Toshiba e-STUDIO557 - 8.4.12 Black banding (in the feeding direction)

e-STUDIO556/656/756/856/557/657/757/857 © 2011 - 2014 TOSHIBA TEC CORPORATION All rights reserved
ERROR CODE AND TROUBLESHOOTING
8 - 250
8.4.12 Black banding (in the feeding direction)
Fig. 8-12
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 3 Is there a foreign matter or stain on
the charger grid, or in the main
charger case?
Remove the foreign matter or stain.
4 Is the main charger grid deformed? Replace the main charger grid.
5 Is there a foreign matter on the main
charger grid?
Remove the foreign matter.
Drum 6 Are there scratches on the drum
surface?
Replace the drum.
Laser optical unit 7 Is there a foreign matter or stain on
the 2 slit glasses?
Remove the foreign matter or the
stain.
8 Is the inside of the main charger case
dirty?
Clean the inside of the main charger
case.
Cleaner 9 Is there paper dust sticking to the
drum cleaning blade edge?
Clean or replace the cleaning blade.
10 Does the drum cleaning blade work
smoothly?
Push the cleaning blade by hand. If
its move is not smooth enough, clean
the section where the blade is
installed, then install it again.
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 fuser roller thermistor dirty? Clean the fuser roller thermistor.
Feeding direction