HP-GL/2 Commands

HP-GL/2, vector graphic commands are two letter mnemonic codes designed to remind you of the function name (such as IN for Initialize). Following the two letter mnemonic may be one or more parameters, which identify details of how to process the command. For additional information on HP-GL/2 commands, refer to Chapters 17 through 23.

PJL Commands

PJL (Printer Job Language) commands provide a different type of printer control. Unlike PCL and HP-GL/2, which control the placement of dots on the printed page, PJL supplies job-level control. One of the main features PJL offers is the ability to switch printer languages (personalities) between jobs. For example, applications supporting PJL can print one job using PCL, and then print the next job using PostScript or another printer language, without any operator intervention.

PJL also provides two-way communications with the printer. For example, PJL can request information from the printer such as printer model, configuration, printer status, and job status. PJL also can be used to change the printer’s control panel settings and modify the message displayed on the control panel.

The PJL language is designed to be used by application developers and technical support personnel only.

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HP 5961-0509 manual HP-GL/2 Commands, PJL Commands, 4Introduction to HP PCL