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Need Help Mutoh VJ1204 Print problem missing half black HELP

Discussion in 'Mutoh' started by scott dunacn, May 12, 2020.

  1. scott dunacn

    scott dunacn adgrafix

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    Aug 27, 2018
    alabama
    Mutoh VJ1204 Everything is perfect except the one section. Done everything except new print head.
    the first test print only half black is working so i saw this post. A good way to troubleshoot is to simply swap the black damper's positions, run a cleaning cycle and then another test print. If the channel that wasn't printing before still isn't printing, most likely your head is fried. If the problem moves however, it could be an air leak or plumbing issue above the head that is causing the issue. It could also just be clogged in which case a good head soak and strong cleaning should help if not a full on manual flush with a syringe. so i put new dampers on black new 0 ring 20200512_182624.jpg this is before the test print 20200512_182633.jpg this is after cleaning and this a print 20200512_182517.jpg please help
     

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  2. Modman

    Modman New Member

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    Mar 26, 2019
    Alberta
    Keep running the clean cycles and see if it gradually improves also check your drain tubes leading down into waste bottle to make sure your not partially plugged off
     
  3. scott dunacn

    scott dunacn adgrafix

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    Aug 27, 2018
    alabama
    i fixed it thanks for the info
     
  4. Jim Hancock

    Jim Hancock Member

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    Nov 11, 2008
    Delray Beach, Florida
    What fixed it?
     
  5. scott dunacn

    scott dunacn adgrafix

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    Aug 27, 2018
    alabama
    cleaned the manifold, 5 cleanings, new dumpers, 0 ring, brass nuts works like a new one
     

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  6. Modman

    Modman New Member

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    Mar 26, 2019
    Alberta
    Good deal
     
  7. Jim Hancock

    Jim Hancock Member

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    Nov 11, 2008
    Delray Beach, Florida
    Excellent! It's all about ink tight integrity - no air leaks allowed...
     
  8. scott dunacn

    scott dunacn adgrafix

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    Aug 27, 2018
    alabama
    ? my mutoh 1204 has a life times (head) & life times (PF motor) happens when i turn the printer on how do fix
     
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