Oki C310dn Maintenance Manual page 121

6. PERIODIC MAINTENANCE
Oki Data CONFIDENTIAL
(3) Lightly wipe the (four) LED head lens surfaces with soft tissue paper.
Note! Solvents, such as methyl alcohol or thinner, damage the LED heads. Do not
use them.
LED head
LED head
(4) Close the top cover.
11 /
44346001TH Rev.1