Canon Image Reader-A1 iR5000i Service Manual page 671

Drum motor (M1), DC controller PCB
3) Turn on the main power switch, and measure the voltage of the
YES: Replace the drum motor.
NO:
4.1.9 E013
Waste toner feedscrew (locked)
1) Is the waste toner feedscrew drive gear pushing the waste toner
YES: Connect the connector.
Waste toner feedscrew lock detecting switch (MSW2), DC controller PCB
2) Make the following selections in service mode: COPIER>I/O>DC-
YES: It is likely that the feedscrew inside the waste toner pipe is pre-
NO:
4.1.10 E014
Connectors
1) Are the connectors of the fixing motor connected?
NO:
Fixing motor (M19), DC controller PCB
2) When the Start key is pressed, does the voltage between J106-B16
YES: Replace the fixing motor.
NO:
COPYRIGHT © 2001 CANON INC.
CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
connectors of the drum motor. Is it as follows?
J602-2:5 V
J602-3:5 V
J602-1:0 V
Check the wiring; if normal, replace the DC controller PCB.
feedscrew lock detecting switch (MSW2)?
CON. Is bit 15 of IO-P02 '0'?
vented from rotating because of some fault. If the outlet of the
waste toner pipe is clogged with toner, remove the waste toner
drive unit, and remove the toner. If otherwise, try turning the main
motor clockwise by hand. If the screw rotates, wait and see what
happens; if the screw does not rotate, replace the waste toner feed-
ing unit.
Check the wiring; if normal, replace the DC controller PCB.
Connect the connectors.
(+) and J106-B18 (-) on the DC controller PCB change from 0 to
about 5 V?
Check the wiring; if normal, replace the DC controller PCB.
2000 2000 2000 2000 CANON iR5000i/iR6000i REV.0 JUNE 2001
4-23 T