Initial Check Items; Transport Section Misfeed - Konica Minolta bizhub 250 Service Manual

9. Jam Display
9.3.2

Transport Section Misfeed

A. Detection Timing
Type
Finisher Transport Section
misfeed detection
Finisher Paper Exit
Section misfeed detection
Detection of paper
remaining in the Transport
Section
B. Action
Paper Exit Sensor (PC4)
Entrance Sensor (PC4-FN)
Transport Sensor (PC5-FN)
Step
1

Initial check items

2 PC4 I/O check
3 PC4-FN I/O check
4 PC5-FN I/O check
5 Change PWB-A FN
6 Change PWB-A
38
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The Entrance Sensor (PC4-FN) is not blocked even after the set period of
time has elapsed after the copier's Paper Exit Sensor (PC4) is blocked by
the paper.
The Entrance Sensor (PC4-FN) is not unblocked even after the set period
of time has elapsed after the copier's Paper Exit Sensor (PC4) is unblocked
by the paper.
The Transport Sensor (PC5-FN) is not blocked even after the set period of
time has elapsed after the Entrance Sensor (PC4-FN) is blocked by the
paper.
The Transport Sensor (PC5-FN) is not unblocked even after the set period
of time has elapsed after the Entrance Sensor (PC4-FN) is unblocked by
the paper.
The Entrance Sensor (PC4-FN) is blocked when the Power Switch is set to
ON, a door or cover is opened and closed, or a misfeed or malfunction is
reset.
The Transport Sensor (PC5-FN) is blocked when the Power Switch is set to
ON, a door or cover is opened and closed, or a misfeed or malfunction is
reset.
Relevant Electrical Parts
Action
PWB-A FN PJ25A FN-4 (ON)
PWB-A FN PJ20A FN-9 (ON)
Field Service Ver. 1.0 Aug. 2005
Description
Main Control Board (PWB-A FN)
Mechanical Control Board (PWB-A)
WIRING DIAGRAM
Control Signal
-
PWB-A PJ18A-11 (ON)
-
-
Location
(Electrical Component)
-
M-12
FS-508 G-4
FS-508 B-5
-
-