Konica Minolta Magicolor 5440 DL - Manual (Page 282)

Duplex Option Field Service Ver. 2.0 April 2005 Jam Display
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1.5.3 Misfeed at Duplex Option paper conveyance section
A. Detection Timing
B. Action
Type Description
Detection of mis-
feed at Duplex
Option paper con-
veyance section
The paper does not block the Synchronizing Roller Sensor (PC4) even after the
lapse of a given period of time after the sensor on the Duplex Board (PWB-E DU)
has been blocked.
The sensor on the Duplex Board (PWB-E DU) is not unblocked even after the
lapse of a given period of time after it has been blocked.
Detection of paper
left at Duplex
Option paper con-
veyance section
The sensor on the Duplex Board (PWB-E DU) is blocked when the Power Switch
is turned ON, a door or cover is opened and closed, or a misfeed or malfunction is
reset.
Relevant Electrical Parts
Synchronizing Roller Sensor (PC4)
Duplex Door Sensor (PC2 DU)
Duplex Transport Motor (M1 DU)
Duplex Reverse Motor (M2 DU) Duplex Board (PWB-E DU)
Mechanical Control Board (PWB-A)
Step Action
WIRING DIAGRAM
Control Signal
Location
(Electrical
Component)
1 Initial check items - -
2 PC4 sensor check PWB-A PJ15A-3 (ON) 2-H
3 PC2 DU sensor check PWB-E DU PJ4E DU-3 (ON)
3-F~G
(Duplex
Option)
4 M1 DU operation check -
7-D~E
(Duplex
Option)
5 M2 DU operation check -
3-D
(Duplex
Option)
6 Change PWB-E DU. - -
7 Change PWB-A. - -
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