Oki C911 - Color Has Faded-Out and Blurred Entirely. (Refer to Figure 4-2 A)

45530603TH Rev.2
4-81
Oki Data CONFIDENTIAL
4. TROUBLESHOOTING PROCEDURE
4.5.3.(1) Color has faded-out and blurred entirely. (Refer to Figure 4-2 A)
(1-1) Color are faded-out and blurred.
Check item Check work
Actions to be taken
at NG
(1-1-1) Toner
Remaining amount
of toner
C heck if the message "Prepare toner
replacement." or "Replace the toner." appears
or not.
Replace toner
cartridge with
new one.
(1-1-2) LED head
Lens of the LED
head
C heck 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
U se the normal
paper.
Media condition Check to see that the print media which is
humid
Use the paper
which keeping
rightly.
(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
4-3.)
IReplace the ID unit
or correct the high
voltage terminal.
To u s e a n e w I D
unit for a try, be
sure to use New
Parts Keep Mode
of the System
Maintenance menu.
Check item Check work
Actions to be taken
at NG
(1-1-5) ID unit installation condition
ID unit DOWN
position (Defective
transfer)
O pen and close the Front Cover to confirm
the ID unit any abnormal mechanical load
does not exist, and the ID unit can be moved
down to the DOWN position normally.
Check the
ID Up/Down
mechanics for
any abnormality.
If repair is found
impossible,
replace the
equipment.
(1-1-6) Print adjustment
Paper Black
Setting or Paper
Color
Setting
Tra ns. Black Setting
or Trans. Color
Setting
Check if plural color is faded-out.
Check the faded-out occurred one-side only
or differ with both sides, when both-sides
printing.
Check the setting value of
[
Print Adjust
]
>
[
Paper Black Setting
]
or
[
Paper Color
Setting
].
Check the setting value of
[
Print Adjust
]
>
[
Trans. Black Setting
]
or
[
Trans. Color Setting
]
Changeless the faded-out, if change the
setting value, then return to former value and
adjust [Print Adjust] > [Transfer setting]
Increase the
setting value of
[Print Adjust]
> [Paper Black
Setting] or
[Paper Color
Setting].
Increase the
setting value of
[Print Adjust]
> [Trans. Black
Setting] or
[Trans. Color
Setting]
If appear white
dot, when
increase the
value, adjust
best value.
Transfer setting Check if specific color is faded-out.
Check the faded-out occurred same at both
sides, when both-sides printing.
If cyan is faded-out, check the setting value
of
[
Print Adjust
]
>
[
Transfer setting
] [
Cyan
Transfer Setting
]
.
If other color is faded-out, check the each
color setting.
Changeless the faded-out, if change the
setting value, then return to former value and
adjust [Print Adjust] > [Paper Black Setting
]
or
[
Paper Color Setting
].
If cyan is faded-
out, increase the
setting value of
[
Print Adjust
]
>
[
Tr a n s fe r s e t t in g
]
[
Cyan Transfer
Setting
]
.
If other color
is faded-out,
increase the
each color
setting.