Canon NP6330 Service Manual page 8

A. Outline ...........................................4-21
B. Detecting the Level of Toner and
Controlling the Supply ...................4-23
C. Stopping the Hopper Motor in
Response to a Rotation Error........4-24
III. DISASSEMBLY AND ASSEMBLY......4-25
A. Scanning Lamp Assembly.............4-25
1. Removing the Scanning Lamp ...4-25
2. Orientation of the Scanning
Lamp ........................................4-26
3. Removing the Thermal Fuse....4-27
B. Blank Exposure Lamp Assembly ..4-28
1. Removing the Blank Exposure
Lamp Assembly........................4-28
2. Removing the Blank Exposure
Lamp ........................................4-30
3. Removing the Blank Shutter
Solenoid ...................................4-31
4. Adjusting the Position of the
Blank Shutter Solenoid.............4-32
5. Removing the Blank Shutter
Motor ........................................4-33
6. Routing the Blank Shutter
Cable ........................................4-33
CHAPTER 5 PICK-UP/FEEDING SYSTEM
I. PICK-UP/FEEDING SYSTEM ............5-1
A. Outline ...........................................5-1
II. PICK-UP FROM THE CASSETTE .....5-3
A. Pick-Up Operation .........................5-3
1. Outline ......................................5-3
2. Sequence of Pick-Up
Operations ................................5-5
B. Movement of the Cassette Lifter ...5-6
C. Identifying the Size of
Copy Paper ...................................5-8
1. Outline ......................................5-8
2. Identifying the Size of Copy
Paper ........................................5-8
3. Markings on the Width Guide
Rail ...........................................5-10
4. Paper Size................................5-11
5. Registering Paper Width Basic
Values.......................................5-12
III. PICK-UP FROM THE
MULTIFEEDER...................................5-13
A. Pick-Up Operation .........................5-13
1. Outline ......................................5-13
2. Identifying the Size of Paper
on the Multifeeder ....................5-14
3. Sequence of Multifeeder
Pick-Up Operation ....................5-15
IV. CONTROLLING THE
REGISTRATION CLUTCH .................5-16
V. TWO-SIDED COPYING .....................5-18
COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
C. Drum Unit ......................................4-34
1. Removing the Drum Unit..........4-34
2. Cleaning ...................................4-35
D. Charging Assembly .......................4-36
1. Removing the Primary
Charging Assembly ..................4-36
2. Removing the Transfer
Charging Assembly ..................4-37
3. Stringing the Primary/
Transfer Charging Wire ............4-37
4. Stringing the Guide Wire ..........4-41
5. Adjusting the Height of the
Charging Wire ..........................4-41
E. Developing System .......................4-42
1. Removing the Developing
Assembly ..................................4-42
2. Removing the Blade .................4-43
3. Removing the Magnetic Seal
(developing cylinder) ...............4-44
4. Installing the Magnetic Seal
and the Blade ...........................4-47
5. Installing the Electrode
Positioning Plate.......................4-48
A. Making Two-Sided Copies.............5-18
1. Outline ......................................5-18
2. Operations ................................5-19
B. Lower Feeding Assembly ..............5-20
1. Outline ......................................5-20
2. Set-Back Operation ..................5-22
3. Sequence of Set-back
Operation..................................5-26
4. Re-Pick Up ...............................5-27
5. Sequence of Re-Pick-up
Operation..................................5-29
C. Horizontal Registration ..................5-30
1. Outline ......................................5-30
2. Operation..................................5-31
3. Sequence of Operatiion ...........5-33
VI. DETECTING JAMS ............................5-34
A. Outline ...........................................5-34
VII. DISASSEMBLY AND ASSEMBLY......5-45
A. Pick-Up Assembly .........................5-46
1. Construction .............................5-46
2. Removing the Pick-Up
Assembly ..................................5-47
3. Removing the Pick-Up Roller ...5-48
4. Points to Note When Installing
the Pick-Up Roller ....................5-49
5. Removing the Feeding Roller...5-49
6. Removing the Separation
Roller ........................................5-51
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