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Brother Master
6,746 Answers
- Posted on Apr 27, 2015
Re: My 9840cdw keeps on scrolling magenta and yellow...
As soon as the printer does not read the chip on the toner cartridge correct, it assumes there is non or an empty one. Make sure all contacts on the cartridge and in the printer are clean and shiny. make sure none of the contacts is bent or has a dent.
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