HP Laserjet 4 Plus & a MAcintosh Quadra 650 — #21

Post #21 by CelGen

Source Forum	68kMLA
Category	Peripherals
Post Date	Mon, 10 Aug 2015 - 08:06
Original URL	https://68kmla.org/bb/threads/hp-laserjet-4-plus-a-macintosh-quadra-650.2481/

Post

Berserker said:
So the 4M+ got the notirious PC Load Letter error message.

There's a fancy feature where you can remotely program the display to show anything you want.

This is an old trick, but always fun. It's easy to change the status message on a networked HP printer; just telnet to the printer's IP address on port 9100, and type the following:

@PJL RDYMSG DISPLAY="YOUR MESSAGE HERE"
Press enter, and you're done; the new status message will stick around until you change it back, or someone restarts the printer.