White Banding Or White Viod(In The Feeding Direction) - Toshiba e-STUDIO205L Service Handbook

6.4.9

White banding or white viod(in the feeding direction)

Defective area
Laser optical unit
Main charger grid
Toner cartrige
Developer unit
Drum
Transport path
Discharge LED
Scanner
e-STUDIO205L/255/305/355/455
ERROR CODE AND TROUBLESHOOTING
Fig. 6-9
Step Check items
1 Is there a foreign matter or stain on
the slit glass?
2 Is there a foreign matter or dew on
the charger grid?
3 Is the adhered foreign matter
blocking the laser light path?
4 Is the floated lid of the developer
bottle blocking the laser light path?
5 Is the developer material transported
properly?
6 Is there a foreign matter or dew on
the drum seal?
7 Is the upper drum seal of the
developer unit in contact with the
drum?
8 Is there a foreign matter on the drum
surface?
9 Does the toner image contact with
any foreign matter before the paper
enters the fusing section after the
separation?
10 Is any of the discharge LEDS off?
11 Is there a foreign matter on the light
path?
12 Are the original glass (especially the
position of shading correction plate)
mirror and lens dirty?
6 - 128
Prescription
Remove the foreign matter or stain.
Remove the foreign matter.
Remove the foreign matter.
Check the lid and place it properly.
Remove the foreign matter if there is
any. *1)
Remove the foreign matter or dew.
Correct the position of the drum seal
or replace it.
Replace the drum. If there is a
convex foreign matter adhering to the
drum surface, it indicates that the
blade edge at this area is worn out. In
this case, replace both the drum and
the drum cleaning blade.
Remove the foreign matter.
Replace the discharge LED.
Remove the foreign matter.
Clean them.
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