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Blank lines in print

Discussion in 'Mimaki' started by WestbankKurt, Aug 8, 2012.

  1. WestbankKurt

    WestbankKurt Member

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    Jul 1, 2009
    New Orleans, Louisiana
    I am using a JV3-160SP and am getting thin blank/white lines in the print. I have checked media comp and that looks fine, I have done test prints and they are fine, all lines are present and none are crooked or broken. I have noticed that certain profiles lessen the effect but I lose bright colors. It has been suggested that heat might be a factor, what temperature would be appropriate for calendered Arlon vinyl? By the way I am using a Arlon profile.I would appreciate any constructive comments, ideas, or suggestions.
    Thank you.
     

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  2. wildside

    wildside Very Active Member

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    Aug 28, 2005
    Kansas
    it looks like media comp issue to me

    heat issues usually run opposite the head path direction

    calendared vinyl we are running at 35 pre 38 print
     
  3. MikeD

    MikeD Active Member

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    Oct 25, 2011
    try a profile with less ink, or use a little more heat? Your media comp looks good but the ink doesn't seem to spread. You could also try adjusting the feed rate while printing to dial it in for this particular print. While printing; hit "function" and in there you will see the media comp adjustments.
     
  4. MikeD

    MikeD Active Member

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    Oct 25, 2011
    you may also want to check and see if the profile Arlon supplied is indeed for that exact media. Gloss versus Matte
     
  5. woahdude

    woahdude Member

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    Oct 25, 2011
    i get that when i run duravinyl. i have to kick up the passes to minimize or eliminate it
     
  6. mkubiniok

    mkubiniok New Member

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    May 26, 2012
    I had the same problem with my Mimaki CJV30. In my case ist was the take up unit. When i fixed the printout on a roll on that unit i got the same white lines. I had to lower the power of the motor of the take up unit. After that my white lines were gone.
     
  7. Masseria

    Masseria Member

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    Jul 23, 2012
    Dont know if jv3 works same as Jv33, but maybe..
    it looks like banding for me. if this would happen to me i solve it like this:
    Without using the take up device:
    Press Function while printing(to adjust banding while printing), and adjust until lines dissapear, if still there, maybe clogged nozzle, if not clogged nozzle, maybe is media problems. so i cant help you there.
     
  8. 4R Graphics

    4R Graphics Active Member

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    Jan 28, 2008
    It looks like a media comp problem unless you are missing nozzles on your test print.

    If you are not missing nozzles then its media comp use a scope to get it dead on.
     
  9. bloobird0

    bloobird0 Member

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    Feb 8, 2010
    France
    how do ou lower the motor power?
     
  10. mkubiniok

    mkubiniok New Member

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    May 26, 2012
    Enclosed you will find a pic of my motor....if you are in front of the machine, you can see it and you must screw it out, you can see there yellow lines which are an indicator...by default Mimaki sets the power on the highest value, useful for heavy banner material.
    But I often print vinyls and I have found out that is the best to lower the power.
     

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  11. bloobird0

    bloobird0 Member

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    Feb 8, 2010
    France
    thanks, I didn't know I could do that on the CJV30, I will try this as I also mostly print vinyl and always found the tension too high.
     
  12. mkubiniok

    mkubiniok New Member

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    May 26, 2012
    I had the same problem and had to look on a lot of pages in the manual until I have found it :)
     
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