Canon NP6251 Service Manual page 13

4. Removing the Developing
Fan ...........................................7-31
5. Removing the Cleaner Fan ......7-32
6. Removing the Feeding Fan......7-33
E. Removing the Counter Assembly..7-33
F. Main Motor Assembly....................7-34
1. Removing the Main Motor ........7-34
G. Fixing/Waste Toner Drive
Assembly .......................................7-35
1. Construction .............................7-35
2. Removing the Waste Toner
Bottle ........................................7-35
3. Removing the Fixing/Waste
Toner Drive Assembly ..............7-35
H. Main Drive Assembly (drum/
developing) ....................................7-38
1. Construction .............................7-38
2. Removing .................................7-38
I. Vertical Path Drive Assembly ........7-40
1. Construction .............................7-40
2. Removing .................................7-40
J. Pick-Up Drive Assembly................7-42
1. Construction .............................7-42
2. Removing .................................7-43
CHAPTER 8 PAPER DECK-A1
I. SIDE PAPER DECK ...........................8-1
A. Inputs to and Outputs from the
Side Deck Driver ...........................8-1
1. Inputs to the Side Deck Driver
(1/2) ..........................................8-1
2. Inputs to the Side Deck Driver
(2/2) ..........................................8-2
3. Outputs from the Side Deck
Driver (1/1) ...............................8-3
B. Pick-Up ..........................................8-4
1. Outline ......................................8-4
2. Pick-Up Operation ....................8-4
3. Sequence of Operations (deck
pick-up).....................................8-6
C. Detection of Paper for the Deck ....8-7
1. Detecting the Presence/
Absence of Paper.....................8-7
2. Changing the Paper Size for
the Deck ...................................8-7
D. Deck Lifter .....................................8-8
1. Lifter Operation.........................8-8
2. Detecting the Level of the
Stack in the Deck
(compartment) ..........................8-10
E. Opening/Closing the Deck
(compartment) ...............................8-11
1. Opening/Closing the Deck .......8-11
2. Sequence of Operations (deck
opening/closing) .......................8-12
COPYRIGHT © 1997 CANON INC.
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II.
III.
CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)
K. Duplexing Drive (1) Assembly .......7-44
1. Construction .............................7-44
2. Removing .................................7-45
L. Lifter Drive Assembly ....................7-46
1. Construction .............................7-46
2. Removing .................................7-46
M. Cassette Pick-Up Drive
Assembly .......................................7-48
1. Construction .............................7-48
2. Removing .................................7-48
N. Attaching the Drive Belt.................7-50
O. DC Controller PCB ........................7-51
1. Removing the DC Controller
PCB ..........................................7-51
2. Points to Note When Replacing
the DC Controller PCB .............7-51
P. DC Power Supply Assembly .........7-52
1. Removing the DC Power
Supply Assembly......................7-52
Q. High-Voltage Transformer
Assembly .......................................7-53
1. Remove the High-Voltage
Transformer Assembly .............7-53
R. Power Supply Inlet Assembly........7-54
F. Controlling the Deck Motor............8-13
1. Controlling the Deck Main
Motor (M101)............................8-13
2. Controlling the Deck Lifter
Motor (M102)............................8-15
DETECTING JAMS ............................8-17
A. Outline ...........................................8-17
1. When copy paper is present at
any of the sensors at power-on,
end of wait-up, or during
standby. ....................................8-18
2. Deck Pick-Up/Vertical Path
Delay Jam ................................8-18
3. Deck Pick-Up/Vertical Path
Stationary Jam .........................8-18
DISASSEMBLY AND ASSEMBLY......8-19
A. External Covers .............................8-20
1. Removing the Front Cover .......8-21
2. Removing the Vertical Path
Cover (rear) ..............................8-24
3. Removing the Right Cover .......8-25
4. Removing the Upper Cover......8-26
B. Paper Deck....................................8-28
1. Removing the Deck from the
Copier .......................................8-28
2. Removing the Compartment ....8-30
3. Changing the Deck Paper
Size ..........................................8-32
4. Adjusting the Deck Registration ..8-33
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