Oki C710n - Manual (Page 79)

79 – C710n User’s Guide
11. Gently wipe the LED head surface with soft tissue.
12. Finally, close the top cover and press down firmly at both
sides so that the cover latches closed.
CAUTION!
To avoid toner wastage and possible toner sensor
errors, do not change the toner cartridge(s) until
“TONER EMPTY” is displayed.
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