HP LaserJet 4000 Printer series - Manual (Page 166)

EN
Printer Commands D-1
D
Printer Commands
Overview
Most software applications do not require you to enter printer
commands. See your computer and software documentation to find
the method for entering printer commands, if needed.
Note The table at the end of this appendix contains commonly used
PCL 5e commands (page D-5). For a complete listing and
explanation of how to use PCL, HP-GL/2, and PJL commands, order
the
PCL 5/PJL Technical Reference Documentation Package
(page 8).
To receive more information about printer commands via fax, call
HP FIRST (Fax Information Retrieval Service Technology) and
request an index for HP LaserJet printers. (See the HP Support
pages at the front of this user’s guide.)
PCL PCL printer commands tell the printer which tasks to perform or
which fonts to use. This appendix provides a quick reference for
users who are already familiar with PCL command structure.
•
The PCL 5e printer commands are backward-compatible with
previous versions of PCL.
•
The PCL 6 printer commands take full advantage of the printer’s
features.
HP-GL/2 The printer has the ability to print vector graphics using the
HP-GL/2 graphics language. Printing in the HP-GL/2 language
requires that the printer leave PCL language and enter HP-GL/2
mode, which can be done by sending the printer PCL code. Some
software applications switch languages through their drivers.
PJL HP’s Printer Job Language (PJL) provides control above PCL and
other printer languages. The four major functions provided by PJL
are: printer language switching, job separation, printer
configuration, and status readback from the printer. PJL
commands may be used to change printer default settings.