Canon LBP5050 Series Service Manual page 10

Contents
4.4 Cleaning ..................................................................................................................................................... 4- 1
4.4.1 Cleaning Point..........................................................................................................................................................4- 1
4.4.2 Pickup Roller............................................................................................................................................................4- 1
4.4.3 Separation Roller .....................................................................................................................................................4- 2
4.4.4 Front Fixing Guide ...................................................................................................................................................4- 2
4.4.5 Feed Guide ..............................................................................................................................................................4- 2
Chapter 5 TROUBLESHOOTING
5.1 MEASUREMENT AND ADJUSTMENT...................................................................................................... 5- 1
5.1.1 Test Print..................................................................................................................................................................5- 1
5.1.1.1 Test Pages............................................................................................................................................................................... 5- 1
5.1.2 Adjustment of Laser Exposure System...................................................................................................................5- 1
5.1.2.1 After Replacing the laser scanner unit ..................................................................................................................................... 5- 1
5.1.3 Adjustment of Electrical Components .....................................................................................................................5- 1
5.1.3.1 After Replacing the DC controller PCB .................................................................................................................................... 5- 1
5.1.3.2 After Replacing the Main Controller PCB................................................................................................................................. 5- 1
5.1.4 Adjustment of Fixing System ..................................................................................................................................5- 2
5.1.4.1 Nip-width specifications ........................................................................................................................................................... 5- 2
5.2 SERVICE TOOLS ...................................................................................................................................... 5- 3
5.2.1 Standard Tools.........................................................................................................................................................5- 3
5.2.2 Solvents and Oils .....................................................................................................................................................5- 3
5.3 ERROR CODE ........................................................................................................................................... 5- 3
5.3.1 Error code ................................................................................................................................................................5- 3
5.4 Version Up.................................................................................................................................................. 5- 6
5.4.1 Outline......................................................................................................................................................................5- 6
5.4.1.1 Overview of Version Upgrading ............................................................................................................................................... 5- 6
5.5 Service Mode ............................................................................................................................................. 5- 6
5.5.1 Outline......................................................................................................................................................................5- 6
5.5.1.1 Outline...................................................................................................................................................................................... 5- 6
5.5.2 Service Mode Table .................................................................................................................................................5- 7
5.5.2.1 Service Mode Items ................................................................................................................................................................. 5- 7
5.5.2.2 Service Chart Print 1................................................................................................................................................................ 5- 8
5.5.2.3 Service Chart Print 2................................................................................................................................................................ 5- 9
5.5.2.4 Status Print B ......................................................................................................................................................................... 5- 12
Chapter 6 APPENDIX
6.1 OUTLINE OF ELECTRICAL COMPONENTS ............................................................................................ 6- 1
6.1.1 Clutch/Solenoid........................................................................................................................................................6- 1
6.1.1.1 Solenoid ................................................................................................................................................................................... 6- 1
6.1.2 Motor........................................................................................................................................................................6- 1
6.1.2.1 Motor........................................................................................................................................................................................ 6- 1
6.1.3 Sensor......................................................................................................................................................................6- 2
6.1.3.1 Sensor...................................................................................................................................................................................... 6- 2
6.1.4 PCBs........................................................................................................................................................................6- 3
6.1.4.1 PCBs........................................................................................................................................................................................ 6- 3