Canon NP6251 Service Manual page 10

C. Sequence of Pick-Up Operations
(multifeeder) ..................................5-22
V. CONTROLLING THE
REGISTRATION CLUTCH .................5-23
VI. MAKING TWO-SIDED/OVERLAY
COPIES ..............................................5-24
A. Making Two-Sided/Overlay
Copies (1st side) ...........................5-24
1. Sequence of Operations
(two-sided/overlay copies;
1st side)....................................5-25
B. Making Two-Sided Copies
(2nd side) ......................................5-26
1. Sequence of Operations
(two-sided copying; 2nd side) ..5-27
C. Making Overlay Copies
(2nd side) ......................................5-28
1. Outline ......................................5-28
2. Outline of Operation .................5-29
3. Sequence of Operations
(overlay copying; 2nd side) ......5-31
D. Reversal Delivery ..........................5-32
1. Sequence of Reversal
Delivery Operations..................5-33
E. Switching the Paper Size for Two-
Sided/Overlay/Reversal Delivery
Copies ...........................................5-34
1. Movement of the Paper Size
Guide ........................................5-34
2. Movement of the Paper
Jogging Plate and the Trailing
Edge Guide Plate .....................5-35
3. Detecting the Presence/
Absence of Copy Paper ...........5-36
F. Re-Pick Up from the Holding
Tray................................................5-37
G. Skipping Operation ........................5-38
1. Outline ......................................5-38
2. Outline of Operations ...............5-39
3. Skipping Operation (odd
number of originals) .................5-41
4. Skipping Operation (odd
number of originals) .................5-42
5. Reversal Delivery .....................5-45
VII. DETECTING JAMS ............................5-46
A. Outline ...........................................5-46
1. Registration Roller Delay Jam..5-49
2. Registration Roller Stationary
Jam...........................................5-49
3. Pick-Up Vertical Path Feeding
0/1 Delay Jam ..........................5-50
4. Pick-Up Vertical Path Feeding
0/1 Stationary Jam ...................5-50
5. Pick-Up Vertical Path Feeding
2 through 4 Delay Jam .............5-51
6. Pick-Up Vertical Path Feeding
2 through 4 Stationary Jam ......5-51
7. Fixing Assembly Outlet Delay
Jam...........................................5-52
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8. Fixing Assembly Outlet
Stationary Jam .........................5-52
9. External Delivery Delay Jam ....5-53
10.External Delivery Stationary
Jam...........................................5-53
11. Internal Delivery Delay Jam .....5-54
12.Internal Delivery Stationary
Jam...........................................5-54
13.Holding Tray Inlet Delay Jam ...5-55
14.Holding Tray Inlet Stationary
Jam...........................................5-55
15.Holding Tray Re-Pick Up Delay
Jam...........................................5-56
16.Holding Tray Registration
Delay Jam ................................5-56
17.Holding Tray Registration
Stationary Jam .........................5-57
18.Holding Tray Feeding 1/2
Delay Jam ................................5-57
19.Holding Tray Feeding 1/2
Stationary Jam .........................5-58
20.Left Deck Pick-Up Delay Jam ..5-58
21.Left Deck Pick-Up Stationary
Jam...........................................5-59
22.Fixing Separation Claw
Assembly Stationary Jam.........5-59
VIII. DISASSEMBLY AND ASSEMBLY......5-60
A. Multifeeder Assembly ....................5-61
1. Removing the Multifeeder
Assembly ..................................5-61
2. Removing the Pick-Up Roller ...5-61
3. Installing the Pick-Up Roller .....5-62
4. Removing the Separation
Roller ........................................5-63
5. Removing the Feeding Roller...5-65
6. Removing the Multifeeder
Paper Sensor ...........................5-66
7. Attaching the Side Guide
Timing Belt in the Multifeeder
Assembly ..................................5-68
8. Installing the Feeding Roller of
the Multifeeder..........................5-69
9. Adjusting the Pressure of the
Pick-Up/Feeding Roller of the
Multifeeder................................5-69
10.Position of the Pick-Up Roller
Releasing Solenoid of the
Multifeeder................................5-70
B. Front Paper Deck Assembly .........5-71
1. Removing the Paper Deck
Assembly from the Copier........5-71
2. Removing the Lifter Cable........5-72
3. Changing the Deck Paper Size..5-77
4. Adjusting the Deck
Registration ..............................5-79
C. Right Deck Pick-Up Assembly
(cassette holder)............................5-80
1. Removing the Pick-Up
Assembly from the Copier........5-80
CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)