|
Network Working Group Request for Comments: 1759 Category: Standards Track |
R. Smith Texas Instruments F. Wright Lexmark International T. Hastings Xerox Corporation S. Zilles Adobe Systems, Inc. J. Gyllenskog Hewlett-Packard Company March 1995 |
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.
1. Introduction
1.1 Network Printing Environment
1.2 Printer Device Overview
1.3 Categories of Printer Information
1.3.1 Descriptions
1.3.2 Status
1.3.3 Alerts
2. Printer Model
2.1 Overview of the Printer Model
2.2 Printer Sub-Units
2.2.1 General Printer
2.2.2 Inputs
2.2.3 Media
2.2.4 Outputs
2.2.5 Finishers
2.2.6 Markers
2.2.7 Media Paths
2.2.8 System Controller
2.2.9 Interfaces
2.2.10 Channels
2.2.11 Interpreters
2.2.12 Console
2.2.13 Alerts
2.2.13.1 Status and Alerts
2.2.13.2 Overall Printer Status
2.2.13.2.1 Host MIB Printer Status
2.2.13.2.2 Sub-unit Status
2.2.13.3 Alert Tables
2.2.13.4 Alert Table Management
2.3 Read-Write Objects
2.4 Enumerations
2.4.1 Registering Additional Enumerated Values
3. Objects from other MIB Specifications
3.1 System Group objects
3.2 System Controller
3.3 Interface Group objects
4. Textual Conventions
5. The General Printer Group
5.1 The Cover Table
5.2 The Localization Table
5.3 The System Resources Tables
6. The Responsible Party group
7. The Input Group
8. The Extended Input Group
9. The Input Media Group
10. The Output Group
11. The Extended Output Group
12. The Output Dimensions Group
13. The Output Features Group
14. The Marker Group
15. The Marker Supplies Group
16. The Marker Colorant Group
17. The Media Path Group
18. The Channel Group
18.1 The Channel Table and its underlying structure
18.2 The Channel Table
19. The Interpreter Group
20. The Console Group
20.1 The Display Buffer Table
20.2 The Console Light Table
21. The Alerts Group
21.1 The Alert Time Group
22. Appendix A - Glossary of Terms
23. Appendix B - Media Size Names
24. Appendix C - Media Names
25. Appendix D - Roles of Users
26. Appendix E - Participants
27. Security Considerations
28. Authors' Addresses
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|<----------------+
+=============+ +-----------------+
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.
Information about printers is classified into three basic categories, descriptions, status and alerts.
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 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.
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.
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)|
+----------+ +----------+
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.
A printer is composed of 13 types of sub-units, called groups. The following sections describe the different types of sub-units.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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:
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.
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 }
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).
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.
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:
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.
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:
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 (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.
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.
This section lists the objects from other IETF MIB specifications that are mandatory for conformance to this Printer MIB specification.
All objects in the system group of MIB-II (RFC 1213) must be implemented.
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.
All objects in the Interfaces Group of MIB-II (RFC 1213) shall be implemented.
Printer-MIB DEFINITIONS ::= BEGIN
" Steven Waldbusser
Postal: Carnegie Mellon University
4910 Forbes Ave
Pittsburgh, PA, 15213
Tel: 412-268-6628
Fax: 412-268-4987
E-mail: waldbusser@cmu.edu"
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:
-- 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 }
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 }
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
}
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 }
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 }
-- 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 }
SYNTAX SEQUENCE OF PrtCoverEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of the covers and interlocks of the printer."
::= { prtCover 1 }
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
}
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 }
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 }
-- 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 }
SYNTAX SEQUENCE OF PrtLocalizationEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The available localizations in this printer."
::= { prtLocalization 1 }
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
}
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 }
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 }
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 }
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.
SYNTAX SEQUENCE OF PrtStorageRefEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
::= { prtGeneral 2 }
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
}
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 }
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 }
SYNTAX SEQUENCE OF PrtDeviceRefEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
::= { prtGeneral 3 }
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
}
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 }
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.
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 }
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 }
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 }
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 }
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
}
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 }
-- 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 }
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 }
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 }
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 }
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 }
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 }
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 }
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 }
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 }
SYNTAX SubUnitStatus
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current status of this input sub-unit."
::= { prtInputEntry 11 }
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.
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The name assigned to this input sub-unit."
::= { prtInputEntry 13 }
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The vendor name of this input sub-unit."
::= { prtInputEntry 14 }
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The model name of this input sub-unit."
::= { prtInputEntry 15 }
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The version of this input sub-unit."
::= { prtInputEntry 16 }
SYNTAX OCTET STRING (SIZE(0..32))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The serial number assigned to this input sub-unit."
::= { prtInputEntry 17 }
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 }
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.
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 }
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 }
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 }
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 }
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 }
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 }
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
}
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 }
-- 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 }
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 }
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 }
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 }
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.
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The name assigned to this output sub-unit."
::= { prtOutputEntry 7 }
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The vendor name of this output sub-unit."
::= { prtOutputEntry 8 }
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The name assigned to this output sub-unit."
::= { prtOutputEntry 9 }
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The version of this output sub-unit."
::= { prtOutputEntry 10 }
SYNTAX OCTET STRING (SIZE(0..63))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The serial number assigned to this output sub-unit."
::= { prtOutputEntry 11 }
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 }
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.
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 }
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 }
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 }
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 }
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.
-- 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 }
-- 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 }
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 }
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 }
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 }
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 }
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.
SYNTAX SEQUENCE OF PrtMarkerEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
""
::= { prtMarker 2 }
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
}
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 }
-- 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 }
-- 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}
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 }
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 }
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 }
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 }
-- 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 }
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 }
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 }
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 }
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 }
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 }
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 }
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 }
SYNTAX SEQUENCE OF PrtMarkerSuppliesEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of the marker supplies available on this printer."
::= { prtMarkerSupplies 1 }
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
}
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 }
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 }
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 }
-- 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 }
-- 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."
::= {