Oki CX2033 MFP Plus User Manual page 130

3. Gently wipe the LED head surface with LED lens cleaner or
soft tissue.
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.
5. Gently lower the scanner.
CAUTION!
Maintenance > 130