Question about Dell 5100cn Laser Printer

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Magenta bleeding problem

I have replaced the fuser roller and cleaned up the printer and the first time a print called for magenta it started all over again. Is there a service manual available for this printer.

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  • LisaLS Jul 15, 2008

    just replaced the imaging drum and this problem started.

  • gunner1990 Feb 28, 2009

    Magenta bleeding problem: Possible solution found for my problem. I noticed a strip of thin black plastic over the left end of the magenta feed roller. It was wrapped over the white plastic gear. None of the other rollers had this attached on any of the ends. Looks like it may have been left on after assembly of the printer. I removed this strip by cutting it and then removing it with a pair of pliers. After that the printer no longer bleeds magenta on my prints. Don't know if it was removing the piece of plastic or the roller getting pulled in and out during this process. My main concerned with this solution is that the printer ran for a year without a problem. You would think that if it was the plastic piece, it would have started right from the get go. I will keep my fingers crossed.


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I had a similar problem with toner bleeding onto the page. I found the solution by accident. The bleeding as caused by inadequate voltage to the printer. The printer was hooked up to a circuit that was supplying 90V instead of 110V. After the line was repaired, the bleeding problem disappeared right away.

Posted on Feb 13, 2009

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The solution is to replace the developer

Posted on Dec 11, 2008

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Same problem...Magenta, yellow and cian. The problem can be if you use after-market re-manufactured toner. If the toner itself is made too fine it will leak out during use. One after market toner re-seller said that it is best to use the Dell product. $$$-OUCH-$$$.

Posted on Nov 29, 2008

Hey Guest, can you post a link to more information about the "known problem". I would like more information about this problem as I've had about 4 or 5 5100's with this same problem.


Posted on Aug 28, 2008

Is a known problem, when placing the imaging drum you must be very carefull because you can damage the magenta drumkit.
It's located behind the imaging drum.
The drumkit must be replaced by a Dell technician.

Posted on Aug 06, 2008

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