Olivetti d-Color MF 4003, Руководство по обслуживанию

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L TROUBLESHOOTING > 16. IMAGE QUALITY PROBLEM
L-138
d-Color MF4003/MF3303
Engine troubleshooting procedure
Step Section Check item for the faulty color Result Action
1 Write section Dirt or foreign matter on the dust-proof glass of the PH of
the color which is responsible for the abnormal image. YES Clean the PH window.
2 Charging section Foreign matter on charging roller of the color which is
responsible for the abnormal image. YES Lightly wipe the surface clean of
foreign matter using hydro-wipe
(65AA-99##).
Note: Do not apply a strong force
to the surface of the charging
roller, as doing so can damage the
surface.
3 IDC sensor IDC sensor is dirty. YES Clean.
4 Service Mode ->
Stabilizer Select [Service Mode] -> [Imaging Process Adjustment] -
> [Stabilizer] -> [Stabilization Only] and the image
trouble is eliminated. NO Go to the next step.
5 Service Mode ->
Gradation Adjust Select [Service Mode] -> [Imaging Process Adjustment] -
> [Gradation Adjust] and the image trouble is eliminated. NO Go to the next step.
6 Service Mode -> Max
Image Density Adj Select [Service Mode] -> [Imaging Process Adjustment] -
> [Max Image Density Adj] and make the necessary
adjustment, and the image trouble is eliminated. NO Go to the next step.
7 Service Mode -> Initialize
+ Image Stabilization Select [Service Mode] -> [Imaging Process Adjustment] -
> [Stabilizer] -> [Init Image Stabilization] and
[Gradation Adjust], and the image trouble is eliminated. YES Readjust.
NO • Replace the imaging unit that
is responsible for the
abnormal image.
• Replace the PH unit.
• Replace the high voltage unit.
• Replace the base board.
Scanner troubleshooting procedure
Step Section Check item Result Action
1 When DF is being used:
2nd side Shading correction surface of DF is dirty. YES Clean.
NO Replace the DF CIS module assy.
16.3.8 Color reproducibility error
Typical faulty images
The arrow in the exemplary image troubles indicates the paper feeding direction.
Troubleshooting procedure
Step Section Check item Result Action
1 Damp paper Paper is damp. YES Change paper to one just
unwrapped from its package.
2 Paper Setting The paper to be used for printing does not match the
paper type and size of paper setting selected on the
machine. YES Make the paper setting again on
the machine.
3 Expert Adjustment -> PS
Designer Settings Select [Utility] -> [Expert Adjustment] -> [PS Designer
Settings] and change the setting, and the image trouble
is eliminated. NO Go to the next step.
4 Image check • Select [Service Mode] -> [Test Mode] -> [8 Color
Solid Pattern]. Select "SINGLE", "HYPER", "Error
diffusion", and "1-Sided", enter "64" for Density, and
load tray 2 with A4 paper. This runs a print cycle of
8 colors on one sheet of paper.
• Check the image after printing and the abnormal
image is evident.
YES Go to the next step.
5 Write section Dirt or foreign matter on the dust-proof glass of the PH. YES Clean the PH window.
6 Charging section Foreign matter on charging roller. YES Lightly wipe the surface clean of
foreign matter using hydro-wipe
(65AA-99##).
Service Manual Y119930-3