Xerox Phaser 7700 Service Manual

Also see for 7700: User guide User guide Supplementary guide Install guide Advanced features and troubleshooting manual

Contents

Xerox Phaser 7700 Service Manual Manual pdf 15 page image

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