Magenta toner in black image unit

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  • simeismoler
    Technician
    • Feb 2024
    • 10

    #1

    Magenta toner in black image unit

    I changed the charge roller in the black unit.
    Why does magenta toner appear?

    WhatsApp Image 2025-03-26 at 21.59.36 (2).jpg
  • copyman
    Owner / Technician

    Site Contributor
    2,500+ Posts
    • Sep 2005
    • 4542

    #2
    Are you saying it was a brand new aftermarket charge roller installed in black drum unit, then magenta toner built up on it? I've rebuilt many of these drum units using all new aftermarket parts and never seen a different color appear on charge roller like your picture. Did you use the charge roller from a magenta unit? Did you rebuild the drum unit with new drum, etc or just replace the PCR? Something doesn't add up and has to be more to this story? Only parts available for Kon/Min drum units are aftermarket.

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    • Synthohol
      Certified Konica Expert

      Site Contributor
      5,000+ Posts
      • Mar 2016
      • 5740

      #3
      do they run labels?
      ive seen sticky drums getting charge rollers sticky and they pick up whatever toner mist is floating around the machine. look at the gap in the contamination, is it label margin width?
      check the toner filter, see if its mostly magenta too.
      the drum surface looks bad though.
      We know a thing or two because we've seen a thing or two.
      The medication helps though...

      Comment

      • kingarthur
        Service Manager

        1,000+ Posts
        • Feb 2008
        • 1304

        #4
        Did you just change the charge roller, because that drum looks knackered to me
        Tip for the day; Treat every problem as your dog would.....If you cant eat it or f*ck it....then p*ss on it & walk away...

        Comment

        • blackcat4866
          Master Of The Obvious

          Site Contributor
          10,000+ Posts
          • Jul 2007
          • 22942

          #5
          Originally posted by kingarthur
          Did you just change the charge roller, because that drum looks knackered to me

          Yes, why did you change a charge roller only on a drum unit that's completely worn out?
          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 =^..^=

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