Konica Minolta bizhub C650 Service Manual page 657

16. Malfunction code
16.2.10 P-14: Skew correction trouble
IDC registration sensor/F (IDCS/F)
IDC registration sensor/R (IDCS/R)
Step
1 Check the drive transmission portion of the Imaging Unit and correct as necessary.
2 Clean the contact of the imaging unit connector if dirty.
Reinstall or reconnect IDCS/F or IDCS/R, sensor shutter or connector, if it is installed or con-
3
nected improperly.
4 Clean IDCS/For IDCS/R if it is dirty.
5 Change IDCS/F or IDCS/R.
6 Change imaging unit.
7 Change PH unit.
8 Change REYB/PH.
9 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.458
• 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.458
16.2.11 P-16: PC charge cleaning trouble 1
16.2.12 P-18: PC charge cleaning trouble 2
Imaging unit /K
Charge cleaning motor/K (M15)
Charging cleaner home sensor (PS43)
Charging cleaner return sensor (PS44)
Step
1 PS43 I/O check, sensor check.
2 PS44 I/O check, sensor check.
3 M15 operation check.
4 Change imaging unit /K.
5 Change M15.
6 Change PRCB.
602
Field Service Ver. 8.0 Jun. 2008
Relevant parts
PH relay board (REYB/PH)
Printer control board (PRCB)
PH unit
Imaging unit
Action
Relevant parts
Printer control board (PRCB)
Action