TN-850 & TN-880 Toners causing print quality issues.

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  • TechGeek
    Trusted Tech

    100+ Posts
    • Jan 2009
    • 158
    #1

    TN-850 & TN-880 Toners causing print quality issues.

    Has anyone else been having issues with devices using the TN-850 & TN-880 toner cartridges?? I am constantly having issue with one particular printer the most HL-L6250 but I have seen this on many other devices as well.

    The main complaint/problem is that the toners start leaving black spot on the pages. After replacing the toner this goes away but returns about half way through the life of the toner.

    Additional info:

    I added some print samples but they didn't scan the best.

    I also did so math and the toners only seem to be lasting on average 4,500 pages @ an average coverage are of 5.15 % before symptoms start to arise when the expected yield is 8K for the TN-850 and 12K for the TN-880
    Attached Files
    Last edited by TechGeek; 12-08-2020, 10:18 PM. Reason: Additional information
    Tags: devices, tn-850, tn-880, toner, toners
    • masterchill
      Trusted Tech

      100+ Posts
      • Jul 2005
      • 100
      #2
      Re: TN-850 & TN-880 Toners causing print quality issues.

      Yes we had we had this issue with brother toners. They came out with a new style that has fixed this issue.

        Comment

        • TechGeek
          Trusted Tech

          100+ Posts
          • Jan 2009
          • 158
          #3
          Re: TN-850 & TN-880 Toners causing print quality issues.

          Originally posted by masterchill
          Yes we had we had this issue with brother toners. They came out with a new style that has fixed this issue.
          Thanks for the info. I have been working directly with Brother support on this too. It sure would have been nice if they told me about this.

            Comment

            • blackcat4866
              Master Of The Obvious

              Site Contributor
              10,000+ Posts
              • Jul 2007
              • 22705
              #4
              Re: TN-850 & TN-880 Toners causing print quality issues.

              Isn't it interesting that so many of the spots land in a grid pattern? Does the size of that grid pattern match anything on the machine?

              It sort-of looks like the defect you get when the lower cleaning seal pulls away from the drum, and dumps toner down the vertical path on a Toshiba eS4508A. It fills the transfer roller housing and starts to reprint it onto the paper in other places.

              =^..^=
              If you'd like a serious answer to your request:
              1) demonstrate that you've read the manual
              2) demonstrate that you made some attempt to fix it.
              3) if you're going to ask about jams include the jam code.
              4) if you're going to ask about an error code include the error code.
              5) You are the person onsite. Only you can make observations.

              blackcat: Master Of The Obvious =^..^=

                Comment

                • tsbservice
                  Field tech

                  Site Contributor
                  5,000+ Posts
                  • May 2007
                  • 7635
                  #5
                  Re: TN-850 & TN-880 Toners causing print quality issues.

                  Genuine Brother toners used? Drum unit DR-3400 genuine?
                  A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
                  Blessed are they who can laugh at themselves, for they shall never cease to be amused.

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