Whenever you replace the drum unit in a Brother MFC-7420 laser printer, you must reset the drum counter. Otherwise, your printer will continue to show a “replace drum” error and you won’t be able to print! Here’s a step by step on how to do it.
Step by Step:
1. With the printer’s front cover open, press CLEAR.
2. The printer will display, “Replace drum?” Press 1 to confirm you are installing a new drum.
3. After the display shows “Accepted,” close the printer’s front cover.
That’s it. Enjoy your new drum!
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