Canon NP6251 Service Manual page 17

21.E212 (fault in lens Y direction
drive system) ..........................11-96
22.E213 .......................................11-96
23.E240 .......................................11-96
24.E243 .......................................11-97
25.E710/E711..............................11-97
26.E712 .......................................11-97
27.E713 .......................................11-97
28.E800 .......................................11-98
29.E802 .......................................11-98
30.AC power is absent................11-99
31.DC power supply is absent. ...11-100
32.Pick-up fails. (deck pick-up;
front paper deck + cassette) ..11-101
33.The deck lifter fails to move up.
(front paper deck + cassette)..11-102
34.Pick-up fails. (cassette
pick-up)...................................11-103
35.The lifter fails to move up.
(cassette)................................11-105
36.Pick-up fails. (multifeeder)......11-106
37.The vertical path roller fails to
rotate. .....................................11-107
38.The registration roller fails to
rotate. .....................................11-107
39.The scanner fails to move
forward. ..................................11-108
40.The scanner fails to move in
reverse. ..................................11-108
41.The blanking exposure lamp
fails to turn on. .......................11-109
42.The pre-exposure lamp fails
to turn on. ...............................11-109
43.The scanning lamp fails to
turn on. ...................................11-110
44.The hopper motor (M10) fails
to operate. ..............................11-111
45.The hopper motor (M11) fails
to operate. ..............................11-112
46.The drum heater fails to
operate. ..................................11-112
47.The lens fails to move. ...........11-113
48.The Add Toner indicator fails
to turn on. ...............................11-114
49.The Add Toner indicator fails
to turn off. ...............................11-114
50.The Set Control Card
message fails to turn off.........11-115
51.The Set Control Card
message fails to turn off.........11-115
52.Jams occur at the fixing
assembly inlet. .......................11-115
53.The Add Paper message
fails to turn off.........................11-115
54.The fixing heater fails to
operate. ..................................11-116
55.Pick-up fails. (paper deck-A1)..11-117
56.The deck lifter fails to move
up. (paper deck-A1) ...............11-118
COPYRIGHT © 1997 CANON INC.
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V.
VI. ARRANGEMENT AND FUNCTIONS
VII. SERVICE MODE ..............................11-159
CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)
TROUBLESHOOTING FEEDING
PROBLEMS......................................11-119
A. Copy Paper Jams........................11-119
1. Pick-Up Assembly ..................11-120
2. Separation/Feeding
Assembly................................11-121
3. Fixing/Delivery Assembly .......11-122
4. Fixing/Delivery Assembly
(reversed delivery) .................11-122
5. Cleaning Assembly ................11-123
6. Holding Tray Assembly (two-
sided/overlay copying, 1st
side)........................................11-123
7. Holding Tray Assembly
(re-pick up) .............................11-124
8. Holding Tray Assembly
(overlay, re-pick up)................11-124
9. Holding Tray Feeding
Assembly................................11-125
B. Feeding Faults.............................11-126
1. Double Feeding......................11-126
2. Wrinkles..................................11-126
OF ELECTRICAL PARTS ................11-127
A. Sensors .......................................11-128
B. Switches and Solenoids ..............11-132
C. Motors and Fans .........................11-136
D. Clutches ......................................11-138
E. Lamps, Heaters, and
Photosensors ..............................11-140
F. PCBs ...........................................11-142
G. Paper Deck-A1 ............................11-144
1. Sensors and Switches............11-144
2. Motors, Clutches, Solenoids,
and PCBs ...............................11-146
H. Variable Resistors (VR),
Light-Emitting Diodes (LED),
and Check Pins by PCB..............11-148
1. DC Controller PCB .................11-148
2. AC Driver PCB .......................11-151
3. DC Power Supply PCB ..........11-151
4. Control CPU PCB...................11-152
5. Holding Tray Driver PCB........11-153
6. Potential Measurement PCB..11-154
7. HVT1 PCB..............................11-155
8. HVT2 PCB..............................11-156
9. Inverter PCB...........................11-156
10.Lamp Regulator PCB .............11-157
11. Counter PCB ..........................11-157
12.Side Deck Driver
(paper deck-A1) .....................11-158
A. Outline .........................................11-159
B. Using Service Mode ....................11-160
C. Using Adjustment Mode and
Options Mode ..............................11-160
D. Display Mode (
1
E. I/O Display Mode (
F. Adjustment Mode (
) ...............11-162
) .........11-179
2
) .........11-215
3
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