6. Routine Maintenance
69
When you replace the drum unit with a new one, you need to reset the drum counter by completing the
following steps:
aMake sure that the printer is turned on and the Drum LED is blinking. Press the front cover release button
and then open the front cover.
bPress and hold down Go for about 4 seconds until all the LEDs light up. Once all four LEDs are lit, release
Go.
Improper Setup
Do not reset the drum counter when you only replace the toner cartridge.
cTake out the drum unit and toner cartridge assembly.