Field Service Ver. 1.0 Dec. 2008 17. Jam Display
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TROUBLESHOOTING
17.3.10 Misfeed at Tray 4 take-up/Vertical Transport section (PC-206)
A. Detection Timing
B. Action
Type Description
Detection of misfeed at
Tray 4 take-up/Vertical
Transport section
The leading edge of the paper does not block the Tray4 Vertical Convey-
ance Sensor (PC126-PF) even after the set period of time has elapsed
after the Tray4 Paper Feed Motor (M123-PF) has been energized.
The Tray3 Vertical Conveyance Sensor (PC117-PF) is not blocked even
after the set period of time has elapsed after the Tray4 Vertical Conveyance
Sensor (PC126-PF) is blocked by the paper.
The Tray4 Vertical Conveyance Sensor (PC126-PF) is not unblocked even
after the set period of time has elapsed after the Tray4 Vertical Conveyance
Sensor (PC126-PF) has been blocked by the paper.
Detection of paper left in
Tray 4 take-up/Vertical
Transport section
The Tray4 Vertical Conveyance Sensor (PC126-PF) is blocked when the
Main Power Switch is set to ON, a door or cover is opened and closed, or a
misfeed or malfunction is reset.
The Tray4 Paper Take-Up Sensor (PC125-PF) is blocked when the Main
Power Switch is set to ON, a door or cover is opened and closed, or a mis-
feed or malfunction is reset.
Relevant Electrical Parts
Tray4 Paper Take-Up Sensor (PC125-PF)
Tray4 Vertical Conveyance Sensor (PC126-PF)
Tray3 Vertical Conveyance Sensor (PC117-PF)
Tray4 Paper Feed Motor (M123-PF)
Main Control Board (PWB-C2 PF)
Step Action
WIRING DIAGRAM
Control Signal
Location
(Electrical
Component)
1 Initial check items - -
2 PC125-PF I/O check
See P.25 of the PC-108/PC-206 service
manual.
3 PC126-PF I/O check
4 PC117-PF I/O check
5 M123-PF operation check
6 Change PWB-C2 PF - -
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