Oki B412dn User Manual - page 261
Other manuals for B412dn:
Maintenance Manual
of
637
Printed Images are Fading Vertically
Cause
Solution
Reference
The LED heads
are dirty.
Wipe the LED heads with a soft tissue paper.
The toner is
low.
With the toner cartridge attached to the image drum, tap the toner
cartridge. Replace the toner cartridge.
The paper is
unsuitable.
Use recommended paper.
About Paper Types That Can be Loaded
260