Toshiba e-STUDIO556 Service Manual page 813

8.4.21 Uneven light distribution
Defective area
Original glass
Main charger
Discharge LED
Scanner
Exposure lamp
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Fig. 8-21
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 reflector, exposure lamp,
mirrors, lens, and original glass
(especially the position of shading
correction plate) dirty?
6 Is the exposure lamp discolored or
degraded?
8 - 261
Prescription
Clean the original glass.
Clean or replace them.
Clean the discharge LED.
Replace the discharge LED.
Clean them.
Replace the exposure lamp.
e-STUDIO556/656/756/856/557/657/757/857
ERROR CODE AND TROUBLESHOOTING
8