Canon iR5000 Service Manual page 653

CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
Right upper cover, Right lower cover
4) Are the right upper cover and the right lower cover closed fully?
NO:
Pressure spring
5) Are the springs of the right upper cover and the right lower cover
exerting pressure on the vertical path rollers 1, 2, 3, and 4?
NO:
Pre-registration motor (M17), vertical path duplex/feeding motor (M25), Vertical path upper
motor (M26), Vertical path lower motor (M27)
6) Open the right upper cover and the right lower cover, and put pa-
per over the cover open/closed sensor assembly; then, turn on
(MTR-ON) the motor in question in service mode
(COPIER>FUNCTION>PART-CHK>MTR). Does the vertical path
rollers 1, 2, 3, and 4 or the pre-registration roller rotate?
NO:
Registration roller clutch
7) Is the leading edge of paper as far as the registration roller assem-
bly?
YES: See "The registration roller fails to rotate."
Pickup assembly
8) Open the right upper cover and the right lower cover, and put pa-
per over the door switch. When the Start key is pressed, does the
feeding/separation roller rotate to move paper normally?
NO:
Right deck pickup motor (M11), Left deck pickup motor (M24), Cassette 3/4 pickup motor
(M12), DC controller PCB
9) Set the meter range to 30 VDC, and connect the meter probes to the
connectors on the DC controller PCB of the motor in question as
indicated. Does the voltage change from 24 to 0 V when the Start
key is pressed?
YES: Check the wiring and the motor driver PCB; if normal, replace the
NO:
4-40 T
Download Free Service Manual at http://printer1.blogspot.com
Close the covers. If there is a gap, correct it.
Check the pressure springs.
Motor
Pre-registration motor
Vertical duplex/ feeding motor
Vertical path upper motor
Vertical path lower motor
Check the wiring and the motor driver PCB; if normal, replace the
motor.
Check the pickup assembly by referring to 5. "Troubleshooting
Feeding Faults."
Motor
Right deck pickup motor
Left deck pickup motor
Cassette 3/4 pickup motor
motor.
Replace the DC controller PCB.
COPYRIGHT © 2000 CANON INC.
Code
22
15
17
16
+
J104-A5, A6
J104-B4, B3
J104-A11, A12
2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000
-
GND
GND
GND