Oki C542dn Advanced Manual

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4. Troubleshooting
Vertical White Lines Appear
Cause Solution Reference
The LED head is dirty. Wipe the LED head with a soft tissue
paper.
Cleaning the LED Head (User's
Manual)
The toner is low. If "Toner Low" or "Toner Empty.
Replace with new Toner Cartridge."
appears, replace the toner cartridge.
Replacing the Toner Cartridges
(User's Manual)
The lightproof film of the image drum
is dirty.
Wipe the lightproof film with a soft
tissue paper.
-
The image drum is not installed
properly.
Install the image drum properly.
Replacing the Image Drum
(User's Manual)
There may be foreign objects in the
image drum.
Replace the image drum.
Replacing the Image Drum
(User's Manual)
Printed Images are Fading Vertically
Cause Solution Reference
The LED head is dirty. Wipe the LED head with a soft tissue
paper.
Cleaning the LED Head (User's
Manual)
The toner is low. If "Toner Low" or "Toner Empty.
Replace with new Toner Cartridge."
appears, replace the toner cartridge.
Replacing the Toner Cartridges
(User's Manual)
The paper is unsuitable. Use recommended paper.
Loading Paper (User's Manual)

Oki C542dn Specifications

General

Brand	Oki
Model	C542dn
Category	Printer
Language	English