Open the front door and remove the drum and toner (cover to avoid light damage). Confirm that the display shows cover open.
Press the clear key and confirm that the display shows replace drum.
Press the start key and confirm that the display is clear.
Press the down arrow key, then quickly press the up arrow key and confirm the display shows 00.
Press the OK key and confirm that the display shows accepted, followed by a cover open message.
Install the drum and toner assembly, close the front door, and the display should show “please wait”. When the printer has warmed up the error message should be gone and you should see the standard display.
Choosing a selection results in a full page refresh.
Press the space key then arrow keys to make a selection.