44952001TH Rev.2
7-81
Oki Data CONFIDENTIAL
7. TROUBLESHOOTING PROCEDURES
7.5.6 (1) Color is faint and fades across pages (see Fig. 7-2 A).
(1-1) Color is faint and fades.
Check item
Checking method
Action in case of NG
(1-1-1) Toner
Remaining toner
amount
Check the operator panel if it displays
“Prepare to replace the toner cartridge” or
“Replace the toner cartridge.”
Replace any
applicable toner
cartridge with a new
toner cartridge.
Tape at the toner
cartridge opening
Check to make sure that the tape is
removed from each toner cartridge opening.
Move the toner
cartridge lever to the
closed position and
remove any applicable
tape from the opening.
(1-1-2) LED head
LED head lens
Check the LED head lens if its surface is
dirty with toner or paper dust.
Clean them with soft
tissue paper.
LED head attaching
state
Check the LED head if it is properly set into
the LED head holder. Check the tension
spring on the both sides if they are set
properly.
Correct them so that
they are properly set.
(1-1-3) Print media
Media type
Check if the media used for printing is
especially thick.
Use standard paper.
(1-1-4) 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.
Check item
Checking method
Action in case of NG
(1-1-5) ID unit installation state
ID unit down position
(transfer error)
Take out and insert each ID unit by hand
to check that there is no abnormal load
and it goes down to normal down position.
If the top end of a sheet of paper inserted
between the drum and the belt is bent
easily, it means improper installation state.
Check the U-groove of
the side plate for any
abnormality. If it is not
repairable, replace the
unit.
