Misfeed At Duplex Transport Section - Konica Minolta bizhub C650 Service Manual

15. Jam display
15.3.13

Misfeed at duplex transport section

A. Detection timing
Type
1
Detection of
misfeed at duplex
transport section
1
Detection of paper
1
left in duplex
transport section
B. Action
ADU transport motor/1 (M31)
ADU transport motor/2 (M32)
ADU paper passage sensor/1 (PS47)
1
ADU paper passage sensor/2 (PS48)
Step
1 Initial check items
2 PS47 I/O check, sensor check
3 PS48 I/O check, sensor check
4 M31 operation check
5 M32 operation check
6 Change PFTDB
7 Change PRCB
596
1
• A sheet of paper does not unblock the ADU paper passage sensor/2 (PS48)
after a predetermined period of time has elapsed since the sheet blocks the
ADU paper passage sensor/1 (PS47).
• A sheet of paper does not unblock the ADU paper passage sensor/1 (PS47)
after a predetermined period of time has elapsed since the sheet blocks the
PS47.
• ADU paper passage sensor/1 (PS47) is blocked, or ADU paper passage sen-
sor/2 (PS48) is unblocked when the main power switch is turned ON, a door or
cover is opened and closed, or a misfeed or malfunction is reset.
Relevant parts
Action
Field Service Ver. 8.0 Jun. 2008
Description
Paper feed/transport drive board (PFTDB)
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
—
PFTDB CN17BPFTDB-6 (ON)
PFTDB CN17BPFTDB-3 (ON)
PFTDB CN17PFTDB-14 to 17
PFTDB CN17PFTDB-10 to 13
—
—
Location (Electri-
cal component)
—
P-8
P-7
P-9
P-8
—
—