(3)
Low Image Density
Section Step
1
Image transfer current contact terminal
is dirty or deformed.
2
Developing bias contact terminal is
dirty or deformed.
3
Select functions in the following order:
Tech. Rep. Mode → Tech. Rep. Choice
→ Printer. The image problem is cor-
Engine
rected when the "Image Density" value
is changed toward the plus side.
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.
1
Shading sheet is dirty.
2
CCD2 Board and MFB2 Board are
connected properly.
IR
3
MFB2 Board and Master Board are
connected properly.
<Typical Faulty Images>
4011T518AA
Check
T-50
Result
Action
YES Clean or change.
YES
Clean or change.
YES Make setting again.
YES Make setting again.
NO
Change I/C.
Change PH Assy.
Change High Voltage
Unit.
Change Master Board.
YES Clean.
NO
Correct.
YES Change CCD Unit.
Change MFB2 Board.
NO
Correct.