Yellow streaks. minolta C258

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  • myster
    Technician

    50+ Posts
    • Oct 2011
    • 79
    #1

    Yellow streaks. minolta C258

    The customer was complaining about yellow streaks.
    We have changed the yellow drum for a compatible one, and random stripes continue to appear on different pages.

    Any possible solution? Is the drum bad?

    Why do compatible drums work so poorly on series 8 machines?
    Thank you so much
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    • Gaffers01
      Trusted Tech

      Site Contributor
      250+ Posts
      • May 2011
      • 334
      #2
      Looks like a similar distance to the charge roller, did you replace it when you replaced the drum?

        Comment

        • Synthohol
          Certified Konica Expert

          Site Contributor
          5,000+ Posts
          • Mar 2016
          • 5808
          #3
          looks like charge roller has a flat spot to me. swap it with magenta, see if it follows drum or stays with DV unit.
          We know a thing or two because we've seen a thing or two.
          The medication helps though...
            👍 1

            Comment

            • tsbservice
              Field tech

              Site Contributor
              5,000+ Posts
              • May 2007
              • 7995
              #4
              Originally posted by Synthohol
              looks like charge roller has a flat spot to me. swap it with magenta, see if it follows drum or stays with DV unit.
              Easy 😄
              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.

                Comment

                • myster
                  Technician

                  50+ Posts
                  • Oct 2011
                  • 79
                  #5
                  The drum unit was completely replaced with a compatible one.
                  We are awaiting the exchange for an original one. What seemed strange to me is that both the one we removed and the compatible one gave the same type of error.

                  Thanks



                    Comment

                    • Synthohol
                      Certified Konica Expert

                      Site Contributor
                      5,000+ Posts
                      • Mar 2016
                      • 5808
                      #6
                      have you tried the drum in another color slot? kinda an important question.
                      We know a thing or two because we've seen a thing or two.
                      The medication helps though...
                        👍 1

                        Comment

                        • copyman
                          Owner / Technician

                          Site Contributor
                          2,500+ Posts
                          • Sep 2005
                          • 4651
                          #7
                          Originally posted by Synthohol
                          have you tried the drum in another color slot? kinda an important question.
                          Why not try the suggestion by Synthohol. That is some great free advice. If you would of tried swapping drums btween colors to see it was a defective aftermarket drum you wouldn't of needed to even post here.
                            👍 1
                            ☕ 1

                            Comment

                            • myster
                              Technician

                              50+ Posts
                              • Oct 2011
                              • 79
                              #8
                              Originally posted by copyman

                              Why not try the suggestion by Synthohol. That is some great free advice. If you would of tried swapping drums btween colors to see it was a defective aftermarket drum you wouldn't of needed to even post here.
                              Basically because I'm not in the client.
                              The customer complains about scratches, we go and change the drum unit, the machine works perfectly, a day later the customer complains about the same problem again.
                              I ask on the forum to get help on other possible causes of the failure.
                              We have returned to the customer with an original drum unit, so far, 7 days of perfect work.
                              Thank you all

                                Comment

                                • myster
                                  Technician

                                  50+ Posts
                                  • Oct 2011
                                  • 79
                                  #9

                                  Hello
                                  2 weeks later the customer reported again that the problem had reappeared, with a new original drum.
                                  We have reconnected the all laser connectors and the data bus. The machine works perfectly again. I cross my fingers every day

                                  thanks


                                    Comment

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