HP PCL/PJL reference - Printer Job Language Technical Reference Manual

4-4 Kernel Commands EN
ENTER Command
The ENTER command enables the specified personality (such as
PCL or PostScript). Use this command to select the printer language
for printing subsequent data.
Syntax:
@PJL ENTER LANGUAGE = personality [<CR>]<LF>
Parameters:
• personality — The personality variable must be set to PCL,
POSTSCRIPT, ESCP, or one of the other supported
personalities. Personalities besides PCL and PostScript can
be added to some printers by plugging in additional hardware,
such as cartridges or ROM SIMMs. If your application handles
status readback, you can request a list of all valid personalities
present in the printer (see the “INFO CONFIG” section in
Chapter 7).
Comments:
The ENTER command must be positioned immediately before any
personality-specific data. The selected personality begins parsing
immediately after the <LF> that terminates the ENTER command.
If the printer does not receive the ENTER command requesting a
specific printer language, the printer enables the default printer
language as set from the control panel (or if the printer supports
context switching, such as the HP Color LaserJet 4500 series, 8500
series, 8100 series, LaserJet 2100 series, 4000 series, 5000 series,
8000 series, 8100 series, 5Si, 5SiMX, 5Si Mopier, 5, 5M, 5P, 6P, and
6MP printers, it samples the data stream if personality is set to
AUTO—see the “Methods of Printer Language Switching” later in this
chapter).
Parameter Range
personality PCL, POSTSCRIPT, ESCP,
Others *
* Other personalities might be supported.