18. Jam Display Field Service Ver. 1.0 Aug. 2005
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Troubleshooting
18.3.7 Misfeed at Tray 2 take-up/Vertical Transport section
A. Detection Timing
B. Action
Type Description
Detection of misfeed at
Tray 2 take-up/Vertical
Transport section
The leading edge of the paper does not block the Vertical Conveyance Sen-
sor (PC2) even after the set period of time has elapsed after the 2nd
Drawer Paper Feed Clutch (CL4) has been energized.
The Synchronizing Roller Sensor (PC1) is not blocked even after the set
period of time has elapsed after the leading edge of the paper has blocked
the Vertical Conveyance Sensor (PC2).
Detection of paper left in
Tray 2 take-up/Vertical
Transport section
The Vertical Conveyance Sensor (PC2) 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
Synchronizing Roller Sensor (PC1)
Vertical Conveyance Sensor (PC2)
2nd Drawer Paper Feed Clutch (CL4)
Mechanical Control Board (PWB-A)
Step Action
WIRING DIAGRAM
Control Signal
Location
(Electrical
Component)
1 Initial check items - -
2 PC1 I/O check PWB-A PJ11A-5 (ON) M-8
3 PC2 I/O check PWB-A PJ22A-9 (ON) D-7
4 CL4 operation check PWB-A PJ21A-10 (ON) D-10
5 Change PWB-A - -
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