HP 5100tn Printer Job Language - Technical Reference Manual - Page 29

3 Using PJL Introduction This chapter describes how PJL commands are used. After reading this chapter, you can create basic jobs and perform simple PJL tasks, such as printer language switching and changing some PJL feature settings. To give you an understanding of where to look for more PJL information, this chapter explains how the manual categorizes PJL commands into six groups of related commands. Each command has a brief description of its function to help familiarize you with the PJL language. Note Each PJL printer supports a different set of PJL commands. See Appendix A for printer-specific information. Overview of How Commands are Used As previously explained, PJL resides "above" other printer languages such as PCL and PostScript. PJL commands encapsulate the printer language jobs, as shown in Figure 3-1. The Universal Exit Language (UEL) command allows the printer to alternate between interpreting PJL commands and printer language commands. (Although PCL and PostScript are shown in Figure 3-1, other printer languages can be involved.) PJL Code PCL Job PJL Code PostScript Job PJL Code Figure 3-1. PJL Commands Encapsulate Print Jobs Using PJL 3-1