Oki C9300 User Manual page 170

9. Gently wipe the corresponding LED head surface with the LED
lens cleaner supplied with the toner cartridge.
Do not use methyl alcohol or other solvents on the LED head
otherwise damage to the lens surface will occur.
10.Close the top cover.
After installing the new toner cartridge, the message on the
display TONER LOW or CHANGE TONER should disappear.
However, this sometimes does not disappear until printing
has been carried out. If it still does not disappear, reinstall
the toner cartridge.
CAUTION!
NOTE
C9300/C9500 Maintenance • 168