Canon LBP-800, Service Manual

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PREFACE
P - 4
B. Paper Top Sensor/
Paper-out Sensor ................. 3-16
C. Power Switch/Test Print Switch/
Door Open Detection Switch/
Paper Delivery Sensor .......... 3-16
D. Display Unit LED ................. 3-16
VI. MOTOR/SOLENOID .................. 3-17
A. Locations............................. 3-17
B. Main Motor .......................... 3-18
C. Pick-up Solenoid.................. 3-18
VII. PCBs......................................... 3-19
A. Locations............................. 3-19
B. Interface Controller PCB...... 3-20
C. Engine Controller PCB ......... 3-21
D. Display PCB ......................... 3-23
I. PREFACE.................................. 4-1
A. Malfunction Diagnosis
Flowchart ............................ 4-1
B. Initial Check........................ 4-4
C. Test Print ............................ 4-5
II. IMAGE DEFECTS
TROUBLESHOOTING................. 4-6
III. JAMS TROUBLESHOOTING....... 4-12
IV. TRANSPORT
TROUBLESHOOTING................. 4-15
V. MALFUNCTION
TROUBLESHOOTING................. 4-16
VI. MALFUNCTION STATUS
TROUBLESHOOTING................. 4-17
VII. MEASUREMENT AND
ADJUSTMENT........................... 4-20
A. Mechanical Adjustment ....... 4-20
B. Electrical Adjustment .......... 4-20
C. LEDs, Test Pins, Jumpers
and Switches on PCBs.......... 4-21
VIII. MAINTENANCE AND
SERVICING ............................... 4-22
A. Periodic Replacement
Parts.................................... 4-22
B. Expected Servicing Lives of
Consumable Parts ................ 4-22
C. Periodic Service................... 4-22
D. Cleaning During a Service
Visit .................................... 4-23
E. Standard Tools..................... 4-25
F. Special Tools ....................... 4-25
G. List of Lubricants and
Cleaners .............................. 4-26
IX. LOCATION OF CONNECTORS.... 4-27
I. GENERAL TIMING CHART ........ A-1
A. Timing Chart for Printing
Two A4-size Sheet
Continuously ....................... A-1
II. GENERAL CIRCUIT DIAGRAM ... A-3
A. Engine Controller PCB ......... A-3
B. Interface Controller PCB...... A-4
III. LIST OF SIGNALS ..................... A-5
A. Engine Controller ................ A-5
IV. MESSAGES TABLE .................... A-7
A. Message List ........................ A-7
APPENDIX
CHAPTER 4 TROUBLESHOOTING