Canon iR5000i Service Manual page 658

CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
Cassette latch
2) Is the movement of the cassette open button assembly normal?
NO:
Spring, Lever
3) Move up the pickup roller releasing lever with your finger. Does the
NO:
Cassette 3 open/closed sensor (PS15), Cassette 4 open/closed sensor (PS16)
4) When the cassette is inserted, is the voltage of the following connec-
NO:
Cassette 3 lifter motor (M20), Cassette 4 lifter motor (M21), DC controller PCB
5) Turn on the main power switch, and set the meter range to 30 VDC;
YES: Check the wiring and the motor drive PCB; if normal, replace the
NO:
4.2.6 Pickup fails (manual feed)
Wiring
1) Is the connector (to the machine) of the manual pickup tray assem-
NO:
General condition
2) Is the leading edge of paper as far as the registration roller?
YES: See "The registration roller fails to rotate."
Feeding roller, Separation roller
3) Is the orientation of the feeding roller and the separation roller cor-
NO:
Manual feed paper sensor (PS23)
4) When paper is placed on the manual feed pickup tray, does bit 0 of
NO:
4-42 T
Mount it correctly.
pickup roller move down?
Remove the pickup assembly, and check the spring and the lever.
tors on the DC controller PCB about 5 V?
Sensor
Cassette 3 open/closed sensor
Cassette 4 open/closed sensor
Check the sensor flag and the wiring; if normal, replace the sensor.
then, connect the - probe of the meter to GND and the + probe to
the following connectors from the DC controller PCB. When the
cassette is inserted, does the voltage change from about 0 to 24 V?
Motor
Cassette 3 lifter motor
Cassette 4 lifter motor
motor.
Replace the DC controller PCB.
bly connected correctly?
Connect the connector correctly.
rect?
Mount the roller correctly.
COPIER>I/O>DC-CON>IO-P01 change from '1' to '0'?
Check the wiring and the sensor flag; if normal, replace the sensor.
COPYRIGHT © 2001 CANON INC.
+
J110-A11
J110-B11
+ -
J105-11 GND
J105-10 GND
2000 2000 2000 2000 CANON iR5000i/iR6000i REV.0 JUNE 2001
-
J110-A10
J110-B10