Oki LP441s User Manual page 62

3. If the lever is not accessible, first slide the dispenser unit
away by lifting the top edge where the arrow marks are
located. (see Step 1 of "Loading the Label Roll" on page 30).
4. Wipe off any dirt on the platen and peel roller (1) using a
cloth soaked in alcohol.
Caution! Never use thinner, benzene, or kerosene. These
solvents can damage the printer.
5. Let the platen and roller dry, then close the cover
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