Misfeed At Exit Section; Misfeed At Switch Back Section - Konica Minolta bizhub c20 Service Manual

Field Service Ver. 1.0 Sep. 2008
17.3.9

Misfeed at exit section

A. Detection timing
Type
Detection of
• The exit sensor/2 (PS31) is not unblocked even after the lapse of a given period
misfeed at exit
section
Detection of paper • The exit sensor/2 (PS31) is blocked when the main power switch is turned ON,
left in exit section
B. Action
Exit sensor/2 (PS31)
Step
1 Initial check items
2 PS31 sensor check
3 Change PRCB.
17.3.10

Misfeed at switch back section

A. Detection timing
Type
Detection of
• The switchback sensor (PS30) is not blocked by the paper even after the lapse
misfeed at switch
back section
Detection of paper • The switchback sensor (PS30) is unblocked when the main power switch is
left in switch back
section
B. Action
Switchback sensor (PS30)
Step
1 Initial check items
2 PS30 sensor check
3 Change PRCB.
of time after the paper has blocked PS31.
a door or cover is opened and closed, or a misfeed or malfunction is reset.
Relevant electrical parts
Action
of a given period of time after a switchback operation has been started.
turned ON, a door or cover is opened and closed, or a misfeed or malfunction is
reset.
Relevant electrical parts
Action
Description
Print control board (PRCB)
WIRING DIAGRAM
Control signal
⎯
PRCB PJ33-6 (ON)
⎯
Description
Print control board (PRCB)
WIRING DIAGRAM
Control signal
⎯
PRCB PJ33-3 (ON)
⎯
17. Jam display
Location (electri-
cal component)
⎯
C to D-1
⎯
Location (electri-
cal component)
⎯
C to D-1
⎯
329