Olivetti d-Color MF201 Service Manual

19. Image quality problem Field Service Ver. 1.0 Jun. 2008
336
Troubleshooting
19.3.15 Printer monocolor: white lines in sub scan direction, white bands in sub
scan direction, colored lines colored bands in sub scan direction
A. Typical faulty images
B. Troubleshooting procedure
A02EF4C507DA
White lines in sub
scan direction
White bands in sub
scan direction
Colored lines in sub
scan direction
Colored bands in sub
scan direction
Step Section Check item Result Action
1
Imaging unit The surface of the PC drum is
scratched.
YES Change imaging unit.
2 Dirty on the outside. YES Clean.
3
Contact terminals make good con-
nection between each IU and
machine.
NO Clean contact terminals.
4
Developing bias contact terminal
makes good connection.
NO Clean contact terminal and check ter-
minal position.
5
PH unit The surface of the PH window is
dirty.
YES Clean with cleaning jig.
6
The problem has been eliminated
through the checks of steps up to 5.
NO Change imaging unit.
o Change transfer belt unit.
o Change PH unit.
d-Color MF201
Service Manual Y109660-1
d-Color MF201

Olivetti d-Color MF201 Specifications

General

Brand	Olivetti
Model	d-Color MF201
Category	All in One Printer
Language	English