Brother HL 4140-CN - Black Dots

Joined
Sep 10, 2015
Messages
2
As the title say I have a Brother Hl 4140-CN laser printer and every page I print has 3 black dots down the right hand side of the page, about 1.25" from the edge of the page and about 3.75" apart.

Any idea what might be the cause of this?
 
Joined
Sep 10, 2015
Messages
2
Problem solved, the answer was on the Brother website, guess I should have looked a bit harder before posting.
It was a little bit of black toner stuck on tthe drum roller.
 

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