658
JAN 2006
Ver. 5.2
DP-3510/3520/3530/4510/4520/4530/6010/6020/6030
11.1.7.3.2. Saddle Stitch Unit
1. E7-41 (Faulty Paper Positioning Plate)
2. E7-42 (Faulty Paper Folding Motor)
Cause Checks
Yes
/ No
Action
Paper Positioning
Plate Home Position
Sensor (PI7S)
Check the paper positioning plate home
position sensor. Is the sensor normal?
No Replace the sensor.
Saddle Stitch
Controller PCB
Do the paper positioning plates operate
at a specific timing?
Yes Replace the Saddle Stitch
Controller PCB.
Paper Positioning
Plate Motor (M4S)
No Check the positioning plate
drive mechanism. If a fault
is found, correct it.
Otherwise, go to step 3.
Saddle Stitch
Controller PCB
Replace the paper positioning plate
motor. Is the problem corrected?
Yes End.
No Replace the Saddle Stitch
Controller PCB.
Cause Checks
Yes
/ No
Action
Paper Folding Motor
Clock Sensor (PI4S)
Check the paper folding motor clock
sensor. Is the sensor normal?
No Replace the sensor.
Paper Folding Home
Position Sensor
(PI21S)
Check the paper folding home position
sensor. Is the sensor normal?
No Replace the sensor.
Saddle Stitch
Controller PCB
Does the paper folding motor operate at
a specific timing?
Yes Replace the Saddle Stitch
Controller PCB.
Paper Folding Motor
(M2S)
No Check the paper folding
roller drive mechanism. If a
fault is found, correct it.
Otherwise, go to step 4.
Saddle Stitch
Controller PCB
Replace the paper folding motor. Is the
problem corrected?
Yes End.
No Replace the Saddle Stitch
Controller PCB.