Image Reading Section Misfeed - Konica Minolta bizhub C650 Service Manual

Field Service Ver. 5.0 Jan. 2008
8.4.5

Image reading section misfeed

A. Detection timing
Type
Detection of paper left in
image reading section
B. Action
Reading motor (M1)
Reading roller pressure/retraction motor (M4)
Regist sensor (PS3)
Reverse regist sensor (PS8)
Before read sensor (PS9)
2
Step
1 Initial check items
Make the adjustment of original stop posi-
2 tion.
P.36
3 PS3 I/O, sensor check
4 PS8 I/O, sensor check
5 PS9 I/O, sensor check
6 M1 operation check
7 M4 operation check
8 DFCB replacement
The before read sensor (PS9) is not turned OFF after a lapse of a given
time after the regist sensor (PS3) is turned OFF.
The before read sensor (PS9) is not turned OFF after a lapse of a given
time after the reverse regist sensor (PS8) is turned OFF.
Relevant electrical parts
Action
Description
DF control board (DFCB)
WIRING DIAGRAM
Control signal
—
—
DFCB PJ10DFCB-11 (ON)
DFCB PJ12DFCB-2 (ON)
DFCB PJ14DFCB-8 (ON)
DFCB PJ9DFCB-1 to 3
DFCB PJ6DFCB-4 to 5
—
8. Jam display
Location
(Electrical
components)
—
—
DF-611/610
C-2 to 3
DF-611/610 I-2
DF-611/610 C-5
<DF-611>
DF-611/610 I-7
<DF-610>
DF-611/610 I-8
<DF-611>
DF-611/610 I-3
<DF-610>
DF-611/610 I-4
—
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