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Pinch roller marks on print..

Discussion in 'Mimaki' started by jon vital, Apr 12, 2010.

  1. Apr 12, 2010 #1
    jon vital

    jon vital Member

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    Sep 29, 2009
    uk
    I'm trying to print a large area of solid colour (a light pink) and I'm getting lines on the print from the pinch rollers. (JV33) What's the likely cause of this?
     
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  2. Apr 12, 2010 #2
    J Hill Designs

    J Hill Designs Major Contributor

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    Sep 24, 2004
    dirty pinch rollers
     
  3. Apr 13, 2010 #3
    Rooster

    Rooster Very Active Member

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    Feb 22, 2008
    Edmonton
    Not enough heat. The only time I ever see pinch roller markings is when the machine is coming up to temp. Once the media hits the right temperature and opens it's pores to the ink it goes away.
     
  4. Apr 15, 2010 #4
    Morph1

    Morph1 Levelup Digital

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    Oct 8, 2008
    Edmonton
    lol I deal with it the opposite way I lower the heat and they magically disappear...
    PS are they ink marks or do they appear as traces of lighter color ????
    anyhow if it ink you ned to clean them if they are the traces tweak the heaters
     
  5. Apr 19, 2010 #5
    iceman64

    iceman64 Member

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    Mar 17, 2010
    Try to set your pre-print temp 5 degrees Celcius lower then print temp, or set the print temp 5 degrees higher, it might work.
     
  6. Apr 19, 2010 #6
    Fatboy

    Fatboy Very Active Member

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    Feb 8, 2010
    South Africa
    What is best material to clean it worth?
     
  7. Apr 19, 2010 #7
    jon vital

    jon vital Member

    55
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    Sep 29, 2009
    uk
    the lines were darker than the rest of the print.

    The first time it was when printing on Avery 1900 vinyl using rasterlink with the correct profile for that material. Wasted 10 metres of print.

    I then printed with shiraz using the sam vinyl but a profile for another avery vinyl. The lines were much more feint but again slightly darker than the rest of the print.

    I dont think the rollers are dirty so it's probably a temperature thing.
     
  8. Apr 19, 2010 #8
    J Hill Designs

    J Hill Designs Major Contributor

    15,549
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    Sep 24, 2004
    Yeah I see it when media tunnels...as the vinyl gets closer to the heads, the print is darker..
     
  9. Apr 19, 2010 #9
    ColesCreations

    ColesCreations Member

    415
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    Dec 15, 2006
    Only happens in light prints, we had it on our JV3. Go darker maybe?
     
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