7

Troubleshooting

Contents

General Troubleshooting Flowchart

7-3

Paper Path and Components

7-5

DC Controller Diagram

7-6

Printer Error Troubleshooting

7-7

Priority of Errors

7-7

Printer Status Messages

7-8

Service and Error Messages

7-10

Image Formation Troubleshooting

7-13

Check the Toner Cartridge

7-13

Image Defect Examples

7-14

Troubleshooting Checks

7-21

Engine Test

7-21

Half-Self Test Functional Check

7-22

Drum Rotation Functional Check

7-23

High-Voltage Power Supply Check

7-24

Paper Curl

7-26

Troubleshooting Tools

7-27

Paper Path Check

7-27

Repetitive Image Defect Ruler

7-28

Main Wiring Diagram

7-29

Troubleshooting 7-1

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Image 122
HP 6L, 5L manual Troubleshooting