Brother MFC 9330CDW - Horizontal black/grey banding on page


Joined
Mar 17, 2019
Messages
1
Hello All,

This is my first post here and hoping someone may be able to help me.

I have a problem when I print in that black horizontal banding is produced across the page of the printout. The banding looks similar to that shown in this link:
https://www.dropbox.com/s/u3a67139bbkzv9g/Scan.BMP.jpg?dl=0

I have tried:
- changing toner
- changing drum
- calibration
- registration
- cleaning corona wire

and nothing has helped.

What I did notice is when i swapped the black toner/drum assembly into the position of the cyan, the smear went away, but i then had problems with the cyan.

When I run the test print, with the colours in the correct positions, I get the smear again. When I ran a test page, I noticed a faint duplicate of the print lower down the page.

When I print a blank page with the black toner in the correct position in the tray, I get the smear lines happening again. When I swap the black toner position with any of the other colours, and run the black in another position, I don't get any horizontal smearing at all.

Does anyone have any ideas?

Thanks in advance.
J
 
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