Bad print only on black Konica Minolta C220

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  • AdrianBls
    Junior Member
    • Feb 2021
    • 6
    #1

    Bad print only on black Konica Minolta C220

    Hello everyone,

    I have a problem with a Konica Minolta C220. When i printing with black, in a part of paper it is printing with some white gaps, like in atachament. In A4 paper it is smaller, but in A3 paper it is bigger. Anyone maybe knows what is the problem? Maybe it is the alignment between drum and cilinder unit?
    Thank you.
    Attached Files
    Last edited by AdrianBls; 10-24-2021, 01:58 PM.
    Tags: konica, minolta, paper, printing, problem
    • lartis.aineias
      Technician
      50+ Posts
      • Dec 2020
      • 77
      #2
      Re: Bad print only on black Konica Minolta C220

      Originally posted by AdrianBls
      Hello everyone,

      I have a problem with a Konica Minolta C220. When i printing with black, in a part of paper it is printing with some white gaps, like in atachament. In A4 paper it is smaller, but in A3 paper it is bigger. Anyone maybe knows what is the problem? Maybe it is the alignment between drum and cilinder unit?
      Thank you.
      The image not help, can you take another picture from a greater distance?

      If your problem is only in bk I would look at bk drum and bk developer unit!

      Στάλθηκε από το AC2003 μου χρησιμοποιώντας Tapatalk

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        • AdrianBls
          Junior Member
          • Feb 2021
          • 6
          #3
          Re: Bad print only on black Konica Minolta C220

          I have attached to the original post another picture, one file is potret and one is landscape.
          I also think that drum or developer unit to be the problem. But exactly I do not know what is that problem. I clean and replace developer kit and I changed cylinder and blade from drum unit. I changed even the laser unit. I sow that are 2 screw in cylinder unit to alignment and adjust the cylinder to drum unit. Maybe from this to be?
          Last edited by AdrianBls; 10-24-2021, 02:27 PM.

            Comment

            • lartis.aineias
              Technician
              50+ Posts
              • Dec 2020
              • 77
              #4
              Re: Bad print only on black Konica Minolta C220

              Originally posted by AdrianBls
              I have attached to the original post another picture, one file is potret and one is landscape.
              I also think that drum or developer unit to be the problem. But exactly I do not know what is that problem. I clean and replace developer kit and I changed cylinder and blade from drum unit. I changed even the laser unit. I sow that are 2 screw in cylinder unit to alignment and adjust the cylinder to drum unit. Maybe from this to be?
              Maybe the transfer belt assy. 1St tranafer of bk! Definitely is not laser or electric problem!

              Τake it out and see better the drum and the developer unit, maybe you did something wrong!

              Στάλθηκε από το AC2003 μου χρησιμοποιώντας Tapatalk

                Comment

                • blackcat4866
                  Master Of The Obvious
                  Site Contributor
                  10,000+ Posts
                  • Jul 2007
                  • 22599
                  #5
                  Re: Bad print only on black Konica Minolta C220

                  What interval between voids?

                  It looks like black developing to me.

                  =^..^=
                  Last edited by blackcat4866; 10-24-2021, 03:42 PM.
                  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

                    • AdrianBls
                      Junior Member
                      • Feb 2021
                      • 6
                      #6
                      Re: Bad print only on black Konica Minolta C220

                      Originally posted by blackcat4866
                      What interval between voids?

                      =^..^=
                      Whats voids do you mean? That white areas on the print? If its about that, it is 3 or 3.5 cm between them.

                        Comment

                        • KenB
                          Geek Extraordinaire
                          2,500+ Posts
                          • Dec 2007
                          • 3946
                          #7
                          Re: Bad print only on black Konica Minolta C220

                          Originally posted by AdrianBls
                          Whats voids do you mean? That white areas on the print? If its about that, it is 3 or 3.5 cm between them.
                          “I think you should treat good friends like a fine wine. That’s why I keep mine locked up in the basement.” - Tim Hawkins

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                            • Blizzoo
                              Senior Tech
                              Site Contributor
                              500+ Posts
                              • Aug 2013
                              • 586
                              #8
                              Re: Bad print only on black Konica Minolta C220

                              It could be the 1st transfer roller as suggested. I've seen these kind of issues caused by squeezed ends of the sponge 1st transfer roller not transferring toner. And seen it to occur more on K side rather than the colors because it's always in contact with the drum.
                              Defects are simple, our mind is complicated

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                                • Drivee
                                  Trusted Tech
                                  250+ Posts
                                  • Nov 2020
                                  • 322
                                  #9
                                  Re: Bad print only on black Konica Minolta C220

                                  That is electrical contact problem on Dev Section. K colour.

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