7. Jam display
Field Service Ver. 1.0 Jun. 2008
DF-612/SP-503/MS-501
T
roubleshooting
7.3
Sensor layout
7.4
Solution
7.4.1
Turnover section misfeed
A. Detection timing
B. Action
[1]
Transport sensor (PS7)
[3]
Registration sensor (PS8)
[2]
Exit/turnover sensor (PS9)
A0EYF4C501DA
[2]
[3]
[1]
Type
Description
Detection of misfeed at
turnover section
• The transport sensor (PS7) is not turned ON by the passage of paper
after a lapse of predefined time after the exit/turnover clutch (CL3) is
turned OFF.
Relevant electrical parts
Transport sensor (PS7)
Exit/turnover clutch (CL3)
DF control board (DFCB)
Step
Action
WIRING DIAGRAM
Control signal
Location (Electrical
component)
1
Initial check items
—
—
2
PS7 I/O check, sensor check
DFCB CN6-3 (ON)
DF-612 F to G-6
3
CL3 operation check
DFCB CN2-5 to 6
DF-612 F to G-2
4
Change DFCB
—
—
44
Service Manual Y109
850
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