Oki ES9465 MFP Troubleshooting Manual page 75

2.TROUBLESHOOTING FOR COPYING
Problem Description
Copied image has unevenness in
the horizontal direction.
Copied image has black streaks
in the horizontal direction.
Copied image has white streaks
or color streaks in the horizontal
direction.
A color original is copied in black
and white even if [AUTO
COLOR] is selected for the color
mode.
A black-and-white original is
copied in color even if [AUTO
COLOR] is selected for the color
mode.
Cause
The main charger is stained.
The scanning area or guides are
stained.
The LED print head is stained.
Some color originals may be copied
in black and white:
Originals with very little colored
part
Overall blackish originals
Originals in light color
Some black and white originals may
be copied in color:
Yellowed originals
Originals with background color
2 TROUBLESHOOTING FOR COPYING
Corrective Action
Clean the main charger.
P.64 "Cleaning the Main Chargers and LED Print
Heads"
Clean them.
P.120 "Regular Maintenance"
Clean the LED print head.
P.64 "Cleaning the Main Chargers and LED Print
Heads"
Set the color mode to [FULL COLOR].
You can change the criterion for determining whether an
original is black and white or color.
For further information, refer to the MFP Management
Guide.
Set the color mode to [BLACK].
You can change the criterion for determining whether an
original is black and white or color.
For further information, refer to the MFP Management
Guide.
Copying Problems 73