HP PCL/PJL reference - Printer Job Language Technical Reference Manual
Page 160
Comments: Since the RDYMSG command leaves the printer online, it can be enclosed in ...replaces the lowest priority message, which is printing. The variable message can be any combination of printable characters (except quotation marks, character 34) and spaces, with the specified message. The command @PJL RDYMSG DISPLAY = "" (or performing a... Attendance Commands EN Use the RDYMSG command 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 ...
Comments: Since the RDYMSG command leaves the printer online, it can be enclosed in ...replaces the lowest priority message, which is printing. The variable message can be any combination of printable characters (except quotation marks, character 34) and spaces, with the specified message. The command @PJL RDYMSG DISPLAY = "" (or performing a... Attendance Commands EN Use the RDYMSG command 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 ...