Toshiba e-studio600 Service Manual page 476

21)Uneven light distribution
Defective area
Original glass
Main charger
Discharge LED
Scanner
Exposure lamp
e-STUDIO520/600/720/850 TROUBLESHOOTING
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, mir-
rors, lens, and original glass (espe-
cially the position of shading
correction plate) dirty?
6 Is the exposure lamp discolored or
degraded?
Fig.5-21
Clean the original glass.
Clean or replace them.
Clean the discharge LED.
Replace the discharge LED.
Clean them.
Replace the exposure lamp.
5 - 148
Prescription
March 2005 © TOSHIBA TEC