Refilled toner, installed reset gear and still get drum error after moving blue tab many times and back to right position brother all in one7420 How do you reset the LCD to get rid of change drum soon.
Reinstall the new drum unit, keeping the front cover open. Press OPTIONS. Press 1 when the display shows REPLACE DRUM? 1.YES 2.NO ACCEPTED. Close the front cover.
Reinstall the new drum unit, keeping the front cover open. Press Clear. Press 1 when the display shows REPLACE DRUM? 1.YES 2.NO ACCEPTED. Close the front cover.
Open the front cover
Push 00
wait until the LCD said accept.
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