Olivetti d-Color MF4003 User Manual

d-Color MF4003/MF3303
L TROUBLESHOOTING > 16. IMAGE QUALITY PROBLEM
L-139
Step Section Check item Result Action
Note: Do not apply a strong force
to the surface of the charging
roller, as doing so can damage the
surface.
7 Transfer belt unit There is a positive contact between the transfer belt
application terminals and the high voltage unit
connection terminals (T1).
NO Clean or correct the terminal.
8 2nd transfer section There is a positive contact between the application
terminals of the 2nd transfer and the connection
terminals (T2) and ground terminal of the high voltage
unit.
NO Clean or correct the terminal.
9 IDC sensor IDC sensor is dirty. YES Clean.
10 Service Mode ->
Stabilizer
Select [Service Mode] -> [Imaging Process Adjustment] -
> [Stabilizer] -> [Stabilization Only] and the image
trouble is eliminated.
NO Go to the next step.
11 Service Mode ->
Gradation Adjust
Select [Service Mode] -> [Imaging Process Adjustment] -
> [Gradation Adjust] and the image trouble is eliminated.
NO Go to the next step.
12 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.
13 Connector connection Faulty connector connection the high voltage unit (CN1)
and base board (CN4E).
YES Reconnect the connector.
14 Service Mode -> Initialize
+ Image Stabilization
Select [Service Mode] -> [Imaging Process Adjustment] -
> [Stabilizer] -> [Initialize + Image Stabilization] and
[Gradation Adjust], and the image trouble is eliminated.
YES Readjust.
NO • Replace the transfer belt unit.
• Replace the high voltage unit.
• Replace the base board.
16.3.9Incorrect color image registration
Typical faulty images
The arrow in the exemplary image troubles indicates the paper feeding direction.
AA
AA
Initial troubleshooting procedure
Step Section Check item Result Action
1 Malfunction code The maintenance call mark is displayed on the panel. YES Perform the relevant
troubleshooting procedure
corresponding to the malfunction
code.
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 Service Mode ->
Stabilizer
Select [Service Mode] -> [Imaging Process Adjustment] -
> [Stabilizer] -> [Stabilization Only] and the image
trouble is eliminated.
NO Go to the next step.
4 Service Mode ->
Gradation Adjust
Select [Service Mode] -> [Imaging Process Adjustment] -
> [Gradation Adjust] and the image trouble is eliminated.
NO Go to the next step.
5 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 engine troubleshooting
procedure.
NO Go to scanner troubleshooting
procedure.
Engine troubleshooting procedure
Step Section Check item Result Action
1 Connector connection Faulty connector connection the PH unit and base board
(CN13).
YES Reconnect the connector.
2 Service Mode -> Color
Registration Adjustment
Select [Service Mode] -> [Machine] -> [Color
Registration Adjustment] and the image trouble is
eliminated.
NO Go to the next step.
Y119930-3
Service Manual

Olivetti d-Color MF4003 Specifications

General

Brand	Olivetti
Model	d-Color MF4003
Category	Copier
Language	English