Field Service Ver. 1.0 Aug. 2005 7. Jam Display
25
PC-102/PC-202
Troubleshooting
7.3.3 Tray4 Paper Take-Up section/Vertical Transport section misfeed (PC-202)
A. Detection timing
B. Action
Type Description
Tray4 Paper Take-Up section/
Vertical transport section
misfeed detection
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) is energized.
The Tray3 Vertical Conveyance Sensor (PC117-PF) is not blocked even
after the lapse of a given period of time after the Tray4 Vertical Convey-
ance Sensor (PC126-PF) has been blocked by a paper.
The Tray4 Vertical Conveyance Sensor (PC126-PF) is not unblocked
even after the lapse of a given period of time after PC126-PF has been
blocked by a paper.
Tray4 detection of paper
remaining
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
misfeed 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
components)
1 Initial check items - -
2 PC125-PF sensor check PWB-C2 PF PJ10C2 PF-8 (ON) PC-202 G-6
3 PC126-PF sensor check PWB-C2 PF PJ11C2 PF-2 (ON) PC-202 G-6
4 PC117-PF sensor check PWB-C2 PF PJ6C2 PF-11 (ON) PC-202 C-4
5 M123-PF operation check PWB-C2 PF PJ5C2 PF-1 to 4 PC-202 G-6
6 PWB-C2 PF replacement - -
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