HP LaserJet 4050 Printer series - Manual (Page 233)

EN
Printer Commands D-1
D
Printer Commands F
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-6). For a complete listing and
explanation of how to use PCL 5e, HP-GL/2, and PJL commands,
download the
PCL 5e /PJL Technical Reference Documentation
Package (page 11).
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 Customer
Care Service and Support pages at the front of this user’s guide.)
PCL 5e PCL 5e 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 5e command structure.
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 5e language and enter HP-GL/2 mode,
which can be done by sending the printer PCL 5e code. Some
software applications switch languages through their drivers.
PJL HP’s Printer Job Language (PJL) provides control above PCL 5e
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.