White Banding (In Feeding Direction) - Toshiba e-STUDIO 2555C Service Manual

8.5.12

White banding (in feeding direction)

Cause/Section Step
LED head 1
Main charger 2
grid
Developer unit 3
4
5
Drum 6
Transfer unit 7
8
9
Transfer unit 10
Transport path 11
Discharge 12
LED
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Fig.8-16
Check item
Is there foreign matter or dust on the
LED head?
Is there foreign matter on the
charger grid?
Is there foreign matter inside the
doctor blade?
Is there foreign matter on the drum
seal?
Do any paper fibers or dirt adhere to
the developer unit and contact with
the drum?
Is there scratch or foreign matter on
the drum surface?
Is there scratch or foreign matter on
the transfer belt surface?
Are the harness or foreign matters in
contact with the transfer belt
surface?
Is there any scratch or hole on the
1st/2nd transfer roller?
Is there any foreign matter on the
2nd transfer facing roller?
Does the toner image touch foreign
matter after transfer, before entering
the fuser unit?
Has any LED of discharge LED gone
out?
8 - 297
Measures
Clean the LED head.
Remove foreign matter.
Remove foreign matter.
Remove foreign matter.
Remove the paper fibers or dirt.
Replace the drum.
Replace the transfer belt.
Correct or remove them.
Replace the 1st/2nd transfer roller.
Remove foreign matter or clean the
roller.
Remove foreign matter.
Replace the discharge LED.
e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
8