Oki C710dtn User Manual page 64

11. Gently wipe the LED head surface with soft tissue.
To avoid toner wastage and possible toner sensor
errors, do not change the toner cartridge(s) until
"TONER EMPTY" is displayed.
12. Finally, close the top cover and press down firmly at both
sides so that the cover latches closed.
11
CAUTION!
64
– C710n User's Guide
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