HP PCL/PJL reference - Printer Job Language Technical Reference Manual
iv  EN
Manual Organization
This manual is comprised of eleven 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 10 each describe a separate group of 
related commands. The remaining chapters cover programming tips 
and related PJL information. A brief 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 older models of 
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.










