44952001TH Rev.2
7-82
Oki Data CONFIDENTIAL
7. TROUBLESHOOTING PROCEDURES
7.5.6 (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
Checking method
Action in case of NG
(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
Checking method
Action in case of NG
(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.
