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Cause/Section
Step
Parameter
5
adjustment
value
6
Cover
7
Auto-toner
8
9
Main charger
10
output
Developer bias 11
Developer unit
12
Developer
13
material/Toner/
Drum
14
15
Drum cleaning
16
blade
Transfer belt
17
cleaning blade
Toner dusting
18
If the trouble is not solved at the step 2 and the step 3 or followings (excluding the parameter
adjustment) are performed, make sure to perform "Image quality closed-loop control" and then
"Automatic gamma adjustment" after taking a measure.
e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C
ERROR CODE and TROUBLESHOOTING
Check item
Check the image processing
parameters.
Adjust the image processing
parameters.
Is the cover installed properly?
(Is the drum exposed to the
external light?)
Is the auto-toner sensor
normal?
Is the toner supply operating
constantly?
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?
Measures
Check the value of offsetting
adjustment for background
processing (color), background
adjustment (black) and
background peak adjustment
for range correction (black).
While checking the above
encircled image, adjust the
reproduction level by the
offsetting adjustment for
background processing (color),
background adjustment (black)
and background peak
adjustment for range correction
(black).
Correct it.
Check the operation of auto-
toner sensor and readjust.
Check the motor and circuits.
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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Remarks
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Table of Contents
Troubleshooting
