Question about Brother MFC 7420 All-In-One Laser Printer
There is a BOLD Black line down the paper on copy mode. Ok in print mode. Prints fine. Have replaced the drum and still get the black line. What's up?
There is most likely something on your scan glass that is blocking the scanner. Clean of both pieces of glass that are there when you flip open the ADF, or top cover. Try to copy again. If it is still there then there is either something on the scanner piece that moves back and forth to scan or one of your scan LEDs is burnt out and the scanner will have to be replaced.
Posted on Dec 17, 2008
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Posted on Jan 02, 2017
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