e-STUDIO2006/2306/2506/2007/2307/2507/2303A/2303AM/2803AM/2309A/2809A
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ERROR CODE AND TROUBLESHOOTING
8 - 68
8.4.2
Background fogging
Fig.8-4
Defective area
Step
Check items
Prescription
Density reproduction
1
Check the reproduction of the image
density.
Adjust the density.
Background reproduction
2
Check the background reproduction.
Adjust the background.
Printer section
3
Check test print image (04-114).
Go to step 4 if there is any problem
on image.
Scanner
4
Are the original glass and CIS unit
dirty?
Clean them.
Auto-toner
5
Is the auto-toner sensor normal?
Check the performance of the auto-
toner sensor and readjust.
6
Is the toner supplied normally?
Check the motor and circuits.
High-voltage transformer
(Main charger / Developer
bias)
7
Is the high-voltage transformer
output defective?
Adjust the output, or replace the
transformer.
Developer unit
8
Is the contact between the drum and
developer material normal?
Adjust the doctor-sleeve gap and
polarity.
Developer material/Toner/
Drum
9
Using the specified developer
material, toner and drum?
Use the specified developer material,
toner and drum.
10
Have the developer material and
drum reached their PM life?
Replace the developer material and
drum.
11
Is the storage environment of the
toner cartridge 35°c less without
dew?
Use the toner cartridge stored in the
environment within specification.
Drum cleaning blade
12
Is the drum cleaned properly?
Check the pressure of the drum
cleaning blade.
Toner dusting
13
Is toner heaped on the seal of the
developer unit?
Remove the toner and clean the
developer unit.
Feeding direction
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