e-STUDIO350/352/353/450/452/453
© 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved
TROUBLESHOOTING
5 - 120
12) Black banding (in the feeding direction)
Defective area
Step
Check items
Prescription
Scanner
1
Is there a foreign matter on the light
path?
Clean the slit, lens and mirrors.
Shading correction
plate
2
Is there dust or stains on part of the
original glass where the shading
correction plate is placed.
Clean the plate.
Main charger grid
3
Is there a foreign matter on the grid? Remove the foreign matter.
4
Is the grid dirty or deformed?
Clean or replace the grid.
Main charger
5
Is there a foreign matter on the main
charger?
Remove the foreign matter.
6
Is the charger wire dirty or
deformed?
Clean or replace the charger wire.
7
Is there a foreign matter inside the
charger case?
Remove the foreign matter.
8
Is the inside of the charger case
dirty?
Clean the inside of the case.
Cleaner
9
Is there paper dust sticking to the
cleaning blade edge?
Clean or replace the cleaning blade.
10
Is the cleaning blade working prop-
erly?
Check the pressurization of the drum
cleaning blade.
11
Has the used toner been recovered
properly?
Clean the toner recovery auger.
Fuser unit
12
Is the fuser roller surface dirty or
damaged?
Clean or replace the fuser roller.
13
Is the thermistor dirty?
Clean the thermistor.
Drum
14
Are there scratches on the drum
surface?
Replace the drum.
Laser optical unit
15
Is there a foreign matter or stain on
the slit glass?
Remove the foreign matter or the stain.
Feeding direction