Canon LBP-1120 Service Manual page 6

PREFACE
VI. MOTOR/SOLENOID ........................ 3-15
A. Arrangement of the Components 3-15
B. Main Motor ................................. 3-16
C. Pick-up Solenoid ........................ 3-16
I. PREFACE ........................................ 4-1
A. Malfunction Diagnosis
Flowchart.................................... 4-1
B. Initial Check ................................ 4-4
C. Test Print .................................... 4-5
II. IMAGE DEFECTS
TROUBLESHOOTING ..................... 4-7
III. JAMS TROUBLESHOOTING .......... 4-13
IV. TRANSPORT
TROUBLESHOOTING ..................... 4-16
V. MALFUNCTION
TROUBLESHOOTING ..................... 4-17
VI. MALFUNCTION STATUS
TROUBLESHOOTING ..................... 4-18
VII. MEASUREMENT AND
ADJUSTMENT................................. 4-21
A. Mechanical Adjustment .............. 4-21
I. GENERAL TIMING CHART ............. A-1
A. Timing Chart for Printing
Two A4-size Sheet
Continuously .............................. A-1
II. GENERAL CIRCUIT DIAGRAM ....... A-3
P - 4
CHAPTER 4 TROUBLESHOOTING
APPENDIX
VII. PCBS ............................................... 3-17
A. Arrangement of the Components 3-17
B. Interface Controller PCB ............ 3-18
C. Engine Controller PCB ............... 3-18
D. Display PCB ............................... 3-20
B. Electrical Adjustment .................. 4-21
C. LEDs, Test Pins, Jumpers,
and Switches on PCBs ............... 4-22
VIII. MAINTENANCE AND
SERVICING ..................................... 4-23
A. Periodic Replacement
Parts ........................................... 4-23
B. Expected Servicing Lives of
Consumable Parts ...................... 4-23
C. Periodic Service ......................... 4-23
D. Cleaning During a Service
Visit ............................................ 4-24
E. Standard Tools ........................... 4-26
F. Special Tools .............................. 4-27
G. List of Lubricants and
Cleaners ..................................... 4-27
IX. LOCATION OF CONNECTORS ...... 4-28
A. Engine Controller PCB ............... A-3
B. Interface Controller PCB ............ A-3
III. LIST OF SIGNALS ........................... A-5
A. Engine Controller ........................ A-5
IV. MESSAGES TABLE ........................ A-7
A. Message List .............................. A-7