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Printer Job Language Technical Reference Manual Copyright and License © 2003 Hewlett-Packard Development Company, LP All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. Trademarks Adobe, PostScript, and the PostScript logo are trademarks of Adobe Systems Incorporated, which may be registered in certain jurisdictions. AppleTalk is a registered trademark of Apple Computer, Inc. Centronics is a U.S. registered trademark of Centronics Data Computer Corporation. HP Explorer Software is a trademark and PCL and Resolution Enhancement are registered trademarks of Hewlett-Packard Company. Epson is a registered trademark of Epson America, Inc. Harvard Graphics is a registered trademark of Software Publishing Corporation. IBM is a registered trademark and ProPrinter is a trademark of International Business Machines Corporation. Lotus and 1-2-3 are registered trademarks of Lotus Development Corporation. Microsoft is a registered trademark and Word, Windows, MS-Mincho, and MSGothic are trademarks of Microsoft Corporation. ESC/P is a trademark of Seiko-Epson Corporation. WordPerfect is a registered trademark of Corel Corporation or Corel Corporation Limited. The information contained in this document is subject to change without notice. Publication Number: 5021-0380 Edition 12, 6/2003 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 11. 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 Exp