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Dark smudge at top of some pages

On about one in ten or so pages a black smudge of a rectangle (about 1"x 1/2") appears top centre of a page. What to do please? many thanks Ilduco

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Re: dark smudge at top of some pages

Either something is lodge in between your printer's roller(which would require service tech to repair)or most likely the drum on your printer is damaged. Just replace the toner cartridge and that should fix it.

Posted on May 07, 2007

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Run a 1/2 test.
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dear friend

looks like problem related with refilled cartridges

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4 - black ink smudges (1/32" wide x 1/16" high) in right margin

Very nice trouble shooting. The image defect you describe point to the OPC or drum unit this is essentially the toner cart. In your case black. Measureing the distance between repetitive defects is a sure way of diagnosing problems such as yours. Again nice work.

Google repetitive defect ruler for your model to help in the future.

Hope this helps

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Try performing a test by printing a test page from Tray 1 and open the top cover as soon as the paper is 60% inside. The paper would jam below the toner cartridge before it reaches the fuser. Remove the toner cartridge carefully and verify if the smudges occur. This would eliminate the fuser. If the print quality is fine, then you need to swap the fuser.

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Hmm... This sounds like it is a toner problem. If your roller is getting too much toner then it just globs it onto the paper even though the drum is not asking for it. Are you using a new toner cartridge or a re-filled one? Is it from Brother or a 3rd party? I suggest you remove the toner cartridge and check inside the printer. Clean any spilled toner. Check the toner cartridge for leaks .. give it a good shake and see if it is leaking. If you have another toner cartridge, you can replace it to test. You may need to pint a few pages to see a change. Another test could be to print a few (2-5) "BLANK" pages. The printer should not be depositing any toner. If no smudge or the smudge stays the same, then the toner cartridge is the likely problem. If the smudge is there, but gets smaller, then clean your printer.

Good luck!

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