My brother mfc-9840cdw has vertical streaks

Joined
Apr 11, 2017
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1
Hi All,

My brother mfc-9840cdw is becoming more of a headache.
I have been troubleshooting ongoing print issue for a while now. Some history:


Ink toner replaced about 3 years ago – probably have about 2000 pages printed.

Drum unit replaced about 3 years ago – same as above

Yesterday replaced the belt drive (started noticing rubber band pieces in the printer)

Yesterday replaced the ink waste tray


I had some streaks prior to the belt and ink waste swap, but not it is much worse.


I have tried the corona cleaning and also looked into the toner area, but can’t really find a smoking gun. In general the toner leaks, but I don’t want to buy new toner cartridges when it could be the drum.


Here is a picture of the test print.

Hoping folks can help.
 

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