P-6: Cyan Imaging Unit Failure; P-28 Idc Sensor (Rear) Failure; P-8: Yellow Imaging Unit Failure - Konica Minolta bizhub C353 Service Manual

Field Service Ver. 3.0 Jan. 2008
16.2.4 P-5: IDC sensor (front) failure
16.2.5

P-28 IDC sensor (rear) failure

IDC registration sensor/MK (IDCS/MK)
IDC registration sensor/YC (IDCS/YC)
Step
1 Wipe clean the surface of the transfer belt with a soft cloth, if it is dirty.
2 Change the image transfer belt unit if the transfer belt is damaged.
Reinstall or reconnect IDCS/MK or IDCS/YC, sensor shutter or connector, if it is installed or con-
3
nected improperly.
4 Clean IDCS/MK or IDCS/YC if it is dirty.
5 Check the HV connector for proper connection and correct as necessary.
Open/close the front door, run an image stabilization sequence, and select [State Confirmation]
→ [Level History 1] to check the IDC value.
6
IDC1: IDCS/MK, IDC2: IDCS/CY
If the value is 1.0 V or less, change IDCS/MK or IDCS/CY.
7 Change PRCB.
16.2.6

P-6: Cyan imaging unit failure

16.2.7 P-7: Magenta imaging unit failure
16.2.8

P-8: Yellow imaging unit failure

16.2.9 P-9: Black imaging unit failure
Imaging unit /C
Imaging unit /M
Imaging unit /Y
Imaging unit /K
Step
Select [Imaging Process Adjustment] → [D Max Density] and, if the setting value is negative,
1
readjust.
2 Check the drive transmission portion of the Imaging Unit and correct as necessary.
Clean the IDC registration sensor/MK (IDCS/MK) or IDC registration sensor/CY (IDCS/CY) win-
3
dow if dirty.
4 Clean the contact of the imaging unit connector if dirty.
5 Check the HV connector for proper connection and correct as necessary.
6 Change imaging unit.
7 Change the transfer belt unit.
8 Change PRCB.
Relevant parts
Printer control board (PRCB)
High voltage unit (HV)
Transfer belt unit
Action
Relevant parts
Transfer belt unit
High voltage unit (HV)
Printer control board (PRCB)
Action
16. Malfunction code
483