Question about Brother HL 5140 Laser Printer
Funny, I had the same thing. I took out the drum unit and removed the carrtridge, then slowly turned the drum, using the gear wheels at the end. Eventually I noticed a pale dot on thge surface of the drum, just about where the dots were appearing on the page. I sprayed some general-purpose (keyboard-type) cleaner onto a paper towel and carefully cleaned the drum surface, although the dot I removed very carefully with a fingernail - the cleaning fluid had softened it. So far it is printing OK, so I guess something is getting deposited on the drum, which will need to be cleaned periodically,
Hope this helps
Posted on Oct 29, 2008
Same problem with the three dots. Help!
Posted on Aug 13, 2008
SOURCE: Dots on page
shivan, did you change the toner if it yes then open printer and clean the surface of toner and the roller see is there any dust or ink powder is there. bye
Posted on Sep 22, 2007
SOURCE: Can smears when priting be fixed
Have you tried cleaning the corona wire on the drum unit (the blue slider bit)?
Replace the drum unit (assuming you have already replaced the toner cart?)
To check the remaining drum life press the go button 3 times. A report should print out with the info on. Even though you may have some remaining life, the drum can fail early.
If the dots/marks are repeating about 3 times down the page it is almost certainly the drum unit that has the problem.
Posted on Jun 19, 2009
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Posted on Jan 02, 2017
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