FS-C8525mfp magenta background

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  • aAandy
    Trusted Tech

    Site Contributor
    250+ Posts
    • Apr 2012
    • 370
    #1

    [CQ] FS-C8525mfp magenta background

    hello everyone and happy new year

    this machine has done 40k prints,, 29k color - it is all very clean inside with a minimum of dusting

    i'm having a problem with magenta background & small magenta sprinkles on all color prints - after vacuuming the machine, drum & dev units & performing all the maintenance procedures from the control panel (color registration & calibration, tone curve adjustment, drum refresh & laser scanner clean) the background vanishes, but then comes back again. First instance it took a few months for the background to return, 2nd instance the background returned within a few days

    anyone familiar with this particular problem? i realise i could just replace the magenta dev unit, but the client is a charity organisation and i'd hate to fit a part that wasn't necessary

    perhaps all that is required is a firmware update?

    i did scan some samples, but even at 600 DPI the background didn't show up,,, anyway, any assistance would be very much appreciated

    thanks in advance

    Andy
    Tags: None
    • blackcat4866
      Master Of The Obvious

      Site Contributor
      10,000+ Posts
      • Jul 2007
      • 23008
      #2
      Re: FS-C8525mfp magenta background

      You already have your answer. It's just plain overtoning, and not wanting to charge the money does not negate the need for a magenta developing unit. =^..^=
      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

        • aAandy
          Trusted Tech

          Site Contributor
          250+ Posts
          • Apr 2012
          • 370
          #3
          Re: FS-C8525mfp magenta background

          Originally posted by blackcat4866
          You already have your answer. It's just plain overtoning, and not wanting to charge the money does not negate the need for a magenta developing unit. =^..^=
          at 40k it needs a new dev? most devs usually last 100k

          well, as long as it's not something stupid like a firmware update

          thanks blackcat

            Comment

            • copiertec
              Service Manager

              Site Contributor
              1,000+ Posts
              • Jan 2016
              • 2206
              #4
              Re: FS-C8525mfp magenta background

              Are they using OEM toner?

                Comment

                • qbert69
                  Service Manager

                  1,000+ Posts
                  • Mar 2013
                  • 1152
                  #5
                  Re: FS-C8525mfp magenta background

                  Originally posted by aAandy
                  hello everyone and happy new year

                  this machine has done 40k prints,, 29k color - it is all very clean inside with a minimum of dusting

                  i'm having a problem with magenta background & small magenta sprinkles on all color prints - after vacuuming the machine, drum & dev units & performing all the maintenance procedures from the control panel (color registration & calibration, tone curve adjustment, drum refresh & laser scanner clean) the background vanishes, but then comes back again. First instance it took a few months for the background to return, 2nd instance the background returned within a few days

                  anyone familiar with this particular problem? i realise i could just replace the magenta dev unit, but the client is a charity organisation and i'd hate to fit a part that wasn't necessary

                  perhaps all that is required is a firmware update?

                  i did scan some samples, but even at 600 DPI the background didn't show up,,, anyway, any assistance would be very much appreciated

                  thanks in advance

                  Andy
                  ...does the drum section have a charge roller that needs to be cleaned?....they can create a background/lines if they are not cleaned!

                  REACH FOR THE STARS!!!
                  Konica Minolta Planetariums!
                  https://www.konicaminolta.com/planet...gma/index.html

                    Comment

                    • aAandy
                      Trusted Tech

                      Site Contributor
                      250+ Posts
                      • Apr 2012
                      • 370
                      #6
                      Re: FS-C8525mfp magenta background

                      actually still pondering this one

                      i presume they're using genuine toner, though i haven't checked

                      if it is overtoning, or has a dirty drum charge roller,, it wouldn't get better after doing some calibrations,,, then go bad again

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