Canon iR7086, Service Manual

Page: 290 / 735

Chapter 7
7-44
F-7-119
7.10.17.3 When Replacing the Potential Sensor/Potential
Control PCB
0011-8746
iR7105 / iR7095 / iR7086
The machine remains powered after the main power switch is turned off as
long as the power plug is connected to the power outlet. Be sure to discon-
nect the power plug from the power outlet.
1) Turn off the power.
2) Remove the developing assembly, and slide out the process unit.
3) Disconnect the connector [1] of the potential sensor.
F-7-120
4) Remove the 2 screws [1], and detach the potential sensor support plate [2].
F-7-121
5) Put back the developing assembly and the process unit.
6) Connect the connector [1] of the potential sensor.
F-7-122
7) Fit the potential checker electrode (FY9-3041) [2] to the potential sensor
[1].
F-7-123
When fitting the checker electrode to the potential sensor, make sure that the
magnet of the checker electrode will not come into contact with the potential
sensor cover.
8) Connect the cable [1] of the potential sensor checker electrode to the
frame assembly (GND) [2] of the machine.
Never bring the clip into contact with the sensor cover. Be sure to fit it fully
away from the sensor window.
F-7-124
9) Fit the door switch actuator to the door switch assembly [1] and the laser
shutter assembly [2].
10) Turn on the powor.
11) Execute the following service mode items:
COPIER > FUNCTION > DPC > OFST
12) Record the value of <OFST> on the service sheet.
13) Turn off the main power switch.
14) Detach the potential sensor checker electrode.
15) Put back the potential sensor support plate.
16) Turn on the power.
7.10.18 Dust-Collecting Roller
7.10.18.1 Removing the Dust-Collecting Roller
0010-8885
iR7105 / iR7095 / iR7086
1) Remove the pre-transfer charging assembly.
2) Remove the two screws [1], and detach the motor cover [2].
[3]
[2]
[1]
[1]
[1]
[2]
[1]
[1]
[1]
[2]
[1]
[2]