14.2 Solution; P-5: Idc Sensor (Front) Failure; Idc Sensor (Rear) Failure; P-6: Cyan Imaging Unit Failure - Konica Minolta Magicolor 8650 Service Manual

14. Malfunction code

14.2 Solution

14.2.1

P-5: IDC sensor (front) failure

14.2.2 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 output the adjustments list,
and check the IDC value of the level history1.
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.
14.2.3

P-6: Cyan imaging unit failure

14.2.4

P-7: Magenta imaging unit failure

14.2.5

P-8: Yellow imaging unit failure

14.2.6

P-9: Black imaging unit failure

Imaging unit /C
Imaging unit /M
Imaging unit /Y
Imaging unit /K
Step
Select [ProcessAdjustment] → [Dmax Density] and, if the setting value is negative, readjust.
1
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.
288
Confidential – for internal use only, do not distribute
Field Service Ver. 2.0 Nov. 2007
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