E012; E013 - Canon iR105 Service Manual

4.1.8 E012

Relay PCB, Drum motor (M0)
1) Turn on the power switch, and measure the voltage between con-
NO:
DC controller PCB
2) Does the voltage between J512-B10 (+) and J512-B8 (-) on the DC
NO:
Connector
3) Are the connectors J601 an J602 of the drum motor connected
NO:
YES: Replace the drum motor.

4.1.9 E013

Waste toner feedscrew (locked)
1) Is the waste tone feedscrew drive gear pushing the waste toner
NO:
MSW2, DC controller PCB
2) Make the following selections in service mode: COPIER>I/O>DC-
YES: Replace the MSW2.
NO:
COPYRIGHT© 2001 CANON INC.
nectors J1721-9 and -10 on the relay PCB when all doors are
closed. Is it 38 V?
If the connection of the cable up to the relay PCB is normal, re-
place the relay PCB.
controller PCB change from 0 to 5 V when the Start key is pressed?
If the connection of the cable up to the DC controller PCB is nor-
mal, replace the DC controller PCB.
firmly?
Connect them firmly.
feedscrew lock detecting switch (MSW2)?
The feedscrew inside the waste toner pipe is likely to be stuck. Re-
move the waste toner pipe, and try turning the screw by hand. If it
turns easily, mount it back and see what happens. If the screw can-
not be turned by hand, replace the waste toner pipe, and remove
the cause.
CON. Is bit 6 of P003 '0', indicating clogging with toner?
Replace the DC controller PCB.
2000 2000 2000 2000
CHAPTER 6 TROUBLESHOOTING
CANON iR105 REV.0 JULY 2001
6-91