Replacing The Potential Sensor - Canon imagePRESS C1 P Service Manual

Chapter 13
[3]
3) Execute the primary charging assembly cleaning from service mode.
(primary charging wire cleaning: COPIER > FUNCTION > CLEANING
> WIRE-CLN)
4) Select the service mode (execution of potential control: COPIER >
FUNCTION > DPC > DPC) and then press [OK].
5) Turn OFF/ON the main power.

13.3.3 Replacing the Potential Sensor

imagePRESS C1 P / imagePRESS C1
When replacing the potential sensor, go through the following procedure.
The potential sensor and the potential control PCB are adjusted in pairs. Re-
placement of them must be performed at the same time.
1) Pull out the potential sensor cable [1] from the processing unit hole [2].
[1]
2) Return the processing unit [1] and the fixing/feeding unit [2].
[1]
[2]
3) Connect the cable [1].
13-6
[1] [3]
[2]
F-13-8
[2]
F-13-9
F-13-10
4) Connect the cable to the connector [2] of the potential sensor [1].
5) Attach the potential sensor [1] by reference to the boss [A] of the electrode
for checking potential (FY9-xxxx) [3].
6) Connect the clip [4] for checking the potential sensor to the main body
frame (GND).
0014-0479
[4]
Check to see that potential sensor is attached in an appropriate direction to
the electrode for checking the potential sensor.
7) After turning ON the main power, set the service mode COPIER > FUNC-
TION > INSTALL > AINR-OFF as '1'.
8) Monitor the fixing upper roller temperature by the service mode COPIER
> DISPLAY > ANALOG > FIX-UC and go through the following oper-
ations depending on conditions:
- In case the temperature indicated as 50 deg C or less, place hand on the
shutter assembly [1] when the temperature reaches 145 deg C. Release
hand from the shutter assembly when the drum rotation stops (approx.
20sec).
- In case the temperature indicated as 50 deg C or more, place hand on the
shutter assembly [1] when the temperature reaches 158 deg C. Release
hand from the shutter assembly when the drum rotation stops (approx.
20 sec).
[1]
F-13-11
[3]
[A] [2]
F-13-12
F-13-13
[1]
[1]
[A]