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

Glossary-6 EN
Printer Language
A set of syntax and semantic rules used to control a printer. PCL and
PostScript are both printer languages—they both contain commands
that enable the user to control where marks are printed on a page.
Ready Message
A ready message is displayed on the control panel display when no
error conditions are present. When errors occur, an error message
replaces the ready message until the situation is corrected or the
printer auto-continues. The PJL RDYMSG command is used to
specify a ready message to replace the “00 READY” message.
Secure PJL Job
A “secure” PJL job is a job that contains the correct password in the
JOB command. See the “PJL Job Security” section in Chapter 5 for
more information.
Solicited Status
Solicited status is printer status information that is specifically
requested. For example, the command @PJL INFO ID solicits the
printer's ID. The printer responds to solicited status messages as they
are received. See “unsolicited status.”
Status Readback
Sending printer status information from the printer to the host
computer.
Universal Exit Language (UEL) Command
A PJL command, understood by all LaserJet personalities, that
prompts the active personality to finish processing the current job and
exit the personality. PJL also recognizes the UEL command and,
when received, PJL discards any unprocessed partial PJL command
and prepares to accept the next PJL command.