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

EN Product-Specific Feature Support A-63
HP Color LaserJet 4500 Series Comments
This section describes some of the distinguishing PJL features of the
HP Color LaserJet 4500 series printers.
The JOBID variable is added to enable or disable the job ID
information returned in the status readback at the start and
end of jobs.
HP Color LaserJet 4500 series printers may remove the JOB
DISPLAY = "display text" message from the control
panel display before the last page reaches the output bin.
The control panel display messages and status readback text
can now be set to the Japanese language.
The OUTTONER variable determines how the printer
processes a toner-out event. If this variable is set to STOP,
printing will stop when a toner-out event occurs. If this variable
is set to CONTINUE, a toner-out message will be generated,
but printing will continue. The default value for this variable is
STOP.
The PLANESINUSE variable defines the number of planes of
data in a job. A value of 1 indicates a monochrome job, while a
value of 3 indicates a color job. The default value is 3.
This printer adds some new POWERSAVETIME values (1,
240, 480 minutes), and does not support the 15 and 180
minute values.