Field Service Ver. 2.0 Jul. 2009 17. JAM DISPLAY
705
TROUBLESHOOTING
17.3.57 Misfeed at duplex pre-registration section
17.3.58 Misfeed at duplex transport section
Relevant parts
ADU transport motor/1 (M31)
ADU transport motor/2 (M32)
Timing roller sensor (PS38)
OHP detection sensor (PS40)
Paper feed/transport drive board (PFTDB)
Printer control board (PRCB)
Step Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1 Initial check items — —
2 PS38 I/O check, sensor check PFTDB CN4-6 (ON) Q-5
3 PS40 I/O check, sensor check PFTDB CN4-2 (ON) Q-4 to 5
4 M32 operation check PFTDB CN3-10 to 13 Q-8
5 M31 operation check PFTDB CN3-14 to 17 Q-8
6 Change PFTDB — —
7 Change PRCB — —
Relevant parts
ADU transport motor/1 (M31)
ADU transport motor/2 (M32)
ADU paper passage sensor/1 (PS47)
ADU paper passage sensor/2 (PS48)
Paper feed/transport drive board (PFTDB)
Printer control board (PRCB)
Step Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1 Initial check items — —
2 PS47 I/O check, sensor check PFTDB CN3-3 (ON) Q-7
3 PS48 I/O check, sensor check PFTDB CN3-6 (ON) Q-7
4 M31 operation check PFTDB CN3-14 to 17 Q-8
5 M32 operation check PFTDB CN3-10 to 13 Q-8
6 Change PFTDB — —
7 Change PRCB — —
Y110571-1 Service Manual
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