Faded Image (Low Density, Abnormal Gray Balance) - Toshiba e-STUDIO650 Service Handbook

(17) Faded image (low density, abnormal gray balance)

Defective area Step
Developer material/ 1
Toner/Photoconductive
drum 2
3
Toner empty 4
5
6
7
Developer unit 8
9
Main charger output 10 Is the setting value proper?
Developer bias output 11 Is the setting value proper?
JUNE 2002 © TOSHIBA TEC
Check Items
Using the specified developer material,
toner and photoconductive drum?
Have the developer material and the
photoconductive drum reached their PM life? photoconductive drum.
Is there any film forming on the
photoconductive drum?
Is the toner supply symbol lighting?
Is the toner cartridge installed properly? Check the installation state of the
Is the performance of the toner motor normal? Check the performance of the toner motor.
Is the toner cartridge normal?
Is the developer unit installed
properly?
Is the pushing mechanism of the
developer sleeve performing?
Is the main charger output normal?
Is the developer bias output normal?
5 - 125
Prescription
Use the specified developer material,
toner and photoconductive drum.
Replace the developer material and
Clean or replace the drum.
Replace the toner cartridge.
toner cartridge.
Check the toner cartridge.
Replace if it is not normal.
Check the installation state of the
developer unit.
Check the mechanism.
If the setting value is out of
specification, adjust it.
If the output is not normal, check
the circuits. (Note 1)
If the setting value is out of
specification, adjust it.
If the output is not normal, check
the circuits. (Note 1)
e-STUDIO550/650/810 TROUBLESHOOTING
Remarks