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DC4 quality

Discussion in 'Summa' started by Deere, Jun 9, 2012.

  1. Deere

    Deere Member

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    Feb 2, 2012
    canada
    We have a DC4 and a Roland SP540V. I am trying to get the Suma to print more vibrant like the Roland. The top picture is from the Roland and the bottom from the Suma. The Suma seems to be more grainy?Any suggestions of how to get the Suma printing better? Any help would be great.
     

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  2. ThinkRight

    ThinkRight Active Member

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    Nov 13, 2011
    Atlanta Ga
    I am a very green newbie but...
    The Summa will only print 300 dpi.
    Which is fine for anything to be viewed more than 3-4 feet away.
    Make sure in your file you have the highest resolution available.
    If you are printing jpegs , that will be very grainy, a real photo file prints cleaner.
    Not sure if I am making sense , if anyone else that is a real signmaker could chime in I would really appreciate it .
    David
     
  3. Deere

    Deere Member

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    Feb 2, 2012
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    Yes it is 300 dpi,I us Corel. It looks great on my Roland, but need some help on my Summa. Any other suggestions?
     
  4. woolly

    woolly Member

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    Sep 24, 2007
    Cornwall uk
    two different printing technologies they will not look the same the thermal will always look harsh and grainy imo on that sort of image
    but horses for courses the thermal will be far better on some jobs having both is a bonus work them to there strengths.
     
  5. garisimo

    garisimo Member

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    Oct 14, 2009
    USA
    If you aren't, be sure to use the double dot setting for the halftone setting in ColorControl... It has increased the quality of our prints.

    -g-
     
  6. ThinkRight

    ThinkRight Active Member

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    Nov 13, 2011
    Atlanta Ga
    Thank you.
    I keep learning more every day .
     
  7. Jim Doggett

    Jim Doggett Very Active Member

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    Feb 17, 2008

    Yes: use a double-dot screen pattern and 35 lpi, instead of the default ellipse and 50 lpi, in your ColorControl RIP settings.
     
  8. Jim Doggett

    Jim Doggett Very Active Member

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    Feb 17, 2008
    +1, with a lower screen frequency.
     
  9. garisimo

    garisimo Member

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    Oct 14, 2009
    USA
    Right -- 35 lpi -- that is important, too!
     
  10. moto1

    moto1 Member

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    Nov 16, 2011
    I dont think changing the lpi will affect the brightness of the colour. Personally I think you need to look at the colour breakdown of each part of the image your trying to print. When it comes to screens/halftones I generally use 80lpi. Though this is not ideal on large halftone areas (over 15x15cm).
     
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