Minolta Di251 - Low Image Density

FrameMaker Ver.5.5(PC) Di251/Di351 TROUBLESHOOTING
05.03.01
T- 5 0
(3) Low Image Density
Section Step Check Result Action
Engine
1 Image transfer current contact terminal
is dirty or deformed.
YES Clean or change.
2 Developing bias contact terminal is
dirty or deformed.
YES Clean or change.
3 Select functions in the following order:
Tech. Rep. Mode
→ Tech. Rep. Choice
→ Printer. The image problem is cor-
rected when the “Image Density” value
is changed toward the plus side.
YES Make setting again.
4 Select functions in the following order:
Tech. Rep. Mode
→ Tech. Rep. Choice
→ Printer. The image problem is cor-
rected when the “VG Adjust” value is
changed toward the plus side.
YES Make setting again.
NO Change I/C.
Change PH Assy.
Change High Voltage
Unit.
Change Master Board.
IR
1 Shading sheet is dirty. YES Clean.
2 CCD2 Board and MFB2 Board are
connected properly.
NO Correct.
3 MFB2 Board and Master Board are
connected properly.
YES Change CCD Unit.
Change MFB2 Board.
NO Correct.
<Typical Faulty Images>
4011T518AA