Canon imageRUNNER ADVANCE C5255 Series Service Manual page 712

E Detailed Occurance Items
code code area
E025 02C0 05 Title Error in Cover Sensor (PS14) in M Toner Container
Description Unable to detect opening of the Toner Container Inner
Cover when removing the Toner Container.
Remedy Identify the cause of the error whether it is due to link
mechanism to open the Toner Container Inner Cover or
problem at the Toner Container Inner Cover Sensor side.
1. Perform the user mode (Adjustment/Maintenance>
Replace Specified Toner) to check if the Toner Container
Inner Cover opens normally (damage, slide of shaft area,
etc.).
2. Check if the Toner Container Inner Cover Sensor is
soiled and the installation of the sensor.
3. Check the service mode (COPIER> I/O> DCON> P024
bit9) to see that the output value of the Toner Container
Inner Cover Sensor is changed normally when opening/
closing the Toner Container Inner Cover.
If it is normal, the value becomes 0 by rotating the Set-on
Drive Shaft with the attached tool and opening the Toner
Container Inner Cover. When closing the Toner Container
Inner Cover by hand, it becomes 1.
3-1. When the Toner Container Inner Cover is not opened
although the Set-on Drive Shaft rotates, check the drive
system from upstream (Set-on Drive Unit -> Hopper Unit
-> Bottle Base Unit -> Toner Container Inner Cover Unit).
If it is damaged, replace the damaged part and then
perform step 5 and later steps.
3-2. When the output value is not changed normally
although the Toner Container Inner Cover can be opened/
closed, check the Sensor Harness (to see if the harness
is caught, disconnected or physically removed, *including
the Relay Connector).
If there is no problem, replace the sensor. After checking
the output value in step 3, perform step 5 and later steps.
4. If the problem is not solved by replacing the foregoing
parts, replace the Drum Driver PCB (UN4) and then
perform step 5 and later steps.
5. Clear the error in service mode (COPIER>
FUNCTION> CLEAR> ERR), and then turn OFF and then
ON the main power.
6. 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.
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 0300 05 Title Error in lock of the C Toner Container Motor
Description The C Toner Container Motor is detected to be locked /
lock detection.
Remedy 1. Use the attached tool to manually rotate the Main Drive
Unit to check the operation (by comparing with other
color, etc.)
If the manual rotating operation results in NG, perform the
following because it's due to mechanical overload.
If there is no problem, go to step 5.
2. Remove the Delivery Tray to check the position of the
projection attached at the back of the gear in the Hopper
Assembly. Compare with the gear that works properly.
If the position of the projection is displaced, check the
following.
Check the lever to open/close the Toner Small Cover (to
see if the operation is smooth, no damage with the lever,
the lever works OK (no wrong move to up/down). If the
lever is faulty, replace the lever.
3. Remove the Main Drive Unit to check the unit (to see
damage, etc.)
If it's results in NG, replace the Main Drive Unit.
4. Manually turn the gear on the cam in the hopper unit to
check the rotation.
If it's results in NG, replace the Set-on Hopper Unit.
5. (If the above measures do not solve the problem)
Replace the Toner Container Motor (M11).
Replace the Drum Driver PCB (UN4).
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Description
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