Question about Brother MFC-9420CN All-In-One Laser Printer

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MFC-9840 prints vertical stripe ~2" from right edge on all color printouts

Sorry- I realize that the MFC-9420 isn't the same as the MFC-9840, but I didn't see a section for the 9840, so I hope it's OK.

We've got a new MFC-9840CDW that's been printing a small 1/4" vertical pinkish strips about 2" from the right side of the paper. It doesn't appear when you print/copy black and white and doesn't appear when you print/copy a blank piece of paper. It's most noticeable on any full color image - appearing slightly pink on gray backgrounds (noticeably) to being barely noticeable on darker colors such as blue. Thoughts? TIA

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  • mml7 Jan 16, 2008

    Thank you for the response. The problem was resolved by replacing the Laser unit by a field service technician. Prior to that, Brother attempted to throw parts at the printer by replacing the Drum Unit and Magenta toner cartridges.

  • mml7 Jan 16, 2008

    Thank you for the response. The problem was resolved by replacing the
    Laser unit by a field service technician. Prior to that, Brother
    attempted to throw parts at the printer by replacing the Drum Unit and
    Magenta toner cartridges.

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  • 11 Answers

Hi,
The first thing i would try to do is clean the corona wire on the drum unit. It might also be a faulty magenta cartridge.

Posted on Jan 04, 2008

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Good luck.....

Click on this link or copy and paste the complete link into your browser.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it and give a testimonial for my response.

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