Konica Minolta bizhub C203 Service Manual page 513

16. Malfunction code
16.2.10 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.
16.2.11 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.
16.2.12 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.
468
Field Service Ver. 1.0 Jul. 2007
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