Toshiba e-STUDIO 2555C Service Manual page 840

Cause/Section Step
Main charger 9
output
Developer 10
bias
Developer unit 11
Developer 12
material/
Toner/Drum
13
14
Drum cleaning 15
blade
Transfer belt 16
cleaning blade
Toner dusting 17
* If the trouble is not solved at the step 1 and the step 2 or followings (excluding the parameter
adjustment) are performed, make sure to perform "Enforced performing of image quality closed-loop
control" and then "Automatic gamma adjustment" after taking a measure.
e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
Check item
Is the main charger output
normal?
Is the developer bias proper?
Is the contact between the
drum and developer material
proper?
Using the specified developer
material, toner and drum?
Have the developer material
and drum reached their PM
life?
Is the storage environment of
the toner cartridge 35oC or
less without dew?
Is the drum cleaned properly?
Is the transfer belt cleaning
blade in proper contact with
the transfer belt?
Is the toner accumulated on
the seals of the developer
unit?
8 - 284
Measures
Check the circuits.
Check the circuits.
Check the doctor-to-sleeve gap
and pole position.
Use the specified developer
material, toner and drum.
Replace the developer material
and drum.
Use the toner cartridge stored in
the environment within
specification.
Check the drum cleaning blade
pressure.
Take off the transfer belt and
check if the transfer belt cleaning
blade pressure spring and
pressure hook are installed
properly.
Remove the toner and clean the
seals.
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