6-37
CHAPTER 6 TROUBLESHOOTING
11. Disconnected sensor connector (PI15S)
12. Faulty microswitch
Checks
Are the connectors of the
paper pushing plate top
position sensor and the saddle
stitcher controller PCB
connected correctly?
Is the wiring between the
sensor and the saddle stitcher
broken?
Is 5 VDC present at J9-13 on
the saddle stitcher controller
PCB?
Is J9-14 on the saddle stitcher
controller PCB grounded
correctly?
Cause
Paper pushing plate
home position top
position sensor (PI15S;
disconnected)
Wiring
Power supply
Ground
Step
1
2
3
4
Yes/No
No
Yes
No
No
Action
Connect the
connectors.
Correct the wiring.
Replace the saddle
stitcher controller
PCB.
Checks
Check the switch actuator of
the inlet door. Do the switch
and the sensor operate
correctly?
Check the inlet door switch. Is
the switch normal?
Measure the voltage at J10-8
on the saddle stitcher
controller PCB with the inlet
cover open. Is it 5 V?
Measure the voltage between
J19-1 (+) and J19-2 (
−
) on the
finisher controller PCB. Is it
24 V?
Cause
Switch actuator
Inlet door switch
(MS1S)
Inlet cover sensor (PI9S)
Power supply, wiring
Step
1
2
3
4
Yes/No
No
No
Yes
No
Yes
Action
Correct the
mechanism.
Replace the switch.
The sensor is faulty.
Replace the sensor.
Replace the finisher
controller PCB.
Check the wiring
between J19 on the
finisher controller
PCB and J1 on the
saddle stitcher
controller PCB. If a
fault is found, correct
it. Otherwise, replace
the saddle stitcher
controller PCB.
Содержание MJ-1027
Страница 1: ...SERVICE MANUAL FINISHER MJ 1027 1028 File No SME040041A0 R04102169300 TTEC Ver01_2007 09 ...
Страница 5: ...ii ...
Страница 9: ...vi ...
Страница 70: ...2 41 CHAPTER 2 FINISHER UNIT BASIC OPERATION Height sensor PS1 Paper Figure 2 240 ...
Страница 101: ...3 15 CHAPTER 3 SADDLE STITCHER UNIT BASIC OPERATION Figure 3 301 ...
Страница 104: ...3 18 CHAPTER 3 SADDLE STITCHER UNIT BASIC OPERATION 2 A3 LD Paper Path 3 sheets Figure 3 303 ...
Страница 116: ...3 30 CHAPTER 3 SADDLE STITCHER UNIT BASIC OPERATION Cam Mount Figure 3 404 ...
Страница 150: ...4 20 CHAPTER 4 MECHANICAL CONSTRUCTION 7 Remove the tension springs front 5 rear 6 Figure 4 216 Figure 4 217 5 6 ...
Страница 173: ...6 CHAPTER 6 TROUBLESHOOTING II ARRANGEMENT OF ELECTRICAL PARTS A Finisher Unit ...
Страница 235: ...2 17 2 HIGASHIGOTANDA SHINAGAWA KU TOKYO 141 8664 JAPAN ...