P-14: Skew Correction Trouble; P-21: Color Regist Test Pattern Failure - Konica Minolta bizhub C360 Service Manual

Field Service Ver. 2.1 Feb. 2012
18.3.9

P-14: Skew correction trouble

IDC registration sensor/MK (IDCS/MK)
IDC registration sensor/YC (IDCS/YC)
Drum unit/Y,M,C,K
Step
1 Check the drive transmission portion of the drum unit and correct as necessary.
2 Clean the contact of the drum unit connector if dirty.
3 Reinstall or reconnect IDCS/MK assy or IDCS/YC assy, sensor shutter or connector, if it is
installed or connected improperly.
4 Clean IDCS/MK or IDCS/YC if it is dirty.
5 Check the PHREYB connector for proper connection and correct as necessary.
6 Check the PRCB connector for proper connection and correct as necessary.
7 Change IDCS/MK assy or IDCS/YC assy.
8 Change drum unit.
9 Change PH unit.
10 Change PHREYB.
11 Change PRCB.
NOTE
• After the PH unit is replaced, reset the skew default position for each color. Touch
keys as follows for this setting.
[Service Mode] → [Machine] → [Skew adjustment] → [Skew adjustment]
See P.386
• When this alert code is displayed, according to the list, take actions to address the
problem. After the problem is resolved, select [Service Mode] → [Machine] →
[Skew adjustment] → [Skew adjustment reset] and perform the skew adjustment
reset.
See P.387
18.3.10

P-21: Color regist test pattern failure

Transfer belt unit
PH unit
IDC registration sensor shutter solenoid (SD2)
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 SD2 operation check.
4 Change the PH unit.
5 PRCB ICP2 conduction check.
6 Change PRCB.
Relevant parts
PH relay board (PHREYB)
Printer control board (PRCB)
PH unit
Action
Relevant parts
Printer control board (PRCB)
Action
18. MALFUNCTION CODE
575