White Streaks Appear In The Vertical Direction; Printing Is Faint In The Vertical Direction - Oki COREFIDO B822dn User Manual

White streaks appear in the vertical direction

Cause
The LED head is dirty.
The toner is low.
The window film of the image drum
is dirty.
The image drum has not been
installed correctly.
A foreign object is stuck in the
image drum.

Printing is faint in the vertical direction

Cause
The LED head is dirty.
The toner is low.
The paper is not supported.
Wipe the LED head with soft tissue paper.
When "Toner Low." or "Install Toner" is displayed, replace
the toner cartridge.
Wipe the window film with soft tissue paper.
Please install the image drum correctly.
Please replace the image drum.
Wipe the LED head with soft tissue paper.
When "Toner Low." or " Install Toner" is displayed, replace
the toner cartridge.
Use recommended paper.
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Solution
Solution
Troubleshooting
Reference
Cleaning the LED
head(P.348)
Replacing toner
cartridges(P.312)
Cleaning the
light-shielding
film(P.356)
Replacing the
image drum and
the toner
cartridge(P.320)
Replacing the
image drum and
the toner
cartridge(P.320)
Reference
Cleaning the
main unit and the
parts(P.348)
Replacing toner
cartridges(P.312)
Applicable
paper(P.82)