Olivetti d-Color MF4003 User Manual

d-Color MF4003/MF3303
L TROUBLESHOOTING > 16. IMAGE QUALITY PROBLEM
L-146
AA
Troubleshooting procedure
Step Section Check item Result Action
1 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.
2 Paper path There is dirty or foreign matter on paper path. YES Check and clean the paper path
including the duplex section.
3 2nd transfer section Dirt or foreign matter on the 2nd transfer roller. YES • Remove the foreign matter.
• Replace the transfer roller
unit.
4 Fusing unit There is dirty or foreign matter on paper path of fusing
unit.
YES Clean. (Disassembling the fusing
unit is prohibited.)
5 Fusing unit Scratches on belt and roller in fusing unit. YES Replace the fusing unit.
NO Replace the high voltage unit.
16.3.15Blank copy, Black copy
Typical faulty images
The arrow in the exemplary image troubles indicates the paper feeding direction.
[1] [2]
[1] Blank copy [2] Black copy
Initial troubleshooting procedure
Step Section Check item Result Action
1 Service Mode ->
Stabilizer
Select [Service Mode] -> [Imaging Process Adjustment] -
> [Stabilizer] -> [Stabilization Only] and the image
trouble is eliminated.
NO Go to the next step.
2 Image check • Select [Service Mode] -> [Test Mode] -> [Solid
Pattern]. Select "SINGLE", "HYPER", "Error
diffusion", and "1-Sided", enter "120" for Density,
and load tray 2 with A4 paper. This runs a print
cycle of 4 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 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.
2 Transfer belt unit With the color of toner responsible for the abnormal
image, 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.
3 Photoconductor section The imaging unit of the color of toner responsible for the
abnormal image is installed properly.
NO Reinstall.
4 Photoconductor section With the color of toner responsible for the abnormal
image, there is a positive contact between the drum
charge corona bias application terminals and the high
voltage unit connection terminals (Y: C4, M: C3, C: C2,
K: C1).
NO Clean or correct the terminal.
Service Manual
Y119930-3

Olivetti d-Color MF4003 Specifications

General

Brand	Olivetti
Model	d-Color MF4003
Category	Copier
Language	English