Toshiba e-STUDIO 2555C Service Manual page 765

Replacement part
Harness
[C3E1] Drum/cleaner/charger unit replacement (old-new) detection abnormality
Classification
Copy process related service call
Step Check Item
Check if the old/new detection bar
1 of the drum cleaner unit is being
ejected.
Check if the harness of the drum
old/new detection switch in the
2
drum cleaner unit is open circuited.
Is the drum old/new detection
switch of the drum cleaner unit
3
normal?
Check if the drum old/new
detection pusher is moved to the
escape position while the coupling
of the drum cleaner unit is rotated
4
by hand.
(Is a driving in the old/new
detection pusher section
transmitted?)
Check that the coupling of the
drum TBU drive unit is driven
5
properly.
Check that the drum TBU drive
motor rotates properly. (Input
6
check: 03-112)
Check that the connector of the
drum TBU drive motor is
7
connected properly.
Check if the harness of the drum
8
TBU drive motor is open circuited.
Check that the connector of the
LGC board (CN360) is connected
9
properly.
Is the harness of the LGC board
10
normal?
Is the LGC board normal?
11
Replacement part
Drum old/new detection switches
Drum TBU motor
LGC board
© 2012-2013 TOSHIBA TEC CORPORATION All rights reserved
Drum/cleaner/charger unit replacement (old-new) detection
abnormality
Result
Yes
No
Yes
No Replace the harness.
Yes
No Replace the drum old/new detection
switch.
Yes
No Correct the drum old/new detection
pusher so that it is moved to the
escape position.
Yes Correct the engagement of the
couplings in the drum TBU drive unit
and the drum cleaner unit.
No
Yes
No
Yes
No
Yes
No Replace the drum TBU drive motor.
Yes
No Reconnect the connector.
Yes
No Replace the harness.
Replace the LGC board.
8 - 209
Measure
Contents
Measure
Measure
e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
Next
Step
4
2
3
4
8
3
9
6
9
7
9
8
9
11
11