Canon iR105 Service Manual page 384

CHAPTER 6 TROUBLESHOOTING
9) Fit the door switch actuator into the door switch assembly.
10) Turn on the power switch.
Once you have turned on the power switch, do not touch the potential sen-
sor assembly.
11) Make the following selections in service mode, and check to make sure that the reading
is between 0 and 30 during initial rotation: COPIER>DISPLAY>DPOT>DPOT-K.
1. If the reading is as indicated in Method 1 but is not in Method 2, sus-
REF.
2. If the reading is as indicated in both Method 1 and Method 2, assume
12) Turn off the power switch.
13) Remove the potential sensor checker electrode.
14) Mount the potential sensor support plate.
15) Turn on the power switch.
6-52
pect dirt on the sensor or a fault in the potential measurement unit.
that the signal path and the operation from the potential sensor unit to
the microprocessor on the DC controller PCB are normal.
COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR105 REV.0 JULY 2001