Xerox 7700DX - Phaser Color Laser Printer Service Manual page 14

General Information
Phaser 7700 Printer Overview .................................................................................. 1-2
Printer RAM and Printer Capabilities ................................................................. 1-4
CRC Life Counter Behavior ................................................................................ 1-5
Engine Control Interface and Power Supply Boards .......................................... 1-6
Power Supplies ................................................................................................. 1-7
Engine Control and Image Processor Boards .................................................... 1-8
Auxiliary Feeder Control Board .......................................................................... 1-9
Print Engine Sensors and Switches ................................................................. 1-10
Print Engine Sensors and Switches (cont'd.) ................................................. 1-11
Auxiliary Feeder Sensors and Switches ........................................................... 1-12
Auxiliary Feeder Actuators and Clutches ......................................................... 1-13
Print Engine Solenoids, Actuators, and Clutches ............................................ 1-14
Print Engine and Auxiliary Feeder Interlocks and Sensors ............................... 1-15
Image Processor Board ................................................................................... 1-16
Assemblies of the Print Engine ........................................................................ 1-17
Assemblies of the Print Engine (cont'd.) ........................................................ 1-18
Assemblies of the Print Engine (cont'd.) ........................................................ 1-19
Auxiliary Feeder Assemblies ........................................................................... 1-20
Front Panel Description .......................................................................................... 1-21
LED indicators ................................................................................................. 1-21
Front Panel Shortcuts ...................................................................................... 1-22
Rear Panel .............................................................................................................. 1-23
Connectors ...................................................................................................... 1-23
Printer Specifications 1-24
Physical Dimensions and Clearances .............................................................. 1-24
Supported Paper Weights, Page Sizes and Print Area ..................................... 1-27
Diagnostics, Error Codes and Messages
Error Messages 2-31
Troubleshooting Error Codes 2-31
Chain / Link ..................................................................................................... 2-31
Where do they come from? ............................................................................. 2-31
Why are they here? ......................................................................................... 2-31
System Boot Sequence ................................................................................... 2-32
Power On Self Test (POST) ............................................................................. 2-32
POST Faults ..................................................................................................... 2-33
Fault Reporting Devices ................................................................................... 2-33
LED Blink Patterns ........................................................................................... 2-33
POST Diagnostics Test Descriptions ............................................................... 2-34
Service Diagnostics ................................................................................................ 2-35
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