Field Service Ver. 1.0 Jun. 2008
7.4.2
Paper feed section misfeed
A. Detection timing
Type
Detection of misfeed at
paper feed section
B. Action
Transport sensor (PS7)
Take-up clutch (CL1)
Step
1
Initial check items
2
PS7 I/O check, sensor check
3
CL1 operation check
4
Change DFCB
7.4.3
Transport section misfeed
A. Detection timing
Type
Detection of misfeed at
transport section
B. Action
Registration sensor (PS8)
Exit/turnover sensor (PS9)
Registration clutch (CL2)
Step
1
Initial check items
2
PS8 I/O check, sensor check
3
PS9 I/O check, sensor check
4
CL2 operation check
5
Change DFCB
Y109850-7
• The transport sensor (PS7) is not turned ON by the passage of paper
after a lapse of predefined time after the take-up clutch (CL1) is turned
ON.
Relevant electrical parts
Action
• The registration sensor (PS8) is not turned ON by the passage of paper
after a lapse of predefined time after the registration clutch (CL2) is
turned ON.
• The exit/turnover sensor (PS9) is not turned ON after a lapse of pre-
defined time after the registration sensor (PS8) is turned ON by the pas-
sage of paper.
Relevant electrical parts
Action
Service Manual
Description
DF control board (DFCB)
WIRING DIAGRAM
Control signal
—
DFCB CN6-3 (ON)
DFCB CN2-1 to 2
—
Description
DF control board (DFCB)
WIRING DIAGRAM
Control signal
—
DFCB CN5-10 (ON)
DFCB CN6-4 (ON)
DFCB CN2-1 to 2
—
7. Jam display
Location (Electrical
component)
—
DF-612 F to G-6
DF-612 F to G-1
—
Location (Electrical
component)
—
DF-612 F to G-5
DF-612 F to G-5
DF-612 F to G-1
—
45