Troubleshooting - Xerox Phaser 7700 Service Manual

Troubleshooting

For error codes and messages Diagnostics, Error Codes and Messages on
page 3-31
The Phaser 7700 Printer has built-in diagnostics to aid in troubleshooting
problems with the printer. The Service Diagnostics Menu provides a means to
test sensors, motors and solenoids. Diagnostics also contains built-in test prints,
and calibration and cleaning procedures. For details on error codes, messages
and service diagnostics, Diagnostics, Error Codes and Messages on page 3-31
Note Before troubleshooting power supply problems, disconnect the
Auxiliary Feeder or Finisher, if installed, and restart the printer.
Verify the problem is still present or refer to the appropriate
Option troubleshooting section.
This section is ordered as follows:
Troubleshooting Power Supplies and Interlocks
AC Power
Low-voltage Power Supplies [LVPS]
3.3 VDC and 5 VDC LVPS
24 VDC LVPS
24 VDC Interlock Circuit
5 VDC Interlock Circuit
System problems where the printer will not come to "Ready".
Printer does nothing when power is turned on.
Fan on, Front Panel LED never on
Fan on, Front Panel LED on, no Front Panel message
Front Panel continually displays Xerox Phaser 7700 splash screen
Front Panel continually displays "WARMING UP"
Front Panel displays "FATAL FAULT ENCOUNTERED".
Troubleshooting Network Problems
Operating System and Application Problems
Macintosh printing problems
Windows printing problems
Service Quick Reference Guide - Troubleshooting
3-85