Canon GP160DF Service Manual page 449

CHAPTER 1 MAINTENANCE AND SERVICING
A. Main Unit ......................................1-1
1. Periodic replacement parts .....1-1
2. Estimated lifespan of
consumable parts....................1-1
B. ADF ..............................................1-2
1. Periodic replacement parts .....1-2
2. Consumables replacement
targets .....................................1-2
CHAPTER 2 STANDARDS AND ADJUSTMENTS
A. Mechanical system.......................2-1
1. Right and left registration
adjustment...............................2-1
2. Image leading edge margin
adjustment...............................2-2
3. Attaching the scanner wire......2-2
4. Mirror positioning adjustment ..2-3
5. Printer unit receptacle
connector mount positioning
adjustment...............................2-6
6. Check the pressure (nip width)
of the fixing pressure roller .....2-6
B. Electrical System..........................2-8
1. Automatic shading
adjustment...............................2-8
CHAPTER 3 ARRANGEMENT AND FUNCTIONS
A. Clutches, solenoids ......................3-2
B. Motor, fan .....................................3-4
C. Sensors ........................................3-6
D. Switches, lamps, miscellaneous...3-8
E. PCBs ..........................................3-10
F. Variable resistor (VR)/LED/check
pin listed by PCB plate...............3-12
1. Image processor PCB ...........3-13
CONTENTS
OF ELECTRICAL PARTS
C. Basic servicing procedures ..........1-3
D. Cartridge storage and handling....1-4
1. Storage when the packing
seal is intact ............................1-4
2. Storage and handling when
the packing seal has been
opened ....................................1-5
2. Image positioning
adjustment...............................2-8
3. Sensor check ........................2-11
4. Image processor PCB
replacement procedures .......2-13
C. ADF height adjustment...............2-14
1. Height check .........................2-14
2. Height adjustment .................2-15
D. Skew feed adjustment ................2-16
1. Checking ADF skew feed ......2-16
2. Adjusting skew feed ..............2-17
E. Adjusting image position ............2-18
1. Checking image position .......2-18
2. Adjusting image position .......2-21
2. DC controller PCB/Sensor
PCB .......................................3-14
3. Feeder controller PCB
(Cassette feeder) ..................3-16
4. Modem board ........................3-17
5. NCU board ............................3-18
6. ADF .......................................3-19
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