Question about Brother MFC 7420 All-In-One Laser Printer
MSC 7420 showing drum error message and toner low message all the time - do i need a new printer?
Open the cartridge cover
and push "00"
wait until the word "accept" then close the cover,
after that should be working perfectly.
Posted on May 22, 2009
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Posted on Jan 02, 2017
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