Misfeed At Duplex Paper Transport Section - Konica Minolta bizhub c20 Service Manual

Field Service Ver. 1.0 Sep. 2008
17.3.6

Misfeed at duplex paper transport section

A. Detection timing
Type
The duplex transport sensor (PS26) is not blocked even after the lapse of a given
Detection of mis-
period of time after the paper has unblocked PS26.
feed at duplex
paper transport
The registration sensor (PS4) is not unblocked even after the lapse of a given
section
period of time after the paper has unblocked PS26.
Detection of paper
The duplex transport sensor (PS26) is unblocked when the power switch is turned
left at duplex paper
ON, a door or cover is opened and closed, or a misfeed or malfunction is reset.
transport section
B. Action
Duplex transport roller clutch (CL13)
Duplex transport sensor (PS26)
Registration sensor (PS4)
Step
1 Initial check items
2 PS26 sensor check
3 PS4 sensor check
4 CL13 operation check
5 Change PRCB.
Relevant Electrical Parts
Action
Description
Print control board (PRCB)
WIRING DIAGRAM
Control Signal
⎯
PRCB PJ27-3 (ON)
PRCB PJ15-3 (ON)
PRCB PJ26-6 (REM)
⎯
17. Jam display
Location
(Electrical Com-
ponent)
⎯
C to D-3
C to D-5
C to D-3
⎯
327