Oki OKIPAGE14i Manual page 275

drum, the CHANGE DRUM message will appear at the next "toner
low" condition, long before it is actually necessary to change the
drum.
Ÿ Turn the printer on while holding the MENU 1/Menu 2 button.
INITIALIZING, then USERMNT displays in the control panel window.
Ÿ Press MENU1/Menu2, 3 times. DRUM CNT RESET displays.
Ÿ Press ENTER. The counter resets.
Ÿ Press ON LINE.
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