Konica Minolta magicolor 1600W, Service Manual

Page: 135 / 216

16. Jam display Field Service V er. 1.0 Nov. 200 8
98
magicolor 1600W magicolor 1650EN
T
roubleshooting
16.3.3 Misfeed at fusing section
A. Detection timing
B. Action
Type Description
Detection of misfeed
at fusing section
The media does not block the exit sensor (PS4) even after the lapse of a prede-
termined period of time after the registration roller solenoid (SD2) has been
energized.
The exit sensor (PS4) is unblocked within a predetermined period of time after it
has been blocked by the media.
The transport motor, polygon motor, and rack motor are energized even after
the lapse of a predetermined period of time after media information has been
created.
Detection of media
left in fusing section The exit sensor (PS4) is blocked when the power switch is turned ON, a cover is
opened and closed, or a misfeed or malfunction is reset.
Relevant electrical parts
Exit sensor (PS4)
Registration roller solenoid (SD2) Printer control board (PRCB)
MFP board (MFPB)
Step Action
WIRING DIAGRAM
Control signal
Location (electrical com-
ponent)
1 Initial check items
⎯ ⎯
2
Check the MFPB connector for proper con-
nection and correct as necessary.
⎯ ⎯
3
Check the PRCB connector for proper con-
nection and correct as necessary.
⎯ ⎯
4 PS4 sensor check. PRCB PJ6-3 (ON)
1600W: B to C-6
1650EN: C-6
5 SD2 operation check. PRCB PJ10-4 (REM)
1600W: C-9 to 10
1650EN: C-9
6 Change MFPB.
⎯ ⎯
7 Change PRCB.
⎯ ⎯