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

8-2 Device Attendance Commands EN
RDYMSG Command
The RDYMSG command replaces the control panel's “ready”
message with the specified message. Use the RDYMSG command to
modify the displayed message while keeping the printer online.
Syntax:
@PJL RDYMSG DISPLAY = "message" [<CR>]<LF>
Parameters:
• DISPLAY = "message" — The variable message can be any
combination of printable characters (except quotation marks,
character 34) and spaces, with a limit of 1 line of 16 characters
(see “Comments” below). The message variable is a string
and must be enclosed in double quotes as shown in the
command syntax.
Comments:
Since the RDYMSG command leaves the printer online, it can be
used to display the name of the person printing the current job, or
other pertinent information, while a job is printing. It also can be used
in network environments to display the name of the printer.
Note For the HP LaserJet 4000, 5000, 8000, 8100, Color LaserJet 4500,
and 8500 printers (and newer), use the JOB DISPLAY="display
text" method to display a message on the front panel during a
specific job. For these printers, RDYMSG only replaces the lowest
priority message, which is typically only the READY message.
The command @PJL RDYMSG DISPLAY = "" (or performing a Menu
Reset—“09 Menu Reset”) returns the display to the normal ready
message.
Parameter Functional Range Default
DISPLAY = "message" Roman-8 characters 33 and
35 thru 255, <SP>
N/A