6-34
CHAPTER 6 TROUBLESHOOTING
5.
Faulty stitcher
6.
Faulty paper pushing plate motor (related to PI14S)
Checks
Are the front and rear
stitchers and bases installed
correctly?
Is the stitching home position
switch of the front and the
rear stitchers normal?
Do the front and the rear
stitchers operate at a specific
timing?
Cause
Stitcher (installation)
Stitching home position
switch (MS7S/MS5S)
Saddle stitcher controller
PCB
Stitcher motor (M7S/
M6S)
Step
1
2
3
Yes/No
No
No
Yes
No
Action
Install them correctly.
Replace the front or
rear stitcher.
Check the wiring
between the stitcher
and the saddle stitcher
controller PCB. If
normal, replace the
controller PCB.
Replace the front or
the rear stitcher.
Checks
Check the paper pushing plate
home position sensor. Is the
sensor normal?
Check the paper pushing plate
top position sensor. Is the
sensor normal?
Does the paper pushing plate
motor operate at a specific
timing?
Replace the paper pushing
plate motor. Is the problem
corrected?
Cause
Paper pushing plate
home position sensor
(PI14S)
Paper pushing top
position sensor (PI15S)
Saddle stitcher controller
PCB
Paper pushing plate
motor (M8S)
Saddle stitcher controller
PCB
Step
1
2
3
4
Yes/No
No
No
Yes
No
Yes
No
Action
Replace the sensor.
Replace the sensor.
Replace the saddle
stitcher controller PCB
Check the paper
pushing plate drive
mechanisms. If a fault
is found, correct it.
Otherwise, go to step
3.
End.
Replace the saddle
stitcher controller
PCB.
Summary of Contents for MJ-1027
Page 1: ...SERVICE MANUAL FINISHER MJ 1027 1028 File No SME040041A0 R04102169300 TTEC Ver01_2007 09 ...
Page 5: ...ii ...
Page 9: ...vi ...
Page 70: ...2 41 CHAPTER 2 FINISHER UNIT BASIC OPERATION Height sensor PS1 Paper Figure 2 240 ...
Page 101: ...3 15 CHAPTER 3 SADDLE STITCHER UNIT BASIC OPERATION Figure 3 301 ...
Page 104: ...3 18 CHAPTER 3 SADDLE STITCHER UNIT BASIC OPERATION 2 A3 LD Paper Path 3 sheets Figure 3 303 ...
Page 116: ...3 30 CHAPTER 3 SADDLE STITCHER UNIT BASIC OPERATION Cam Mount Figure 3 404 ...
Page 173: ...6 CHAPTER 6 TROUBLESHOOTING II ARRANGEMENT OF ELECTRICAL PARTS A Finisher Unit ...
Page 235: ...2 17 2 HIGASHIGOTANDA SHINAGAWA KU TOKYO 141 8664 JAPAN ...