e-STUDIO163/166/203/206
© 2005 - 2009 TOSHIBA TEC CORPORATION All rights reserved
TROUBLESHOOTING
5 - 36
16)Uneven image density
Fig. 5-16
Defective area
Step
Check items
Prescription
Main charger
1
Is the main charger dirty?
Clean or replace the needle elec-
trode and main charger grid.
Transfer charger
2
Is the transfer charger dirty?
Clean the transfer charger.
3
Is the transfer charger wire dirty?
Clean the transfer charger wire.
Laser optical unit
4
Is there any foreign matter or stain on
the slit glass?
Remove the foreign matter or stain.
Discharge LED
5
Are the connectors of discharge LED
harness securely connected?
Reconnect the harness securely.
6
Is the discharge LED dirty?
Clean the discharge LED.
7
Is any of the discharge LEDs off?
Replace the discharge LED.
Developer unit
8
Is the magnetic brush in proper con-
tact with the drum?
Adjust the doctor-sleeve gap.
9
Is the developer sleeve pressuriza-
tion mechanism working?
Check the mechanism.
10
Is the developer material transported
normally?
Remove foreign matters if there is
any.
Scanner section
11
Is the platen cover or ADF opened?
Close the platen cover or ADF.
12
Are the original glass (especially the
position of shading correction plate)
and CIS unit dirty?
Clean them.
Feeding direction
Summary of Contents for e-STUDIO163
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