March 2006
6-1
Phaser® 7760 Color Laser Printer
General Troubleshooting Procedures
Launch
6 Control Panel Diagnostics
Introduction .....................................................................................................................
6-3
Diagnostic Fault History ..................................................................................................
6-3
Control Panel Diagnostics...............................................................................................
6-5
Control Panel Troubleshooting........................................................................................
6-18
Inoperable Printer............................................................................................................
6-19
Power Supplies and Interlocks........................................................................................
6-19
Media Jams and the Paper Path .....................................................................................
6-22
Operating System and Application Problems..................................................................
6-23
6 Diagnostics Procedures
Date and Time.................................................................................................................
6-27
Supplies Usage ...............................................................................................................
6-27
Resetting NVRAM ...........................................................................................................
6-31
Store Engine NVRAM .....................................................................................................
6-32
Clear Tech Rep Faults ....................................................................................................
6-32
Printer Status Page .........................................................................................................
6-33
Configuration Page .........................................................................................................
6-33
Printer Configuration .......................................................................................................
6-34
Engine ROM Version ......................................................................................................
6-34
Test Prints .......................................................................................................................
6-35
Reflective Sensor Procedure ..........................................................................................
6-36
Transmissive Sensor Procedure .....................................................................................
6-37
Developer BIAS...............................................................................................................
6-38
Enable Metered Toner ....................................................................................................
6-39
6 General Procedures
System Startup and POST ..............................................................................................
6-41
Power On Self Test (POST)............................................................................................
6-41
POST Faults....................................................................................................................
6-42
Network Diagnostics .......................................................................................................
6-43
Intermittent Problem ........................................................................................................
6-43
Back Channel Traces ......................................................................................................
6-45
6 Change Tag Information
Finisher (F) Tags.............................................................................................................
6-49
