Xerox 7700 Service Manual - Page 15
Browse online or download pdf Service Manual for Software Xerox 7700. Xerox 7700 29 pages. Color laser printer
Also for Xerox 7700: User Manual (35 pages), Supplementary Manual (1 pages), Install Manual (42 pages), Setup And Quick Reference Manual (40 pages), Installation Manual (33 pages), Service Manual (17 pages), Setup Manual (2 pages)
Print Page
Entering Service Diagnostics Mode .................................................................2-35
Service Diagnostics Test Menu Functions ........................................................2-36
Error Codes and Messages Troubleshooting ...........................................................2-46
Voltage Measurements ............................................................................................2-46
Fuser Connector Pin Locations ........................................................................2-47
Troubleshooting
Troubleshooting Network Problems ........................................................................3-88
Operating System and Application Problems ...................................................3-88
Media Jams and the Paper Path .......................................................................3-88
Print Image Quality Problems ..........................................................................3-88
Troubleshooting Power Supplies and Interlocks .....................................................3-89
Troubleshooting AC Power ..............................................................................3-89
Troubleshooting the Low-voltage Power Supplies ...........................................3-89
Troubleshooting the +3.3 VDC and +5 VDC LVPS ............................................3-90
Troubleshooting the +24 VDC LVPS ................................................................3-90
Interlock Circuit Diagram .................................................................................3-91
The +24 VDC Interlock Circuit ..........................................................................3-91
The +5 VDC Interlock Circuit ............................................................................3-92
Troubleshooting When the Printer Does Not Come to a "Ready" State ...................3-93
Printer Does Nothing When Power Switched On .............................................3-93
Fans On, Front Panel LED Never On .................................................................3-93
Fans On, Front Panel LED is Red, No Front Panel message .............................3-93
Front Panel Continually Displays the Xerox Phaser 7700 Splash Screen .........3-93
Front Panel Continually Displays "warming up - please wait" Message ............3-93
Front Panel displays "Fatal Fault Encountered" message .................................3-94
Troubleshooting - Printer Comes to a "Ready" State ..............................................3-94
False LH Door, RH Door, or Front Door Open Messages .................................3-94
False "Load Paper in Tray [1,2,3,4]" Message ..................................................3-94
False "Tray [1,2,3,4] Missing" Message ...........................................................3-94
Tray 1 Will Not Lift ...........................................................................................3-95
Tray 2, 3 or 4 Will Not Lift ................................................................................3-95
Tray 2, 3 and 4 Will Not Lift or
Printer Will Not Recognize the Auxiliary Feeder ......................................................3-96
Printer Will Not Recognize the Finisher ............................................................3-96
Troubleshooting the Toner Dispense/Auger/Developer System ..............................3-97
Checking the Toner Cartridge ...........................................................................3-97
Checking the Toner Auger System ...................................................................3-98
Checking the Developer ATC Sensor ..............................................................3-101
Checking the Developer .................................................................................3-102
Tips ................................................................................................................3-102
Operation System and Application Problems ........................................................3-104
Macintosh Printing Problems ........................................................................3-104
Phaser 7700 Color Laser Printer Service Manual
3-87
xiii