Xerox 2135DX - Phaser Color Laser Printer, Service Manual

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Service Guide
v
General Information 1
The Phaser 2135 Color Printer 2
Printer RAM and printer capabilities 4
CRC life counter behavior 4
Print engine assemblies 5
The image processor board 8
The control panel 9
On Line LED 9
! Fault 9
Rear panel 10
Accessing special operating modes 11
System controller board LEDs 11
Paper tray size sensing 12
Specifications 13
Regulatory specifications 16
Error Codes and Messages 17
Error messages 17
Troubleshooting 29
Fault History Log 29
Power on self-diagnostic test 30
Print engine troubleshooting 31
Testing the print engine controller board 31
Verifying printer operation by using its self-test print 32
Verifying power supply operation 32
Measuring power supply voltages 32
Inspecting the low-voltage power supply fuse 34
Safety interlocks 34
Ensuring the +5 VDC loop is complete 35
Testing for a shorted motor 36
Motor and fuser roller resistances 37
Media jams and the paper path 38
Media-based problems 38
Media problems 38
Multiple-sheet pick 38
The media skews passing through the paper path 39
The paper tray indicates it is empty when it is not 39
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