Xerox Phaser 7750 Service Manual - Page 4

Browse online or download pdf Service Manual for Printer Accessories Xerox Phaser 7750. Xerox Phaser 7750 14 pages. Color laser printer
Also for Xerox Phaser 7750: Specifications (4 pages), User Manual (35 pages), Brochure (8 pages), Owner's Manual (4 pages), Specifications (2 pages), Network Manual (8 pages), Quick Setup (5 pages), Supplementary Manual (5 pages), Manuallines (5 pages), Supplementary Manual (2 pages), Supplementary Manual (16 pages), Install Manual (6 pages), Owner's Manual (19 pages), Owner's Manual (3 pages), Maintenance Manual (1 pages), Color Manual (4 pages), Installation Manual (33 pages), Quick Reference Manual (8 pages), Quick Reference Manual (8 pages), Quick Reference Manual (8 pages), Setup Manual (2 pages), User Documentation (17 pages), Setup Manual (2 pages), Adding Memory Manual (2 pages)

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Engine Logic Board NVRAM Failure, Code 83 . . . . . . . . . . . . . . 3-40

Controller to Engine Logic Board Time Failure, Code 84 . . . . . . 3-40

Engine Logic Board Micro Pitch Failure, Code 85. . . . . . . . . . . . 3-40

High-Voltage Power Supply Failure, Code 86 . . . . . . . . . . . . . . . 3-40

Tray Lift Failure, Code 87 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41

Tray 1/MPT Size Sensor (7-274), Code? . . . . . . . . . . . . . . . . . . 3-43

Lower Tray Communication Failure, Code 88. . . . . . . . . . . . . . . 3-44

Reflective Sensor Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45

Transmissive Sensor Procedure. . . . . . . . . . . . . . . . . . . . . . . . . 3-46

Finisher Stapler Move Sensor On Failure, Code 111

Finisher Stapler Failure, Code 113 . . . . . . . . . . . . . . . . . . . . . . . 3-49

Front Tamper Home Sensor Failure, Code 114. . . . . . . . . . . . . . 3-51

Rear Tamper Home Sensor Failure, Code 115 . . . . . . . . . . . . . . 3-52

Finisher Stacker Height Sensor Off Failure, Code 116 . . . . . . . . 3-53

Finisher Stacker Tray Failure, Code 117 . . . . . . . . . . . . . . . . . . . 3-55

Finisher Stapler Front Corner On Failure, Code 118

Finisher Eject Clamp Home Sensor On Failure, Code 120

Finisher Decurler Failure, Code 122 . . . . . . . . . . . . . . . . . . . . . . 3-59

Finisher Set Clamp Failure, Code 123. . . . . . . . . . . . . . . . . . . . . 3-60

Finisher Communication Failure, Code 124 . . . . . . . . . . . . . . . . 3-61

Finisher Staple Mode Logic Failure, Code 125 . . . . . . . . . . . . . . 3-61

4 General Troubleshooting

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Service Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Service Diagnostic Front Panel Button Descriptions. . . . . . . . . . . 4-3

Service Diagnostic Tests Table. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Front Panel Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

The Printer Does Not Come to a "Ready" State . . . . . . . . . . . . . 4-14

Inoperable Printer Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

Troubleshooting Power Supplies and Interlocks . . . . . . . . . . . . . . . . . . 4-16

Troubleshooting AC Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16

Troubleshooting the Low-Voltage Power Supplies. . . . . . . . . . . 4-17

Troubleshooting the +3.3 VDC and

Troubleshooting the 24 VDC LVPS. . . . . . . . . . . . . . . . . . . . . . . 4-18

Interlock Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19

Media Jams and the Paper Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Media-Based Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Operating System and Application Problems. . . . . . . . . . . . . . . . . . . . . 4-23

Windows 2000, Windows XP, Windows Server 2003

Windows NT 4.x Troubleshooting (TCP/IP) . . . . . . . . . . . . . . . . 4-24

Service Manual

Finisher Stapler Move Sensor Off Failure, Code 112. . . . . . . 3-47

Finisher Stapler Front Corner Off Failure, Code 119 . . . . . . . 3-57

Finisher Eject Clamp Home Sensor Off Failure, Code 121. . . 3-58

(2) +5 VDC Low-Voltage Power Supplies . . . . . . . . . . . . . . . 4-18

Troubleshooting (TCP/IP). . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23