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4

Chapter

General 
Troubleshooting

In this chapter...

Introduction

Service Diagnostics

Front Panel Troubleshooting

Inoperable Printer Troubleshooting

Troubleshooting Power Supplies and Interlocks

Media Jams and the Paper Path

Operating System and Application Problems

Summary of Contents for Phaser 7750

Page 1: ...Service Manual P h a s e r C o l o r L a s e r P r i n t e r 7750...

Page 2: ...and Consumables 1 8 Printer Specifications 1 9 Physical Dimensions and Clearances 1 9 Mounting Surface Specification 1 10 Functional Specifications 1 12 Electrical Specifications 1 12 Environmental Sp...

Page 3: ...lator Belt Home Position Took Too Long Code 30 Accumulator Belt Home Position Failure Code 31 3 19 Accumulator Belt Edge Sensor Failure Code 32 Accumulator Belt Drive Logic Failure Code 34 3 22 Unexpe...

Page 4: ...er Eject Clamp Home Sensor On Failure Code 120 Finisher Eject Clamp Home Sensor Off Failure Code 121 3 58 Finisher Decurler Failure Code 122 3 59 Finisher Set Clamp Failure Code 123 3 60 Finisher Comm...

Page 5: ...int Fast Scan 8 Tone 5 11 Initial Actions Before troubleshooting any Print Quality Problems 5 12 6 Adjustments and Calibrations Registration Control RegiCon Adjustment Overview 6 2 Coarse and Fine Ske...

Page 6: ...t List 2 14 Tray 1 Feed Assembly 9 18 Part List 3 1 Laser ROS Assembly 9 19 Part List 4 1 Xerographic Module 1 of 2 9 20 Part List 4 2 Xerographic Module 2 of 2 9 21 Part List 5 1 Lift Unit 9 22 Part...

Page 7: ...11 10 Horizontal Transport Assembly 11 11 Horizontal Transport Top Open Front and Rear Cover 11 12 Horizontal Transport Entrance Upper Cover Assembly 11 13 Horizontal Transport Belts 11 14 Horizontal...

Page 8: ...Assembly 11 56 PL 17 10 Compiler Tray Assembly 11 58 PL 17 11 Stacker Elevator Assembly 11 60 PL 17 12 Exit Assembly 11 62 PL 17 13 Electrical Components 11 64 PL 17 14 Finisher Rack Stand 11 66 A App...

Page 9: ...g In this chapter Introduction Service Diagnostics Front Panel Troubleshooting Inoperable Printer Troubleshooting Troubleshooting Power Supplies and Interlocks Media Jams and the Paper Path Operating...

Page 10: ...problems quickly and isolate which component or sub assembly part needs replacement Service diagnostics are to be executed through the front panel by a certified service technician only Service Diagn...

Page 11: ...8 Chapter Service Parts Disassembly In this chapter Overview General Notes on Disassembly Disassembly Procedures...

Page 12: ...erse the removal procedure shown In some instances the replacement procedure is included because it may contain special steps For specific assemblies and parts refer to Service Parts Lists on page 9 1...

Page 13: ...f Xerox Phaser 7750 sm_03 pdf Xerox Phaser 7750 sm_03 pdf Xerox Phaser 7750 sm_03 pdf Xerox Phaser 7750 sm_03 pdf Xerox Phaser 7750 sm_03 pdf Xerox Phaser 7750 sm_03 pdf Xerox Phaser 7750 sm_03 pdf Xe...

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