Also langPS(6), not langPD(6).
>Date: Thu, 13 Mar 1997 12:31:03 PST
>To: email@example.com, firstname.lastname@example.org, email@example.com
>From: Tom Hastings <firstname.lastname@example.org>
>Subject: PMP> How should a PDF document be indicated in the Printer MIB, Job
> Monitoring MIB and IPP?
>Currently there is no enum registered for a PDF document-format for use
>in the Printer MIB, the Job Monitoring MIB, and IPP.
>How should a PDF document be indicated in the Printer MIB, Job Monitoring
>MIB and IPP?
>IPP is part of PostScript level 3, I understand, so that the PostScript
PDF [I meant to say - TNH]
>enum langPD(6) with a level of "3" in prtInterpreterLangLevel in the
langPS(6) [I meant to say - TNH]
>Printer MIB could indicate a Printer that is capabile of consuming a PDF
>file. But what about the Job Monitoring MIB where we don't have level
>and IPP where we don't have level?
>Also it seems that a Printer might be able to consume PDF, but not any
>PostScript level 3. Finally, in a document repository, it would be useful
>to know that a document is a PDF file, so that a PDF reader can be used
>to image it.
>We've discussed at several Printer Working Group meetings the idea of
>registering combinations of language family and level in order to give them
>distinct enums. So we could register PS1, PS2, PS3, and PDF. Also PCL5e,
>PCL5, and PCL4 as separate enums for use when a particular level is important.
>And we could keep the current langPCL(3) and langPS(6) for use when level
>is not important, or when the level is specified by other attributes,
>such as in the Printer MIB.
>The advantage of keeping the family separate from the level, is that an old
>application would still have a clue that a new level of document is really
>an upwards compatible level with the enum that it understands, where as if
>we register a new enum for each level, the old application will have no clue
>that the document is PostScript.
>For IPP, we might have a string, in which the family and level are syntactially
>distinguished, so that an old application could separate the family from
>In the Job Monitoring MIB we have the Printer MIB enum. But we might
>change to the text string that has both family and level, if that is the
>way that IPP goes. Then we wouldn't need to register the different levels
>of PostScript and PCL.
>However, we may still want to register a PDF enum, since it is such a
>common document format these days.
>We need some help here from Adobe and HP on what is the best course to
>follow for the Printer MIB, Job Monitoring MIB, and IPP.
>I'd like to see this issue come up in the PWG agenda, since it affect
>all three PWG progjects, if we can't resolve this via e-mail.
>See the current 1.5 or 1.6 IPP Model and Semantics.
>Here is the extracted text from that:
>18.104.22.168 document-format (type2Enumformat)
>This job attribute identifies the document format of this document, and may
>be a per-document attribute.
>This printer attribute indicates default value. It also indicates the values
>of the attribute supported by this printer and the states of readiness for
>each value. One possible supported and default value is "auto-sense".
>The following standard values have been reviewed with the Printer Working
>Group and are registered with IANA as part of the IETF Printer MIB project.
>The token value assigned by the PWG starts with the four letters: "lang", in
>order to follow SNMP ASN.1 rules that all enum symbols shall start with a
>lower case letter. The token values in IPP shall be the same as the IANA
>token values, with the "lang" removed. The MIB (integer) value is included
>here for reference only, the MIB value shall not be used in IPP; the token
>value shall be used instead:
>Token Value MIB value Description
>PCL 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
>HPGL 4 Hewlett-Packard Graphics Language. HP-GL is a registered trademark
>of Hewlett-Packard Company.
>PJL 5 Peripheral Job Language. Appears in the data stream between data
>intended for a page description language. Hewlett-Packard Co.
>PS 6 PostScript Language (tm) Postscript - a trademark of Adobe Systems
>Incorporated which may be registered in certain jurisdictions
>IPDS 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
>PPDS 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.
>EscapeP 9 Epson Corp.
>DDIF 11 Digital Document Interchange Format Digital Equipment Corp., Maynard MA
>Interpress 12 Xerox Corp.
>ISO6429 13 ISO 6429. Control functions for Coded Character Sets (has ASCII
>control characters, plus additional controls for character imaging devices.)
>ISO Standard, Geneva, Switzerland
>LineData 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,
>MODCA 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
>REGIS 16 Remote Graphics Instruction Set, Digital Equipment Corp., Maynard MA
>SCS 17 SNA Character String Bi-directional print data stream for SNA LU-1
>mode of communications IBM
>SPDL 18 ISO 10180 Standard Page Description Language ISO Standard
>TEK4014 19 Tektronix Corp.
>IGP 21 Printronix Corp.
>CodeV 22 Magnum Code-V, Image and printer control language used to control
>impact/dot- matrix printers. QMS, Inc., Mobile AL
>DSCDSE 23 DSC-DSE: Data Stream Compatible and Emulation Bi-directional print
>data stream for non-SNA (DSC) and SNA LU-3 3270 controller (DSE)
>WPS 24 Windows Printing System, Resource based command/data stream used by
>Microsoft At Work Peripherals. Developed by the Microsoft Corporation.
>LN03 25 Early DEC-PPL3, Digital Equipment Corp.
>QUIC 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.
>CPAP 28 Common Printer Access Protocol Digital Equipment Corp
>DecPPL 29 Digital ANSI-Compliant Printing Protocol (DEC-PPL) Digital
>SimpleText 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, Switzerlan
>NPAP 31 Network Printer Alliance Protocol (NPAP). This protocol has been
>superseded by the IEEE 1284.1 TIPSI standard. (ref. LangTIPSI(49)).
>DOC 32 Document Option Commands, Appears in the data stream between data
>intended for a page description . QMS, Inc
>imPress 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.
>Pinwriter 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
>NPDL 35 Page printer for Japanese market. NEC
>NEC201PL 36 Serial printer language used in the Japanese market. NEC
>Automatic 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.
>Pages 38 Page printer Advanced Graphic Escape Set IBM Japan
>LIPS 39 LBP Image Processing System
>TIFF 40 Tagged Image File Format (Aldus)
>Diagnostic 41 A hex dump of the input to the interprete
>PSPrinter 42 The PostScript Language used for control (with any PDLs) Adobe
>CaPSL 43 Canon Print Systems Language
>EXCL 44 Extended Command Language Talaris Systems Inc
>LCDS 45 Line Conditioned Data Stream Xerox Corporatio
>XES 46 Xerox Escape Sequences Xerox Corporation
>PCLXL 47 Printer Control Language. Extended language features for printing,
>and printer control. Technical reference manual # TBD. Hewlett-Packard Co.
>ART 48 Advanced Rendering Tools (ART). Page Description language originally
>developed for the Laser Press printers. Tehnical reference manual: "ART IV
>Reference Manual", No F33M. Fuji Xerox Co., Ltd.
>TIPSI 49 Transport Independent Printer System Interface (ref. IEEE Std.
>Prescribe 50 Page description and printer control language. It can be
>described with ordinary ASCII characters. Technical reference manual:
>"PRESCRIBE II Programming Manual"
>LinePrinter 51 A simple-text character stream which supports the control
>codes LF, VT, FF and CR plus Centronics or Dataproducts Vertical Format Unit
>(VFU). language is commonly used on many older model line and matrix printers.
>IDP 52 Imaging Device Protocol Apple Computer.
>XJCL 53 Xerox Corp.