3) All White Page Print (Refer To Fig. 7-2 C); All White Page Print On Paper; 4) Vertical Line Is Printed; Thin Vertical Line (With Color) (Refer To Fig. 7-2 D) - Oki MC860 Maintenance Manual

Oki Data CONFIDENTIAL

7.5.3.(3) All white page print (Refer to Fig. 7-2 C)

(3-1) All white page print on paper

Check item
(3-1-1) Toner condition
Residual amount of Check that sufficient amount toner remains
toner inside the toner cartridge.
(3-1-2) Exposure condition
LED head Check that the LED head is located in the
good position where the LED head faces
against drum in the specified position.
Check if there exists any obstacle that
prevents irradiation on the irradiating
surface of LED.
LED head Check that the LED head is normally
connecting condition connected.
Drum shaft Check that the drum shaft is contacting
with the right and left side plates normally.
(3-1-3) High voltage terminal
ID unit terminal Confirm that the ID unit high voltage
terminal keeps contacting with the high
voltage terminal by visual check.
(Refer to Fig. 7-3.)
43967002TH Rev. 1
Check work Action to be taken at NG
Replace the toner
cartridge
LED head
installation condition
should be corrected.
Replace the LED
head
Replace the ID unit.
If any attempt of
using new ID unit
as a trial is going to
be made, be sure
to use the System
Maintenance Menu
FUSE KEEP MODE.
ID unit replacement
or high voltage
terminal repair If
any attempt of using
new ID unit as a
trial is going to be
made, be sure to
use the System
Maintenance Menu
FUSE KEEP MODE.

7.5.3.(4) Vertical line is printed

(4-1) Thin vertical line (with color) (Refer to Fig. 7-2 D)

Check item
(4-1-1) ID unit condition
ID unit filming Has the MFP made printing without toner?

(4-2) Thin vertical line (with color)(Refer to Fig. 7-2 F)

Check item
(4-2-1) LED head condition
LED head Is there any foreign material attached to
the irradiating surface of the LED head?
(4-2-2) Paper running condition
Paper running path Check there is no blur in the paper running
path, that cause to scrape the non-fused
toner.
7. Troubleshooting
Check work Action to be taken at NG
Replace the toner
cartridge with new
one. If it does not
correct the trouble,
replace the ID unit.
If any attempt of
using new ID unit
as a trial is going to
be made, be sure
to use the System
Maintenance Menu
FUSE KEEP MODE.
Check work Action to be taken at NG
Remove the foreign
material.
Remove the blur.
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