Question about Brother MFC-7820N Printer
I can see a couple of possibilities here. One: The cleaning blade for the drum could be damaged and not all of the toner is being cleaned off of the drum between pages. Two: The drum could be damaged and the damaged parts of the drum are not accepting the changes generated by the laser. I don't think you have a fuser problem because if it were that, the toner would probably smear when you touch it. Typically, I would say it is the toner cartridge but you replaced it and still got the same problem. I would inspect the drum cleaning blade first. That would be the most cost effective first option. Hope this helps. Good luck.
Posted on Jun 21, 2007
yes you have to catch printer making the line and then as a page is being printed you need to open door to stop paper after green cylinder(drum) as it is entering fuser, then you need to remove paper from printer without pulling through the fuser, if you see the line then rub your finger across line up and down page, if it smears at all then its the cartridge if not then the fuser
Posted on Apr 27, 2009
Checked ink cartridge's, two had dried out, still had ink in them but the exit apertures were blocked.
So new set of ink cartridges and problem fixed.
Posted on Feb 06, 2010
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Posted on Jan 02, 2017
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