Konica Minolta Bizhub-C31P, Service Manual, Page: 307 / 370

6. Jam display Field Service V er. 1.0 Apr. 200 8
18
Lower Feeder Unit
T
roubleshooting
6.4.2 Misfeed at the tray 3/ tray 4 media feed section
A. Detection timing
B. Action
Type Description
Detection of mis-
feed at tray 3/ tray 4
media feed section
The media does not block the media feed sensor (PS2) even after the lapse of a
given period of time after the media feed clutch (CL1) has turned ON.
Detection of media
left at tray 3/ tray 4
media feed section
The media feed sensor (PS2) is not blocked when the main power switch is turned
ON, a door or cover is opened and closed, or a misfeed or malfunction is reset.
Relevant electrical parts
Media feed sensor (PS2)
Media feed clutch (CL1)
Transport motor (M1) PC control board (PCCB)
Print control board (PRCB)
Step Action
WIRING DIAGRAM
Control signal
Location
(electrical com-
ponent)
1 Initial check items
⎯ ⎯
2 PS2 sensor check PCCB PJ5-6 (ON) B to C-4
3 CL1 operation check PCCB PJ6-2 (REM) B to C-5
4 M1 operation check PCCB PJ3-1 to 4 B to C-5
5 Change PCCB.
⎯ ⎯
6 Change PRCB.
⎯ ⎯