Canon PC981 Support Question
Canon PC981 Support Question
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Question posted by rgodoy101 on March 17th, 2013
There Are Black Vertical Streaks On The Paper
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Related Canon PC981 Manual Pages
Service Manual - Page 16
... models with a zoom function. *2. If stopped because paper ran out during copying operation, 1 hr.
1-4
COPYRIGHT © 1999 CANON INC.
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Applies only to remove each from the copy tray. *5. Be sure to vertical feeding. *4. Applies only to remove any curling before...
Service Manual - Page 38
... PCB
Q101
• Scanner home position detection • Lens home position detection
CPU +5V +24V
• Pre-registration roller paper
detection
• Delivery paper detection
• Vertical path roller paper detection
• Single-feeder paper detection
Composite
power supply PCB
Scanning lamp
Q900
CPU
Fixing heater
Highvoltage circuit
block
Contact PCB
• Primary...
Service Manual - Page 43
... light-blocking plate is at PS2, '1'.)
Delivery sensor
Vertical path roller paper sensor
J62 J102-7 DIG3
PS3
-9 -8
DPD
+5V
J132-3
PS4
-5 -4
PDP
When PS3 has ...-1
TH1
-6
TH2 Scanner thermistor
J131-1 TH2
-2
When PS5 has detected paper, '0'. (The light-blocking plate is at PS5, '1'.)
When Q751 has detected paper, '1'. (The light-blocking plate is at PS751, '0'.)
When the surface...
Service Manual - Page 125
... moved through the transfer, separation, feeding, and fixing assemblies to monitor the movement of paper.
Notation
Name
PS3 Delivery sensor
Remarks
PS4 Vertical path roller paper sensor
PS5 Single-feeder paper sensor
Single-feeder model only
Q751 Pre-registration roller paper sensor
Table 5-101
COPYRIGHT © 1999 CANON INC. it is controlled by the registration...
Service Manual - Page 126
... REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER 5 PICK-UP/FEEDING SYSTEM
DC controller PCB
Pre-registration roller paper detection signal(RPD)
Vertical path roller paper detection signal(PDP)
Delivery paper detection signal(DPD)
Delivery roller
Copy tray
PS3 Fixing assembly
Cassette
Multifeeder pickup roller Photosensitive drum Registration roller
Static eliminator
Q751...
Service Manual - Page 127
The registration roller controls paper so that its leading edge will match the leading edge of the vertical path roller.
Then, when the cassette ...
Cassette pickup solenoid drive signal (CPUSD*) Pickup clutch solenoid drive signal (PUSLD*)
Pickup clutch
SL5 Copy paper
Cassette pickup rollers
Figure 5-103 (Multifeeder type)
COPYRIGHT © 1999 CANON INC. When the pickup clutch...
Service Manual - Page 129
..., the pickup roller is rotated once again to execute pickup operation, thereby ensuring correct pickup (as for recycled paper). Re-Pickup (cassette pickup) If the vertical path roller paper sensor (PS4) does not detect copy paper within 0.5 sec after the pickup clutch solenoid (SL1) turns on once again about 1.3 sec after the pickup clutch...
Service Manual - Page 134
... Start key ON
STBY INTR
SCFW
SCRV
SCFW
SCRV LSTR STBY
Main motor (M1) Pickup clutch solenoid (SL1)
Cassette pickup solenoid (SL5) Vertical path roller paper sensor (PS4) Pre-registration roller paper sensor (Q751) Registration clutch solenoid (SL2) Delivery sensor (PS3)
Scanner
0.1sec (approx.)
II I
Forward Reverse
Figure 5-111
5-10
COPYRIGHT © 1999...
Service Manual - Page 136
... as a jam.
Detecting Jams
The machine is equipped with four paper sensors used to find out the presence/absence of copy paper and whether copy paper is moving properly.
• Vertical path roller paper sensor (PS4) • Single-feeder paper sensor (PS5) • Pre-registration roller paper sensor (Q751) • Delivery sensor (PS3) The presence/absence of...
Service Manual - Page 138
... INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) fied if copy paper doesnot reach the vertical path roller paper sensor within a specific period of Paper in about 1.5 sec, and indicate the Add Paper message. CHAPTER 5 PICK-UP/FEEDING SYSTEM
Copy Start key ON
STBY
INTR
indication SCFW
Pickup clutch solenoid...
Service Manual - Page 139
..., stop the operation immediately, and flash the Jam indicator.
CHAPTER 5 PICK-UP/FEEDING SYSTEM
3.
SCRV
SCFW
indication SCRV
Cassette pickup solenoid (SL5)
Jam check Vertical path roller paper sensor (PS4) Main motor (M1)
0.5sec Normal
Figure 5-120
0.5sec Jam
1.5sec
COPYRIGHT © 1999 CANON INC.
registration roller sensor within a specific period of...
Service Manual - Page 140
... a specific period of feeding faults, the machine will identify the condition as a registration paper stationary jam, stop the operation immediately, and flash the Jam indicator.
SCRV
SCFW
indication SCRV
Vertical path roller paper sensor (PS4)
Jam check Pre-registration roller paper sensor (Q751) Main motor (M1)
2.6sec Normal
2.6sec Jam 1.5sec
Figure 5-121
6. Copy...
Service Manual - Page 312
...)
11-47 CHAPTER 11 TROUBLESHOOTING
5. Sensor
Connector
Checks
PS1 Scanner home position sensor (SCHP)
PS2 Lens home position sensor (LHP)
PS4 Vertical path roller paper sensor (PDP)
Q751 Pre-registration roller paper sensor (RPD)
J101-3 J109-10 J132-5 J108-3
During standby, move the detecting lever by hand. Reference: The photointerrupers other than those...
Service Manual - Page 320
...; 1999 CANON INC. Is the problem corrected? Is the problem corrected? YES Inform the user that the cartridge is foggy vertically. 8 The copy has black lines. (vertical, fuzzy, thick) 9 The copy has black lines. (vertical, fine)
Cause Scanner
Transfer guide assembly Cartridge
Step 1
2
Checks Clean the scanning lamp, reflecting plate, lens, and mirror. YES End...
Service Manual - Page 339
... PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Are the lens cable, pulley, and rail normal? Is the problem corrected? Is the vertical path roller paper sensor (PS4) normal? (For instructions on how to check the photointerrupters, see p. 11-47.)
YES/NO YES
NO YES
Action Remove the jam...
Service Manual - Page 341
... problem corrected? NO Replace the sensor or the lever.
CHAPTER 11 TROUBLESHOOTING
1 Pickup Assembly
Cause
Cassette
Copy paper
Copy paper
DC controller PCB, Pickup clutch Registration roller drive assembly Vertical path roller paper sensor (PS4) Pickup roller, Vertical path roller, Roll
Step 1 2 3
4 5
6 7
Checks Does the problem occur when the cassette is selected as the source...
Service Manual - Page 343
...
of the side guide plate of the cassette; Check the claw for deformation.
2 Wrinkles
Cause Pickup assembly, Vertical path roller, Registration roller Copy paper
Fixing assembly Inlet guide
Step 1
2
3 4
Checks Turn off the power while copy paper is moist. Measure the force of the spring of the cassette. (universal cassette only) 3. Even out...
Service Manual - Page 356
... position sensor (PS1)
4
Lens home position sensor (PS2)
5 Lens solenoid (SL3)
6
Pickup clutch solenoid (SL1)
7
Cassette pickup solenoid (SL5)
8
Vertical path roller paper sensor (PS4)
9
Registration clutch solenoid (SL2)
10
Pre-registration roller paper sensor (Q751)
11
Scanning lamp (LA1)
12
Primary AC bias
13
Primary DC bias
14
Developing AC bias
15...
Service Manual - Page 357
...
A-2
1 Pickup motor (M2)
2 Belt motor (M1)
ADF 3 4
Original detection sensor (PI3)
Registration paper sensor (PI2)
5 Delivery sensor (PI1)
1 Main motor (M1)
2
Scanner / lens drive motor (M2...(SL1)
7
Cassette pickup solenoid (SL5)
Vertical path roller 8 paper sensor (PS4)
9
Registration clutch solenoid (SL2)
10 Copier
Pre-registration roller paper sensor (Q751)
11 Scanning lamp (LA1)...
Service Manual - Page 360
...18 19
J301 2 1
J302
CONTROL PANEL PCB
J3
VZ1
J4
Fixing film
Varistor 1
1 2 J303
Power switch
A-5
Copier
J901
1 2 3 4
Main motor M1
M
BP701
BP705
PR
+24VU GND MMD MLOCK
[120V]
H
N
FT2
FT4...
PS5
Lens home Single-feeder
position sensor paper sensor
(Single-feeder
type only)
SL5 Cassette pickup solenoid
PS4 Vertical path roller
paper sensor
COPYRIGHT © 1999 CANON INC....
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