44346001TH Rev.1
1 /
Oki Data CONFIDENTIAL
7. TROUBLESHOOTING
7.5.3 (2) The white area of printed pages is dirty (see Fig. 7-2 B).
(2-1) The white area of printed pages is dirty (partially).
Check item
Check operation
Actions for NG
results
(2-1-1) ID unit
Exposure of a drum
to light
Was any ID unit left in an environment where
its drum surface was exposed to light for a
long period of time?
Replace any
applicable ID unit.
When using a
new ID unit as a
try, select FUSE
KEEP MODE
of the system
maintenance
menu.
Toner leakage
Is toner leaking from any ID unit or toner
cartridge?
Replace any
applicable ID unit
or toner cartridge.
When using a
new ID unit as a
try, select FUSE
KEEP MODE
of the system
maintenance
menu.
(2-1-2) Fuser unit
Offset toner in the
fuser units
Visually check each fuser unit if offset toner in
the previous printing adheres to them.
Repeat blind
printing using
unnecessary
media until offset
toner is created
on print media,
or replace any
applicable fuser
unit. When using
a new ID unit as
a try, select FUSE
KEEP MODE
of the system
maintenance
menu.
(2-2) The white area of printed pages is dirty (all over).
Check item
Check operation
Actions for NG
results
(2-2-1) Print media
Media type
Is the media used for printing is especially
thick?
Use standard
paper.
(2-2-2) High-voltage terminal
ID unit terminal
Visually check each ID unit high-voltage
terminal if it contacts the contact assembly
properly. (See Fig. 7-3.)
Replace any
applicable ID
unit or correct
any applicable
high-voltage
terminal. When
using a new ID
unit as a try,
select FUSE
KEEP MODE
of the system
maintenance
menu.
