Duplex Paper Transport Misfeed - Minolta CF2002 Service Manual

(10) Duplex Paper Transport Misfeed (AD-14)
<Detection Timing>
Type
Duplex transport mis-
feed detection
Detection of paper left
in Duplex
<Action>
Manual Feed Paper Take-Up Sensor (PC15)
Duplex Unit Transport Sensor 1 (PI1)
Duplex Unit Transport Sensor 2 (PC1)
Switchback Motor (M1)
Duplex Unit Motor (M2)
Step Action
1 Initial check items
2 PC15 I/O check
3 PI1 I/O check
4 PC1 I/O check
5 M1 operation check
6 M2 operation check
7 Change PWB-A.
8 Change PWB-IO.
The Manual Feed Paper Take-Up Sensor (PC15) is not blocked
even after the lapse of a given period of time after a Duplex paper
take-up sequence has been started.
The Duplex Unit Transport Sensor 2 (PC1) is not blocked even
after the lapse of a given period of time after the Duplex Unit
Transport Sensor 1 (PI1) has been blocked by the paper.
The Duplex Unit Transport Sensor 1 (PI1) or Duplex Unit Transport
Sensor 2 (PC1) 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
Duplex Control Board (PWB-A)
IO Board (PWB-IO)
Ref. Page
T-12
T-4 to T-10
T-4 to T-10
T-4 to T-10
T-3
T-3
—
—
T-27
Description
WIRING DIAGRAM
Control Signal
—
—
—
—
PWB-A PJ3A-1 to 4
(Pulse Output))
PWB-A PJ2A-1 to 4
(Pulse Output))
—
—
Location
(Electrical
Component)
—
1-B (Copier)
4-H
2-C
7-D
2-H
—
—