Question about Brother MFC 7420 All-In-One Laser Printer
It's a light gray line that has letters in it like this:
that repeat several times aboiut 2.5" apart. Above and below the letters are curved lines, almost like a postmark. I cleaned the glass, and changed both the toner cartridge and the drum. Where is this coming from??!
Chances are that its coming from your heat roller. if you open rear cover and look closely, you will see a unit with an orange colored lower roller, and the upper one is your heat roller. if you inspect upper roller, you should see the defect. its a teflon coated roller and sounds like teflon has worn off. you will have to have that replaced.
Posted on Apr 14, 2009
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Posted on Jan 02, 2017
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