
FrameMaker Ver.5.5E(PC) Di151 TROUBLESHOOTING
00.03.10
T-21
(3)
Low image density
(4)
Foggy background
Section
Step
Check
Result
Action
Engine
1
Toner has run out.
YES
Change I/C.
2
The image transfer current ter-
minal is dirty.
YES
Clean.
3
The Image Transfer Roller is
deteriorated.
YES
Change.
4
The developing bias terminal
is dirty.
YES
Clean.
5
The Regulator Blade terminal
is dirty.
YES
Clean.
6
Image density is still low even
after the I/C has been
changed.
YES
Change High Voltage Unit.
Change PH Unit.
Change Master Board.
IR
1
Wiring between the Scanner
and Control Board is con-
nected.
YES
Change Scanner.
Change Control Board.
NO
Connect.
Section
Step
Check
Result
Action
—
1
Extraneous light has entered
the copier.
YES
Protect copier from extrane-
ous light.
Engine
1
PC Drum is contaminated with
foreign matter.
YES
Clean.
2
Drum charge voltage terminal
is dirty.
YES
Clean.
3
Regulator Blade terminal is
dirty.
YES
Clean.
4
Seal bias terminal is dirty.
YES
Clean.
5
Foggy background still occurs
even after the I/C has been
changed.
YES
Change High Voltage Unit.
Change PH Unit.
Change Master Board.
IR
1
Mirrors and lens are dirty.
YES
Clean.
2
Exposure Lamp is dirty.
YES
Clean.
3
Wiring between the Scanner
and Control Board is con-
nected.
YES
Change Scanner.
Change Control Board.
NO
Connect.