Toshiba e-STUDIO200L, Service Manual

Page: 535 / 708

June 2004 © TOSHIBA TEC e-STUDIO200L/202L/230/232/280/282 TROUBLESHOOTING
5 - 105
5
12)Black banding (in the feeding direction)
Fig. 5-12
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 cor-
rection plate is placed. Clean the plate.
Main charger 3 Is there a foreign matter on the main
charger grid? Remove the foreign matter.
4 Is the main charger grid dirty or
deformed? Clean or replace the main charger
grid.
5 Is there a foreign matter on the main
charger? Remove the foreign matter.
6 Is the needle electrode dirty or
deformed? Clean or replace the needle elec-
trode.
7 Is there a foreign matter inside the
main charger case? Remove the foreign matter.
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 Is the drum cleaning blade working
properly? 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 sur-
face? 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