Blank Print (Fig.7.2 C) - Oki C810 Maintenance Manual

Oki Data CONFIDENTIAL

7.5.3.(3) Blank Print (Fig.7.2 C)

(3-1) Blank on the whole page
Confirmation Items
(3-1-1) State of toner
Remaining quantity Check to see if a sufficient quantity of toner
of toner remains in the toner cartridge.
(3-1-2) State of exposure
LED head Check to see if the LED head faces the drum
properly in the prescribed position when the
cover is closed.
Also check to see if there is something on
the lightemitting surface of the LED head that
obstructs the light emission.
Connected state of Check to see if the LED head is properly
LED head connected.
Drum shaft Check to see if the drum shaft is so mounted
that it properly touches the right and left side
plates.
(3-1-3) High-voltage terminal
ID unit terminal Ensure visually that the high-voltage terminal of
the ID unit is properly in contact with the contact
ASSY (see Figure 7-3).
44072903TH Rev.1
Confirmation Tasks Action at NG
Replace the
toner cartridge.
Correct the
installed
position of the
LED head.
Replace the
LED head.
Replace the ID
unit.
To use a new
ID unit on a trial
basis, use FUSE
KEEP MODE
of the System
Maintenance
Menu.
Replace the
ID unit or high-
voltage PCB.
Or, modify
highvoltage
terminal. To use
a new ID unit
on a trial basis,
use FUSE
KEEP MODE
of the System
Maintenance
Menu.
7.5.3.(4) Vertical lines are printed
(4-1) Thin vertical lines (with color) (See Fig.7.2 D)
Confirmation Items
(4-1-1) State of ID unit
Filming of ID unit Check to see if the print was conducted in the
absence of toner.
(4-2) Thin vertical lines (without color) (See Fig.7.2 F)
Confirmation Items
(4-2-1) State of LED head
LED head Check to see if the LED head has any foreign
matter sticking to the light-emitting surface of
the SELFOC lens.
(4-2-2) Running state of paper
Path route Check to see if there is a burr in the paper
running path before fuser that scratches unfixed
toner.
7. TROUBLESHOOTING PROCEFRURES
Confirmation Tasks Action at NG
Replace the
toner cartridge
with a new one.
If still the error is
issued, replace
the ID unit. To
use a new ID
unit on a trial
basis, use FUSE
KEEP MODE
of the System
Maintenance
Menu.
Confirmation Tasks Action at NG
Remove the
foreign matter.
Remove the
burr.
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