HP Color laserjet 5500 Product manual

Printer Job Language
Technical Reference Manual
Edition 10
E1097
HP Part No. 5021-0380
Printed in U.S.A. 10/97

Notice
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First Edition —September 1992 (P/N 5961-0512)
Second Edition — May 1993 (P/N 5961-0998)
Third Edition — July 1993 (P/N 5961-0603)
Fourth Edition — May 1994 (P/N 5961-0636)
Fifth Edition — September 1994 (P/N 5961-0704)
Sixth Edition — May 1995 (P/N 5010-3996)
Seventh Edition — October 1995 (P/N 5010-3999)
Eighth Edition — May 1996 (P/N 5961-0938)
Ninth Edition — October 1996 (P/N 5021-0328)
Tenth Edition — October 1997 (P/N 5021-0380)
ii

Inside This Manual
What You Can Learn
From This Manual Printer Job Language (PJL) was developed by
Hewlett-Packard to provide a method for switching printer
languages at the job level, and for status readback between
the printer and the host computer. PJL offers application
programs an efficient way to remotely control
Hewlett-Packard printers. Using PJL, developers can
provide applications with the ability to programmatically
switch printer languages, monitor printer status, request
the printer model and configuration, change control panel
default settings, modify control panel messages, and more.
This manual is written for experienced users such as
application developers and technical support personnel.
Before using PJL commands, programmers should be
familiar with the introductory information in Chapters 1, 2,
and 3, and with the programming tips in Chapter 10. In
addition, users of this manual should be acquainted with
the HP LaserJet printer language (PCL) and with LaserJet
printer features.
Application
Developers This PJL Technical Reference Manual provides developers
with all the information necessary to add PJL to their
applications. Examples are used throughout the manual to
help developers write efficient and properly functioning code.
Technical Support
Personnel This manual provides reference information for network
administrators and other technical support personnel who
manage multi-user systems. PJL provides the potential for
significantly enhancing network printer operation.
Non-Technical Users Non-technical users can use the features of PJL by using
HP Explorer Software, or by using software that supports
PJL. Since improperly used PJL commands can cause
problems in a network situation, inexperienced users are
advised against using PJL commands on any system other
than a dedicated workstation.
iii

Manual
Organization This manual is comprised of ten chapters and four
appendices. The first three chapters introduce you to the
range of PJL features, PJL syntax and format, some rules
about using PJL, and a brief description of each command.
Chapter 4 explores the essential “kernel” commands—those
commands that are part of almost every PJL job. Chapters
5 through 9 each describe a separate group of related
commands. The remaining chapters cover programming
tips and related PJL information. Abrief description of each
chapter is provided below.
Chapter 1. Introduction to PJL
This chapter explains what PJL is, who should use PJL,
and the benefits of using PJL in application programs. It
also covers compatibility with non-PJL printers, which
includes HP LaserJet printers, HP DeskJet printers, and
HP DesignJet plotters and printers.
Chapter 2. PJL Command Syntax and Format
Chapter 2 explains the conventions used to describe PJL
command syntax. The chapter also explains the formats
that PJL commands follow and describes what happens
when the printer receives an illegal command.
Chapter 3. Using PJL
This chapter explains how PJL commands are used,
including the requirements of a PJL job and examples
showing basic PJL command structure. In addition, the
chapter categorizes the PJL commands in this manual by
their functionality, along with a brief command summary.
Chapter 4. Kernel Commands
This chapter explains the three core commands used in
most PJL jobs: the Universal Exit Language (UEL)
command, the COMMENT command, and the ENTER
command. The chapter also describes the related topics of
implicit and explicit printer language switching.
iv

Chapter 5. Job Separation Commands
Chapter 5 describes the JOB and EOJ commands, which
are used in combination to define job boundaries and
provide job-related feedback, such as job completion.
Chapter 6. Environment Commands
This chapter explains setting the printer to a known state.
The DEFAULT, INITIALIZE, RESET, and SET commands
are explained here.
Chapter 7. Status Readback Commands
Chapter 7 describes status readback, the format of status
readback responses, using software tools to interpret status
readback, and the commands associated with status
readback (INQUIRE, DINQUIRE, ECHO, INFO,
USTATUS, and USTATUSOFF). This chapter also covers
the processes involved in job recovery and monitoring the
printer control panel.
Chapter 8. Device Attendance Commands
Chapter 8 describes the commands used to display
messages on the printer control panel: the RDYMSG,
OPMSG, and STMSG commands.
Chapter 9. PJL File System Commands
Chapter 9 describes the commands used for managing a
printer-based disk drive, or other printer-based mass
storage. The commands include FSAPPEND, FSDIRLIST,
FSINIT, FSMKDIR, FSQUERY, FSUPLOAD, FSDOWN-
LOAD, and FSDELETE. These commands provide the
capability to initialize the mass storage, make directories,
list directories, and download, upload, delete, and
append files.
Chapter 10. Programming Tips
This chapter demonstrates how to create well-formed jobs
and discusses common problems and things to watch for
v

when using PJL commands. Samples are included to
demonstrate different types of applications.
Appendix A. Product-Specific Feature Support
This chapter lists all of the PJL commands and shows
which commands are supported by the different PJL
printers. It also shows which environment variables are
supported, and includes printer-specific information about
several PJL printers.
Appendix B. PJL Command Summary
This appendix lists all of the PJL commands in alphabetical
order, and shows the format of each command.
Appendix C. Programming Examples
Appendix C shows an example of a PJL job in both the
generic format used in the rest of this manual, and in the
C programming language. The appendix also includes a
batch file that modifies the control panel display message
during job processing.
Appendix D. Status Codes
This appendix describes the status code information
available when using status readback.
Index
This manual includes an index for easy access to PJL
information.
Quick Index
The inside back cover shows an alphabetical listing of each
PJL command, with accompanying page numbers for
accessing information about specific commands.
vi

Related Documents The following documents provide related information about
Hewlett-Packard PCL 5 printers.
PCL 5 Printer Language Technical Reference Manual
The PCL 5 Printer Language Technical Reference Manual
provides a description of the printer command language
that controls PCL 5 printers. The manual provides
explanations of each PCL command, and examples
demonstrating how the commands are used to control
the printer. A large portion of the manual is devoted to
HP-GL/2, the vector-based graphics language that is part
of all PCL 5 printers.
PCL 5 Comparison Guide
This document provides printer-specific information on
paper handling, internal fonts, PCL command support,
and control panel information. It identifies feature
differences between the PCL 5 printers, and how the
printers implement the commands described in the
PCL 5 Printer Language Technical Reference Manual.
PCL/PJL Technical Quick Reference Guide
This booklet is designed to provide quick access to the
syntax of each PCL and PJL command. The commands are
grouped by their function so that those familiar with PCL
and/or PJL can find the syntax of a specific command
without opening the manual.
vii

Manual
Conventions This manual uses the following conventions:
Items in italics indicate names of variables.
Items in UPPERCASE letters indicate PJL command
names and words you type verbatim. PJL command
names referred to in text are also in uppercase.
Items in square brackets [ ] indicate optional
parameters. The brackets themselves are not typed.
Items in brackets < > indicate a control code character
(for example, <CR> for carriage return) or a special
defined identifier.
A vertical bar (|) indicates there is more than one
optional parameter.
Note Throughout this manual, the term printer also includes any
relevant DesignJet plotters and printers.
viii

Contents
Inside This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Manual Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
1 Introduction to PJL
The Benefits of PJL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Who Should Use PJL? . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Compatibility With Non-PJL Printers . . . . . . . . . . . . . . . 1-4
2 PJL Command Syntax and Format
Syntax Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Format of PJL Commands . . . . . . . . . . . . . . . . . . . . . . . . 2-4
PJL Syntax Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Types of Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Processing Invalid Commands . . . . . . . . . . . . . . . . . . . . . 2-9
3 Using PJL
Overview of How Commands are Used . . . . . . . . . . . . . . 3-1
PJL Job Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Some Sample PJL Jobs . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Command Groupings by Functionality . . . . . . . . . . . . . . 3-5
4 Kernel Commands
Universal Exit Language (UEL) Command. . . . . . . . . . . 4-2
ENTER Command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
COMMENT Command . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Methods of Printer Language Switching . . . . . . . . . . . . . 4-8
5 Job Separation Commands
JOB Command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
EOJ Command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
PJL Job Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Password Protection of Default Feature Settings . . . 5-10
Control Panel Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Disk Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Contents-1

Job Cancellation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Start of Job Notification . . . . . . . . . . . . . . . . . . . . . . . . 5-14
End of Job Notification . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
Job Cancellation Unsolicited Status . . . . . . . . . . . . . . 5-16
6 Environment Commands
Print Environments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Changing Environment Settings . . . . . . . . . . . . . . . . . . . . 6-5
Environment Summary . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
PJL Reset Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Key Points to Remember About Environments. . . . . . . . . 6-9
PJL Environment Variables . . . . . . . . . . . . . . . . . . . . . . . 6-10
General PJL Environment Variables. . . . . . . . . . . . . . 6-11
Port-Specific Variables (LaserJet 4PJ Only) . . . . . . . . 6-22
PCL-Specific Variables . . . . . . . . . . . . . . . . . . . . . . . . . 6-23
PostScript-Specific Variables . . . . . . . . . . . . . . . . . . . . 6-27
ESC/P-Specific Variables . . . . . . . . . . . . . . . . . . . . . . . 6-28
Setting the Printer to a Desired State. . . . . . . . . . . . . . . 6-30
DEFAULT Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32
INITIALIZE Command. . . . . . . . . . . . . . . . . . . . . . . . . . . 6-36
RESET Command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-39
SET Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-42
7 Status Readback Commands
Printer Status Requirements . . . . . . . . . . . . . . . . . . . . . . . 7-2
Synchronizing Status Readback Responses . . . . . . . . . . . 7-2
Format of Status Readback Responses . . . . . . . . . . . . . . . 7-3
INQUIRE Command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
DINQUIRE Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
ECHO Command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14
INFO Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16
USTATUS Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
USTATUSOFF Command. . . . . . . . . . . . . . . . . . . . . . . . . 7-43
Job Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44
Sending the Initial Job . . . . . . . . . . . . . . . . . . . . . . . . . 7-44
After Job Failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-45
8 Device Attendance Commands
RDYMSG Command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
OPMSG Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
STMSG Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
Contents-2

9 PJL File System Commands
FSAPPEND Command . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
FSDIRLIST Command . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4
FSDELETE Command . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6
FSDOWNLOAD Command. . . . . . . . . . . . . . . . . . . . . . . . 9-7
FSINIT Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-8
FSMKDIR Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9
FSQUERY Command . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10
FSUPLOAD Command . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12
File System Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-14
10 Programming Tips for Using PJL
PJL Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2
Print Data Generators. . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3
Printer Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
Spoolers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10
Requesting Printer Status . . . . . . . . . . . . . . . . . . . . . . 10-18
Using Status Readback in a Multi-User System . . . . . 10-18
A Product-Specific Feature Support
PJL Feature Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
PJL Environment Variable Support. . . . . . . . . . . . . . . . . A-5
HP LaserJet IIISi Comments . . . . . . . . . . . . . . . . . . . . . A-28
Comments about HP LaserJet Printers. . . . . . . . . . . . . A-29
LaserJet Printers With Reduced- Function
Control Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-35
Color LaserJet Printer Comments . . . . . . . . . . . . . . . . . A-36
HP DeskJet 1200C
and 1600C Printer Family Comments . . . . . . . . . . . . . . A-36
HP LaserJet 5Si/ 5SiMx/5Si Mopier Comments . . . . . . A-40
HP LaserJet 5Si Mopier Comments. . . . . . . . . . . . . . . . A-41
HP LaserJet 4000 Series Comments . . . . . . . . . . . . . . . A-43
Contents-3

B PJL Command Summary
C Programming Examples
D PJL Status Codes
Status Code Groupings. . . . . . . . . . . . . . . . . . . . . . . . . D-1
Informational Messages (10xxx). . . . . . . . . . . . . . . . . . D-2
Background Paper Loading (11xyy) . . . . . . . . . . . . . . . D-4
Background Paper Tray Status (12xyy). . . . . . . . . . . . D-6
Output Bin Status (15xxy) . . . . . . . . . . . . . . . . . . . . . . D-6
PJL Parser Errors (20xxx) . . . . . . . . . . . . . . . . . . . . . . D-7
PJL Parser Warnings (25xxx). . . . . . . . . . . . . . . . . . . . D-8
PJL Semantic Errors (27xxx) . . . . . . . . . . . . . . . . . . . . D-9
Auto-Continuable Conditions (30xxx) . . . . . . . . . . . . D-11
PJL File System Errors (32xxx). . . . . . . . . . . . . . . . . D-13
Potential Operator Intervention Conditions (35xxx) D-14
Operator Intervention Conditions (40xxx). . . . . . . . . D-16
Foreground Paper Loading (41xyy) . . . . . . . . . . . . . . D-18
Paper Jam Messages (42xyy—LJ 5Si/5SiMx only) . . D-20
Optional Paper Handling Device Messages (43xyy) . D-22
LaserJet 4000 Series Paper Jam Messages (44xyy) . D-23
Hardware Errors (50xxx) . . . . . . . . . . . . . . . . . . . . . . D-24
Glossary
Index
Quick Index
Contents-4

1
Introduction to PJL
What is PJL? Hewlett-Packard’s Printer Job Language (PJL) was
developed to give software applications more job-level
printer control, and to provide printer status information to
applications. PJL provides for the special needs of networks
and other multi-user systems, in addition to enabling
applications to simulate control panel functions that
previously could not be controlled without pressing control
panel keys.
For the HP printers (HP LaserJet, HP DeskJet, and HP
DesignJet) that support it, PJL allows job-level control that
cannot be accomplished with PCL, PostScript, or other
printer languages. To provide this control, PJL functions
“above” the level of PCL and other printer languages,
providing four major functions:
Printer language switching between jobs
Job separation
Printer configuration
Status readback from the printer to the host computer
Introduction to PJL 1-1

Note Some HP printers, such as the LaserJet 4L, 5L, or 6L
printers, do not support printer language switching or job
separation. See Appendix A for feature support information.
Using PJL, software applications can request information
such as printer model, configuration, and status. PJL also
can be used to change control panel settings and modify the
message displayed on the control panel, or change feature
settings in printers without a control panel, such as the HP
LaserJet 6L printer. For those printers supporting more
than one printer language, applications can print one job
using PCL, and then print the next job using PostScript or
another printer language—without any operator
intervention.
Figure 1-1. PJL Resides Above Other Printer Languages
1-2 Introduction to PJL

The Benefits of PJL Listed below are some of the benefits PJL provides:
Programmatic printer language switching. PJL
provides fully reliable switching between printer
languages, such as PCL, Epson, IBM ProPrinter, and
PostScript, directly from within applications.
Printer status readback.Printer model information,
configuration, printer feature settings, and other printer
status information can be obtained using PJL.
Programmatic front panel control. Control panel
settings, including control panel messages, can be
changed remotely.
Ease of use. All PJL commands except the Universal
Exit Language (UEL) command consist of printable
characters and plain-English words or abbreviated
words. Learning to use PJL can be accomplished by
reading the first three chapters of this manual and
following the examples provided in the text.
Better spooler control. PJL allows spoolers improved
printer management, especially in a network
environment.
Who Should Use
PJL? PJL is designed to be used by experienced programmers,
such as software application developers and technical
support personnel. Although PJL is not complicated, it is a
powerful tool, and should be used only by experienced users
who can create jobs that cause no adverse effects on other
jobs in a shared environment. Applications containing PJL
commands used as described in this manual provide users
with smooth transitions between print jobs. Conversely,
improperly used PJL commands can create problems in
multi-user printing environments.
Introduction to PJL 1-3

Compatibility With
Non-PJL Printers Because all HP printers do not support PJL, it is important
to know what happens when PJL commands are sent to a
non-PJL printer.
PJL commands are recognized by the following HP printers:
LaserJet IIISi, 4Si, 4SiMx, 5Si, 5SiMx, 5Si Mopier
LaserJet 4000 series
LaserJet 4V, 4MV
LaserJet 4, 4 Plus, 4M, 4M Plus, 5, 5M
LaserJet 4L, 4ML, 4LJ Pro, 4LC, 5L, 6L
LaserJet 4P, 4MP, 4PJ, 5P, 6P, 6MP
Color LaserJet, Color LaserJet 5, 5M
DeskJet 1200C, 1600C
DesignJet Family
PaintJet XL300
The printers listed above are designed to handle any PJL
command, even those not supported by that particular
printer. On the other hand, all PCL 4 printers, and all PCL
5 printers not listed above, do not support PJL. When PJL
commands are sent to a non-PJL printer, the results differ
depending on which commands are used and which printer
language is used. The following paragraphs explain what
happens when PCL and PostScript jobs containing PJL
commands are sent to non-PJL printers.
Note For best results, do not send PJL commands to a non-PJL
printer.
PCL Jobs When non-PJL printers receive PCL jobs, any PJL
commands that precede the initial PCL printer reset
command (<ESC>E) print as ASCII text. When the initial
printer reset command is received, it causes a page eject
and the PCL job begins on a new page. The end result is a
page or more of PJL commands followed by the PCL job,
1-4 Introduction to PJL

and possibly followed by more PJL commands. The PCL job
should print as it would without any PJL commands, as
long as the PCL portion of the job begins and ends with a
PCL printer reset command. However, a page of PJL
commands printed before and probably after the PCL job
can be expected.
For those PCL applications that do not begin with a PCL
printer reset command (or another PCL command that
forces a page eject when preceded by printable data), the
PJL commands are printed as ASCII text on the same page
as the PCL job. A good portion of the job may be unusable
due to unpredictable page breaks and overprinted text on
the first page.
PostScript Jobs When non-PJL printers are running in PostScript mode,
PJL commands cause a PostScript error and prevent the job
from printing. Pressing the printer’s Continue key removes
the error message, but the error causes the printer to
discard the PostScript job.
Other Printer
Languages PJL code is interpreted differently when running different
printer languages on non-PJL printers. To avoid printing
problems, do not use PJL commands when printing to any
non-PJL printer, regardless of which printer language is
used.
Introduction to PJL 1-5

1-6 Introduction to PJL

2
PJL Command Syntax and Format
Introduction This chapter explains the conventions used to describe PJL
command syntax. This chapter also describes the several
different formats that PJL commands may take, giving
examples of each. The chapter provides an explanation of
how PJL-compatible printers handle illegal commands.
PJL Command Syntax and Format 2-1

Syntax
Conventions The following syntax conventions are used to describe the
PJL commands in this manual:
variables Items in italics indicate names of variables.
COMMANDS Items in uppercase letters indicate PJL command names and words
that you type verbatim. PJL command names referred to in text are
also in uppercase.
[ ] Items in brackets [ . . . ] indicate optional parameters. The brackets
themselves are not typed.
< > Identifies a control code character, such as <CR> for carriage return,
or a special defined identifier. The table on the next page lists the
control codes and special identifiers used in the PJL syntax. (The
< and > symbols themselves are not typed, but are replaced with the
control codes or special identifiers they represent. For example,
replace <FF> with the form feed character [ASCII 12].)
~This character indicates that the current line of code is a continuation
of the previous line. For example, “This text belongs on the
~same line.”
| A vertical bar indicates there is more than one optional parameter,
such as LPARM and IPARM: [LPARM : personality | IPARM : port].
2-2 PJL Command Syntax and Format