C6526 with error C7404

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  • axyun
    Service Manager

    Site Contributor
    1,000+ Posts
    • Aug 2007
    • 1323
    #1

    C6526 with error C7404

    I removed drum + dv unit and cleaned out spillage etc. Did not notice anything obvious with y dv unit. Reinstalled but c7404 still appears.

    Any help is appreciated. Frank
    Tags: appears, c7404, obvious, reinstalled, unit
    • JR2ALTA
      Service Manager

      Site Contributor
      1,000+ Posts
      • Feb 2010
      • 2017
      #2
      Re: C6526 with error C7404

      I would say the issue is definitely the chip of the unit NOT the machine. I had a bad drum chip out of the box on that model. You'll have to replace the unit.



        Comment

        • axyun
          Service Manager

          Site Contributor
          1,000+ Posts
          • Aug 2007
          • 1323
          #3
          Re: C6526 with error C7404

          Thanks JR. Should I assume you are referring to dv unit as dv and drum units are separate on this machine and the C7404
          I believe is referring to y dv unit. Have little experience on this machine but what I have had has been a nightmare. I will post results if there are any

            Comment

            • JR2ALTA
              Service Manager

              Site Contributor
              1,000+ Posts
              • Feb 2010
              • 2017
              #4
              Re: C6526 with error C7404

              They are separate but they both have chips and are both known to become unreadable.

              I see how my example could cause confusion. I just wanted to reinforce that the chip design can be flaky.

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