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1304 printing issue after head soak

Discussion in 'Mutoh' started by patrickj75, May 4, 2020.

  1. patrickj75

    patrickj75 New Member

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    Sep 18, 2011
    Minnesota
    I was having an issue with black streaks recently. Did a few head soaks now the black in my prints is printing green. MS was done last year. Dampers 2 years ago. I typically only print 1-2 days a week as I'm a part time business. Is it time for a new printhead?
     

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  2. GAC05

    GAC05 Major Contributor

    5,987
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    Dec 27, 2005
    Guam USA
    Print a nozzle check and see what each channel is doing. If they look somewhat ok then something else is going on.
     
  3. patrickj75

    patrickj75 New Member

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    Sep 18, 2011
    Minnesota
    I did do a nozzle check last night and most of the black was out along with the yellow.
     
  4. GAC05

    GAC05 Major Contributor

    5,987
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    Dec 27, 2005
    Guam USA
    Hmmm - got a photo of the check? Not sure how you are getting green without the yellow channel.
    With just cyan and magenta everything would be tinted purple I think.
    Did you get an OEM MS or one of the cheaper ones? If your maintenance station drain tubes are clogged, puddling under the head could show cross-contamination.
    Someone who knows more will chime in soon.
     
  5. patrickj75

    patrickj75 New Member

    12
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    1
    Sep 18, 2011
    Minnesota
    We used an OEM MS. I attached a pic of the nozzle check I just did. It's not very good at all.
     

    Attached Files:

  6. Jaime IL

    Jaime IL New Member

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    Feb 15, 2019
    Manteno
    Capping station is worth a shot replacing before spending all the money on a new MS.
     
    • Like Like x 1
  7. Solventinkjet

    Solventinkjet DIY Printer Fixing Guide

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    Aug 2, 2011
    Denver, CO
    I would change the dampers out along with the o-rings as it's been 2 years, it's over due. I bet with a fresh set of dampers you could get it going.
     
    • Like Like x 1
  8. David40

    David40 Member

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    Jun 6, 2012
    nowhere
    I've had this issue before. What happens is while the head is soaking some of the different colors of ink will siphon into the other channels. I use a "printer workout" page for that where I just print very large blocks of the pure 4 color inks. That flushes out whatever got siphoned into the wrong channel and the cross contamination clears up.
     
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