Toshiba e-STUDIO181 Service Handbook page 196

21.Uneven light distribution
Defective area
Original glass
Main charger
Discharge LED
Scanner
Exposure lamp
e-STUDIO181/211
TROUBLESHOOTING
Fig. 5-22
Step Check items
1 Is the original glass dirty?
2 Are the needle electrode, main
charger grid and main charger case
dirty?
3 Is the discharge LED dirty?
4 Is any of the discharge LEDs off?
5 Are the original glass (especially the
position of shading correction plate)
and CIS unit dirty?
6 Is the CIS unit degraded?
5 - 42
Prescription
Clean the original glass.
Clean or replace them.
Clean the discharge LED.
Replace the discharge LED.
Clean them.
Replace the CIS unit.
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