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I have a Brother HL-2040 laser printer. All my print jobs now have a small mark (looks something like a deformed comma) that prints on all my pages. The mark repeats ever 2 15/16 inches. I am assuming that it is something with a roller or fuser unit. How does one clean these items to rid the printouts of this recurring mark? A bit more information: 1. I've already cleaned the corona wire several times (I didn't think this would correct the problem but tried it anyway) 2. The toner unit was replaced about 6 months ago 3. I print an average of about 5 pages a week 4. The problem began after I had run a series of labels (about 10 sheets) each label with a large area (1x3") of solid black and running the print job as "thicker paper" (so that the fuser was hotter than normal and the page ran through the printer slower). I chose this setting to make sure that the toner was securely fused to the label and would not easily rub off.

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There are two possible causes of this problem.
toner Spill
Faulty Foil on the Fuser Unit.

For toner Spill, Use a dry air blower (for electronic), remove the toner and blow out the compactment thoroughly and replace back the Tonner.

For the Foil, remove the toner and the Fuser Unit, open the Fuser unit and remove the cylindrical foil and replace it with a new one.

Posted on Oct 12, 2010


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