Oki C610dtn User Manual page 105

3. Gently wipe the LED head surface with a clean, lint free cloth.
Do not use methyl alcohol or other solvents on the LED
head as damage to the lens surface will occur.
4. Close the top cover and press down firmly at both sides so
that the cover latches closed.
CAUTION!
105
– C610/C711 User's Guide