Oki MB472dn User Manual - page 542
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1137
The Periphery of Characters is Smudged
Cause
Solution
Reference
The LED head is dirty.
Wipe the LED head with a soft tissue paper.
The paper is unsuitable. Use recommended paper.
About Paper Types That Can be Loaded and Storage Methods
The paper is damp.
Replace the damp paper with new paper.
About Paper Types That Can be Loaded and Storage Methods
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