Toshiba MJ-1027 Service Manual page 196

CHAPTER 6 TROUBLESHOOTING
20. Faulty second feed motor (related to PI5)
Cause
Second feed motor (M8)
Shutter mechanism
Shutter open detection
sensor (PI5)
Finisher controller PCB
21. Faulty second feed motor (related to MS4)
Cause
Second feed motor (M8)
Shutter mechanism
Shutter closed detection
switch (MS4)
Finisher controller PCB
6-30
Step Checks
1 Does the second feed motor in
reverse at a specific timing?
2 Are the shutter and the shutter
upper/lower bar engaged
correctly?
3 Turn the feed roller 2 in
reverse by hand. Does the
shutter upper/lower bar move
up/down?
4 Is the shutter open detection
sensor normal?
Step Checks
1 Does the second feed motor
rotate in reverse at a specific
timing?
2 Are the shutter and the shutter
upper/lower bar engaged
correctly?
3 Turn the feed roller 2 in
reverse by hand. Does the
shutter upper/lower bar move
up/down?
4 Is the shutter closed detection
switch normal?
Yes/No Action
No Replace the second
feed motor or the
finisher controller
PCB.
No Engage them correctly.
No Correct mechanism
from the shutter upper/
lower bar to the gear
of the feed roller 2.
No Replace the sensor.
Yes Replace the finisher
controller PCB.
Yes/No Action
No Replace the second
feed motor or the
finisher controller
PCB.
No Engage them correctly.
No Correct the
mechanism from the
shutter upper/lower
bar to the gear of the
feed roller 2.
No Replace the switch.
Yes Replace the finisher
controller PCB.