Canon imageRUNNER ADVANCE C5255 Series Service Manual page 713

E Detailed Occurance Items
code code area
E025 0310 05 Title Timeout error in detection of C Toner Bottle Seal/Release
Sensor
Description Failure in detection about the changes of ON => OFF
=> ON with the sensor when the cap of the C Toner
Container was sealed/released.
Remedy 1. Use the attached tool to manually rotate the Main Drive
Unit to check the operation.
2. If the Main Drive Unit side failed to rotate, check the
drive (to see damage of the gear, etc.)
If it's results in NG, replace the Main Drive Unit.
3. If the Main Drive Unit side failed to rotate while the
Drive rotates, turn the Set-on Hopper Unit to check the
rotating operation. If it's results in NG, replace the Set-on
Hopper Unit.
4. If both the Main Drive Unit and the Set-on Hooper Unit
rotates together once the Main Drive Unit is manually
rotated while sealing/releasing of the container works
properly, check the sensor harness (to see if the harness
is caught, disconnected or physically removed).
5. Replace the sensor which has been checked in step 4.
6. (If the above measures do not solve the problem,)
Replace the Drum Driver PCB (UN4).
NOTE: When checking the operation after performing
the remedy, go through the following to clear the error:
COPIER>FUNCTION>CLEAR>ERR; then, turn OFF and
then ON the power. After performing the remedy, perform
the toner replacement operation (from toner removal to
reset/recovery) from the Control Panel at least once, and
check that the replacement operation can be performed
normally.
E025 0320 05 Title C Mismatched phase
Description Set-on Unit detects opening of the C Toner Container as
well as the Small Door.
Remedy 1. Check if the Small Door can be closed.
2. Close the Small Door and turn OFF and then ON the
power to check recovery.
3. Check the installation of the Open/Close Sensor of the
Small Door (to see if it's installed at the correct position).
4. Check the Sensor Harness (to see if the harness is
caught, disconnected or physically removed).
5. (If the above measures do not solve the problem,)
Replace the Drum Driver PCB (UN4).
7
Error•Jam•Alarm > Error Code > Error Code Details
Description
7 Error•Jam•Alarm > Error Code > Error Code Details
E Detailed Occurance Items
code code area
E025 03A0 05 Title Error in C Toner Container Cam HP Sensor (PS7)
Description Unable to detect the change in the Toner Container Cam
HP Sensor status (ON -> OFF) when opening the Toner
Cap so that open and close status of the Toner Cap
cannot be judged.
Remedy Identify the cause of the error whether it is due to
mechanical problem to open/close the Toner Cap or
problem at the Toner Container Cam HP Sensor side.
1. Check if the Toner Container Cam HP Sensor is soiled
and the installation of the sensor.
2. Rotate the Set-on Drive Shaft a little with the attached
tool, and check the service mode (COPIER> I/O> DCON>
P024 bit6) to see that the output value of the sensor is
changed.
Since it is difficult to check the screen while rotating it,
repeat the operation to rotate it a little and check the
screen until the value is changed.
If it is normal, the output value of the sensor is changed
when opening/closing the Toner Cap. Even if it is normal,
be sure to perform step 4 and later steps.
2-1. If there is an error in rotation of the Set-on Drive
Shaft, check the drive system such as gears.
If it is damaged, replace the Set-on Drive Unit and then
perform step 4 and later steps.
2-2. When the Set-on Drive Unit is not driven although
the Set-on Drive Shaft rotates, check if it is driven by
removing the Hopper Unit.
If it is not driven, replace the Hopper Unit and then
perform step 4 and later steps.
2-3. When the output value of the sensor is not changed
although the Set-on Drive Unit is driven, check the Sensor
Harness (to see if the harness is caught, disconnected or
physically removed).
If there is no problem, replace the sensor. After checking
the output value in step 2, perform step 4 and later steps.
3. If the problem is not solved by replacing the foregoing
parts, replace the Drum Driver PCB (UN4) and then
perform step 4 and later steps.
4. Clear the error in service mode (COPIER>
FUNCTION> CLEAR> ERR), and then turn OFF and then
ON the main power.
5. Replace the toner (reinstall the removed Toner
Container) at least once in user mode (Adjustment/
Maintenance> Replace Specified Toner), and check that
toner replacement can be performed normally.
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Description
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