Oki C710, Руководство по обслуживанию

Страница: 182 / 223

43856301TH Rev.3
181 /
Oki Data CONFIDENTIAL
7. Troubleshooting and repair procedure
7.5.3.(1) Color has faded-out and blurred entirely. (Refer to Figure 7-2A.)
(1-1) Color are faded-out and blurred.
Check item Check work
Action to be taken
at NG
(1-1-1) Toner
Remaining amount
of toner
Check if the message "Prepare toner
replacement." or "Replace the toner." appears or
not.
Replace toner
cartridge with
new one.
Tape attached to
the toner cartridge
opening slot
Check to see that the tape attached to the toner
cartridge opening slot has been peeled off.
Move the toner
cartridge lever to
CLOSE position
and remove tape
from opening
slot.
(1-1-2) LED head
Lens of the LED
head
Check if surface of the lens of the LED head is
stained or not by toner and paper dust.
Clean the lens
with soft tissue
paper.
Mounting condition
of LED head
Check that the LED head is mounted on the
LED head holder correctly. Check that the right
and left tension springs are normally installed.
Correct for
normal condition.
(1-1-3) Print media
Media type Check to see that the print media which is used
for printing is not a specially thick media
Use the normal
paper.
(1-1-4) High voltage terminal
ID unit terminal ICheck that the high voltage terminal of the ID
unit is contacting with the Contact Assembly
normally by visual inspection. (Refer to Figure
7-3.)
IReplace the ID
unit or correct
the high voltage
terminal.
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 item Check work
Action to be taken
at NG
(1-1-5) ID unit installation condition
ID unit DOWN
position (Defective
transfer)
Move the ID unit in and out with hand to confirm
that any abnormal mechanical load does not
exist, and the ID unit can be moved down to the
DOWN position normally. If a piece of paper is
inserted in between drum and belt, if top end of
the paper can enter easily, it is NG (No Good).
Check the
U-shaped
groove of the
side plate for
any abnormality.
If repair is found
impossible,
replace the
equipment.