P-21: Color Regist Test Pattern Failure; P-22: Color Regist Adjust Failure; P-27: Secondary Transfer Atvc Failure - Konica Minolta Magicolor 8650 Service Manual

Field Service Ver. 2.0 Nov. 2007
14.2.7

P-21: Color regist test pattern failure

Transfer belt unit
PH unit
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.
3 Change the PH unit.
4 Change PRCB.
14.2.8

P-22: Color regist adjust failure

IDC registration sensor /MK (IDCS/MK)
IDC registration sensor/CY (IDCS/CY)
Step
1 Slide out the imaging unit and reinstall it in position.
2 Reinstall or reconnect IDCS/MK or IDCS/CY if it is installed or connected improperly.
3 Check the vertical transport guide for installed position and correct as necessary.
4 Change PRCB.
14.2.9

P-27: Secondary transfer ATVC failure

High voltage unit (HV)
Printer control board (PRCB)
Step
Check roller opposed to the 2nd image transfer roller is grounded.
1
Clean the joint or correct if necessary.
2 Check the image transfer entrance guide for proper installation and correct if necessary.
Check that the spring does not come off during the pressure operation of the 2nd transfer roller
3
and correct if necessary.
Check the contact at the joint of the 2nd image transfer assy and HV.
4
Clean the joint or correct if necessary.
5 Change the transfer belt unit.
6 Change HV.
7 Change PRCB.
Confidential – for internal use only, do not distribute
Relevant parts
Printer control board (PRCB)
Action
Relevant parts
Printer control board (PRCB)
Action
Relevant parts
Image transfer entrance guide
2nd image transfer assy
Transfer belt unit
Action
14. Malfunction code
289