Xerox identified this issue for the Phaser 7700 with Document ID #97428 at:
with the following description:
"The Printer's Front Panel Scrolls Through Print Cartridge 1,2,3,4 Missing and/or Tray 1 Missing and/or Waste Cartridge Missing and/or Close Door B or Close Right Door"
But, the suggestions to open and close the drawers and reseat the printer cartridges do not work, as their only help is to note:
Solution (try these steps in order)
1. Turn the printer off, wait 30 seconds and turn the power back on
2. Phaser 7700 Printer: Open and close all access doors
3. Phaser 7700 Printer: Check to see if print cartridge is installed
4. Phaser 7700 Printer: Reseat the print cartridge
Any other thoughts on what might work?
David