Question about Brother MFC-9840CDW Laser Printer
Posted by Anonymous on
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Posted on Jan 02, 2017
See if there is a part of the roller that makes a crease on teh paper The black line means that sensor on your end sees a mark on the paper and interprets that as a message or a charachter hence turns it into a line
Posted on Sep 01, 2008
SOURCE: Black line down middle of page
Clean the inside of the printer with a soft rag, be gentle and get as much toner up as you can, also your toner carttridge may be empty or the crum may be bad, start with a fresh toner carttridge and clean the printer out where the cartridge sits.
Posted on Dec 13, 2008
The small glass surface at the top of the scanner bed had some gunk on it. I scrapped it off and the line went away! Yay!
Posted on May 15, 2009
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