm by 594 mm iso-a3 ISO A3 size: 297 mm by 420 mm iso-a4 ISO A4 size: 210 mm by 297 mm iso-a5 ISO A5 size: 148 mm by 210 mm iso-a6 ISO A6 size: 105 mm by 148 mm iso-a7 ISO A7 size: 74 mm by 105 mm iso-a8 ISO A8 size: 52 mm by 74 mm iso-a9 ISO A9 size: 37 mm by 52 mm iso-a10 ISO A10 size: 26 mm by 37 mm iso-b0 ISO B0 size: 1000 mm by 1414 mm iso-b1 ISO B1 size: 707 mm by 1000 mm iso-b2 ISO B2 size: 500 mm by 707 mm iso-b3 ISO B3 size: 353 mm by 500 mm iso-b4 ISO B4 size: 250 mm by 353 mm iso-b5 ISO B5 size: 176 mm by 250 mm iso-b6 ISO B6 size: 125 mm by 176 mm iso-b7 ISO B7 size: 88 mm by 125 mm iso-b8 ISO B8 size: 62 mm by 88 mm iso-b9 ISO B9 size: 44 mm by 62 mm iso-b10 ISO B10 size: 31 mm by 44 mm iso-c0 ISO C0 size: 917 mm by 1297 mm iso-c1 ISO C1 size: 648 mm by 917 mm iso-c2 ISO C2 size: 458 mm by 648 mm iso-c3 ISO C3 size: 324 mm by 458 mm iso-c4 ISO C4 size: 229 mm by 324 mm iso-c5 ISO C5 size: 162 mm by 229 mm iso-c6 ISO C6 size: 114 mm by 162 mm iso-c7 ISO C7 size: 81 mm by 114 mm iso-c8 ISO C8 size: 57 mm by 81 mm iso-designated ISO Designated Long
size: 110 mm by 220 mm
jis-b0 JIS B0 size 1030 mm by 1456 mm jis-b1 JIS B1 size 728 mm by 1030 mm jis-b2 JIS B2 size 515 mm by 728 mm jis-b3 JIS B3 size 364 mm by 515 mm jis-b4 JIS B4 size 257 mm by 364 mm jis-b5 JIS B5 size 182 mm by 257 mm jis-b6 JIS B6 size 128 mm by 182 mm jis-b7 JIS B7 size 91 mm by 128 mm jis-b8 JIS B8 size 64 mm by 91 mm jis-b9 JIS B9 size 45 mm by 64 mm jis-b10 JIS B10 size 32 mm by 45 mm
Appendix C - Media Names
For the convenience of management application developers, this appendix lists the standardized media names from ISO/IEC 10175 Document Printing Application (DPA). Management applications that present a dialogue for choosing media may wish to use these names as an alternative to separately specifying, size, color, and/or type. Using standard media names will mean that a single management application dealing with printers from different vendors and under different system mangers will tend to use the same names for the same media. If selection of media by name is used, the attributes (size, type or color) implied by the name must be explicitly mapped to the appropriate object (prtInputDeclared-MediaDimFeedDir, prtInputDeclaredMediaDimXFeedDir, prtInputMediaType and prtInputMediaColor) in the MIB. The object prtInputMediaName is intended for display to an operator and is purely descriptive. The value in prtInputMediaName is not interpreted by the printer so using a standard name for this value will not change any of the other media attributes nor will it cause an alert if the media in the input sub- unit does not match the name.
Simple Name Descriptor Text
other
unknown
iso-a4-white Specifies the ISO A4 white medium with
size: 210 mm by 297 mm as defined in ISO 216
iso-a4-coloured Specifies the ISO A4 coloured medium with
size: 210 mm by 297 mm as defined in ISO 216
iso-a4-transparent Specifies the ISO A4 transparent medium with
size: 210 mm by 297 mm as defined in ISO 216
iso-a3-white Specifies the ISO A3 white medium with
size: 297 mm by 420 mm as defined in ISO 216
iso-a3-coloured Specifies the ISO A3 coloured medium with
size: 297 mm by 420 mm as defined in ISO 216
iso-a5-white Specifies the ISO A5 white medium with
size: 148 mm by 210 mm as defined in ISO 216
iso-a5-coloured Specifies the ISO A5 coloured medium with
size: 148 mm by 210 mm as defined in ISO 216
iso-b4-white Specifies the ISO B4 white medium with
size: 250 mm by 353 mm as defined in ISO 216
iso-b4-coloured Specifies the ISO B4 coloured medium with
size: 250 mm by 353 mm as defined in ISO 216
iso-b5-white Specifies the ISO B5 white medium with
size: 176 mm by 250 mm as defined in ISO 216
iso-b5-coloured Specifies the ISO B5 coloured medium with
size: 176 mm by 250 mm as defined in ISO 216
jis-b4-white Specifies the JIS B4 white medium with
size: 257 mm by 364 mm as defined in JIS P0138
jis-b4-coloured Specifies the JIS B4 coloured medium with
size: 257 mm by 364 mm as defined in JIS P0138
jis-b5-white Specifies the JIS B5 white medium with
size: 182 mm by 257 mm as defined in JIS P0138
jis-b5-coloured Specifies the JIS B5 coloured medium with
size: 182 mm by 257 mm as defined in JIS P0138
The following standard values are defined for North American media:
na-letter-white Specifies the North American letter white
medium with size: 8.5 inches by 11 inches
na-letter-coloured Specifies the North American letter coloured
medium with size: 8.5 inches by 11 inches
na-letter-transparent
Specifies the North American letter transparent
medium with size: 8.5 inches by 11 inches
na-legal-white Specifies the North American legal white
medium with size: 8.5 inches by 14 inches
na-legal-coloured Specifies the North American legal coloured
medium with size: 8.5 inches by 14 inches
The following standard values are defined for envelopes:
iso-b5-envelope Specifies the ISO B5 envelope medium
with size: 176 mm by 250 mm
as defined in ISO 216 and ISO 269
iso-b4-envelope Specifies the ISO B4 envelope medium
with size: 250 mm by 353 mm
as defined in ISO 216
iso-c4-envelope Specifies the ISO C4 envelope medium
with size: 229 mm by 324 mm
as defined in ISO 216 and ISO 269
iso-c5-envelope Specifies the ISO C5 envelope medium
with size: 162 mm by 229 mm
as defined in ISO 269
iso-designated-long-envelope
Specifies the ISO Designated Long envelope medium
with size: 110 mm by 220 mm
as defined in ISO 269
na-10x13-envelope Specifies the North American 10x13 envelope medium
with size: 10 inches by 13 inches
na-9x12-envelope Specifies the North American 9x12 envelope medium
with size: 9 inches by 12 inches
na-number-10-envelope
Specifies the North American number 10 business
envelope medium
with size: 4.125 inches by 9.5 inches na-7x9-envelope Specifies the North American 7x9 inch envelope
na-9x11-envelope Specifies the North American 9x11 inch envelope
na-10x14-envelope Specifies the North American 10x14 inch envelope
na-number-9-envelope
Specifies the North American number 9 business
envelope
na-6x9-envelope Specifies the North American 6x9 inch envelope
na-10x15-envelope Specifies the North American 10x15 inch envelope
The following standard values are defined for the less commonly used media (white-only):
iso-a0-white Specifies the ISO A0 white medium
with size: 841 mm by 1189 mm
as defined in ISO 216
iso-a1-white Specifies the ISO A1 white medium
with size: 594 mm by 841 mm
as defined in ISO 216
iso-a2-white Specifies the ISO A2 white medium
with size: 420 mm by 594 mm
as defined in ISO 216
iso-a6-white Specifies the ISO A6 white medium
with size: 105 mm by 148 mm
as defined in ISO 216
iso-a7-white Specifies the ISO A7 white medium
with size: 74 mm by 105 mm
as defined in ISO 216
iso-a8-white Specifies the ISO A8 white medium
with size: 52 mm by 74 mm
as defined in ISO 216
iso-a9-white Specifies the ISO A9 white medium
with size: 39 mm by 52 mm
as defined in ISO 216
iso-10-white Specifies the ISO A10 white medium
with size: 26 mm by 37 mm
as defined in ISO 216
iso-b0-white Specifies the ISO B0 white medium
with size: 1000 mm by 1414 mm
as defined in ISO 216
iso-b1-white Specifies the ISO B1 white medium
with size: 707 mm by 1000 mm
as defined in ISO 216
iso-b2-white Specifies the ISO B2 white medium
with size: 500 mm by 707 mm
as defined in ISO 216
iso-b3-white Specifies the ISO B3 white medium
with size: 353 mm by 500 mm
as defined in ISO 216
iso-b6-white Specifies the ISO B6 white medium
with size: 125 mm by 176 mm i
as defined in ISO 216
iso-b7-white Specifies the ISO B7 white medium
with size: 88 mm by 125 mm
as defined in ISO 216
iso-b8-white Specifies the ISO B8 white medium
with size: 62 mm by 88 mm
as defined in ISO 216
iso-b9-white Specifies the ISO B9 white medium
with size: 44 mm by 62 mm
as defined in ISO 216
iso-b10-white Specifies the ISO B10 white medium
with size: 31 mm by 44 mm
as defined in ISO 216
jis-b0-white Specifies the JIS B0 white medium with size:
1030 mm by 1456 mm
jis-b1-white Specifies the JIS B1 white medium with size:
728 mm by 1030 mm
jis-b2-white Specifies the JIS B2 white medium with size:
515 mm by 728 mm
jis-b3-white Specifies the JIS B3 white medium with size:
364 mm by 515 mm
jis-b6-white Specifies the JIS B6 white medium with size:
257 mm by 364 mm
jis-b7-white Specifies the JIS B7 white medium with size:
182 mm by 257 mm
jis-b8-white Specifies the JIS B8 white medium with size:
128 mm by 182 mm
jis-b9-white Specifies the JIS B9 white medium with size:
91 mm by 128 mm
jis-b10-white Specifies the JIS B10 white medium with size:
64 mm by 91 mm
The following standard values are defined for engineering media:
a Specifies the engineering A size medium with size:
8.5 inches by 11 inches
b Specifies the engineering B size medium with size:
11 inches by 17 inches
c Specifies the engineering C size medium with size:
17 inches by 22 inches
d Specifies the engineering D size medium with size:
22 inches by 34 inches
e Specifies the engineering E size medium with size:
34 inches by 44 inches
Appendix D - Roles of Users
Background
The need for Role Models stemmed in large part from the need to understand the importance any given managed object under consideration for inclusion in the specification. Many times the presence or nature of a particular proposed object would be debated within the group; the debate would typically end when one or more persons would describe the potential usage for the object, usually in terms of a "live" person operating in some target environment.
Steve Zilles (Adobe) first mentioned that he had considered this general problem and had come up with a short list of categories by which the group can evaluate the relative utility of a proposed object. The list Steve described was:
- User
- Trained Operator
- Service
Upon further examination of the overall problem I found it useful to expand the list of categories, as well as attempt to define a basic set of "requirements areas" that can help define the basic nature of each category.
Every concept needs a name, and this concept is no different. For lack of better alternatives, I refer to these categories as "Role Models" in this document. This name was chosen in light of the fact that many times we try to find a "person" (or similar entity) for which the use of a proposed object is targeted. (I resisted the temptation to use the term "Usage Models," as I felt the term was too generic in nature.)
In presenting the initial list of Role Models, the initial set of "requirements areas" are presented, followed by the set of Role Model definitions. Finally, a simple matrix is presented in which Role Models and requirements areas are cross-compared.
It should be emphasized at this point that all of this is proposed as initial information for further discussion. No doubt major changes
will be proposed by members of the group as time goes on.
Proposed Print System Requirements Areas
Surrounding printers and printing systems, the following list of "requirement areas" is proposed as a "check list" of needs for the various Role Models:
Printer job state - Determine the status of a job without a printer. Printer capabilities - Determine the current capabilities of a printer, for example, the available media sizes, two-sided printing, a particular type of interpreter, etc. Printer job submission - Submit a print job to a printer. Printer job removal - Remove a job from a printer. Notification of events - Receive notification of the existence of a defined printer event. An event can be of many types, including warnings, errors, job stage completion (e.g., "job done"), etc. Printer configuration - Query the current configuration of a printer. Printer consumables - Determine the current state of any and all consumables within a printer. Print job identification - Determine the identification of a job within a printer. Internal printer status - Determine the current status of the printer. Printer identification - Determine the identify of a printer. Printer location - Determine the physical location of a printer. Local system configuration - Determine various aspects of the current configuration of the local system involved with the operation of a printer.
These "requirements" cover a large spectrum of requirements surrounding the operation of a printer in a network environment. This list is by no means complete, but serves as a starting point for assessing major requirements of the various Role Models described below.
Proposed Role Models
Following is a proposed list of "Role Models" to be used in evaluating the requirements for any given object defined within the Printer MIB. Note that the keyword enclosed in parentheses represents an abbreviation for the particular Role Model in the matrix described later in this document.
User (USER) - A person or application that submits print jobs to the printer; typically viewed as the "end user" within the overall printing environment.
Operator (OP) - A person responsible for maintaining a printer on a day-to-day basis, including such tasks as filling empty media trays, emptying full output trays, replacing toner cartridges, etc. Technician (TECH) - A person responsible for repairing a malfunctioning printer, performing routine preventive maintenance, and other tasks that typically require advanced training on the printer internals. An example of a "technician" would be a manufacturer's Field Service representative, or other person formally trained by the manufacturer or similar representative. System Manager (MGR) - A person responsible for configuration and troubleshooting of components involved in the overall printing environment, including printers, print queues and network connectivity issues. This person is typically responsible for ensuring the overall operational integrity of the print system components, and is typically viewed as the central point of coordination among all other Role Models. Help Desk (HELP) - A person responsible for supporting Users in their printing needs, including training Users and troubleshooting Users' printing problems. Asset Manager (AM) - A person responsible for managing an organizations printing system assets (primarily printers). Such a person needs to be able to identify and track the location of printing assets on an ongoing basis. Capacity Planner (CP) - A person responsible for tracking the usage of printing resources on an ongoing basis. An optional related activity might be to acquire printing resource utilization information for the purposes of charging Users for resources used. Installer (INST) - A person or application responsible for installing or configuring printing system components on a local system.
The purpose of these Role Models is to evaluate the relative merit of any given managed object. Whenever a managed object is proposed for inclusion into the specification, discussion on its expected value should be geared around which Role Models benefit from its presence and operation.
Matrix of Requirement Areas and Role Models
To better understand the relationship between the set of defined "Requirements Areas" and the various "Role Models," the following matrix is offered.
It is important to recognize that many of the requirements areas will appear to be applicable to many of the Role Models. However, when considering the actual context of a requirement area, it is very important to realize that often the actual context of a requirement
is such the Role Model can change.
For example, it is obvious that a "System Manager" must be able to submit print jobs to a printer; however, when submitting a print job a person identified as a "System Manager" is actually operating in the context of a "User" in this case; hence, the requirement to submit a print job is not listed as a requirement for a System Manager.
Conversely, while a "User" must be able to remove a job previously submitted to a printer, an "Operator" is often expected to be able to remove any print job from any printer; hence, print job removal is a (subtly different) requirement for both "User" and an "Operator" Role Models.
That being said, I'm sure you'll find some inconsistencies in the following matrix, depending on your particular interpretations of the various requirements areas.
Role Models
Requirement Area USER OP TECH MGR HELP AM CP INST Print job status xx xx xx xx xx Printer capabilities xx xx xx Print job submission xx Print job removal xx xx Notification of events xx xx Printer configuration xx xx Printer consumables xx xx Print job identification xx xx xx xx Internal printer status xx xx xx Printer identification xx xx xx xx xx xx Printer location xx Local system configuration xx xx
Appendix E - Participants
The following people attended at least one meeting of the Printer Working Group meeting; many attended most meetings.
Azmy Abouased - Compaq
Avi Basu - HP
Kerry Bott - Intel
Michael Bringmann - QMS
Ted Brunner - Tektronix
Jeff Case - SNMP Inc.
Rong Chang - IBM
Andy Davidson - Tektronix
Jack Demcak - Jadtech
Andria Demetroulakos - Digital Products
Mike Evans - ESI
Richard Everman - uci.edu
Neal Fischer - Fujitsu
Joseph Flick - HP
Rod Gerhart - Ricoh
Christine Gressley - University of Illinois
Joel Gyllenskog - HP
Tom Hastings - Xerox Corporation
Tim Hathaway - Pacific Data
Mark Held - CMU
Bob Herriot - SUN
Jeff Johnson - Cisco
Jeff Johnson - Microsoft
Theodore Kearley - QMS
Barry Kelman - Microsoft
Charles Kimber - Dataproducts
Andrew Knutsen - SCO
Peter Leunig - Leunig GmbH
Harry Lewis - IBM Pennant Systems
Bill Lott - QMS
Mike MacKay - Xerox
Jay Martin - Underscore
Mike Mayes - Brother
Kevin McBride - Underscore
Stan McConnell - XEROX
Gaylord Miyata - Underscore
Michael Moore - Ricoh
Rudy Nedved - CMU Computer Science Dept.
Pete Neergaard - CMU
Bill Norton - merit.edu
Ron Norton - Printronix
Roman Orzol - Okidata
Alan Perelman - Emulex
Noga Prat - Intel
Dave Roach - Unisys
Marshall Rose - Dover Beach Consulting
John Saperia - BGS Systems Inc.
Mike Scanlon - FTP Software
Avi Schlank - Canon
Ron Smith - TI
Larry Stein - Farpoint
Koji Tashiro - NEC Technologies
Jody Terrill - Extended Systems
Chris Thomas - Intel Products
Mike Timperman - Lexmark
Randy Turner - QMS
Bill Wagner - Digital Products
Steve Waldbusser - CMU
Tim Wells - Microsoft
Craig Whittle - Compaq
Don Wright - Lexmark
Lloyd Young - Lexmark International Inc.
Steve Zilles - Adobe
Jim Zuber - Genoa
Security Considerations
Security issues are not discussed in this memo.
Authors' Addresses
Ronald L. Smith Texas Instruments
Phone: (817) 774-6151 EMail: [email protected]
F.D. Wright Lexmark International
Phone: (606) 232-4808 EMail: [email protected]
Thomas N. Hastings Xerox Corporation
Phone: (310) 333-6413 EMail: [email protected]
Stephen N. Zilles Adobe Systems, Inc.
Phone: (415) 962-4766 EMail: [email protected]
Joel Gyllenskog Hewlett-Packard Company
Phone: (208) 396-4515 EMail: [email protected]
