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black color bleed when next to other color

Discussion in 'Digital Printing' started by kaligula, Aug 18, 2009.

  1. kaligula

    kaligula Member

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    Aug 1, 2009
    Pittsburgh PA
    I'm new to printing gig, and trying to learn from you guys s much s I can.

    I have trouble with black color (bleeds bad when is next to other color).
    When printed as a single color (black lettering on white background) I do not have problem above.
    It's happening when print mode is higher then FINE 2.

    I'm printing on roland sc 500 , using Flexi 8.1
    I ran cleaning cycle few times , manually cleaned and inspect head for hair dust etc,
    Tried different profiles with out results.
    Tried different media (gloss matte , banner ) same thing.
    Tried different temperature settings .....No Result.

    Test pattern is good (all nozzlee fireing )

    Any help or advice is more then welcome .
    Thank you for taking time to read this.
    D.
     
    Tags:
  2. Riskok

    Riskok Member

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    Mar 7, 2009
    Sweden
    How do you RIP it?

    BR Patrik
     
  3. kaligula

    kaligula Member

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    Aug 1, 2009
    Pittsburgh PA
    I've tried from Production Manager and from Flexi with same result.
     
  4. Jester1167

    Jester1167 Premium Subscriber

    Where are you pre and post heater settings at? This can happen when the ink doesn't dry fast enough. The black area has 200 or 250% ink coverage and the lighter color has less. The weight of all that black pushes it into the other color.

    Higher pre and post heat temps or slower printhead speed will give the ink time to dry and stop the bleed.
     
  5. kaligula

    kaligula Member

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    Aug 1, 2009
    Pittsburgh PA
    I've tried to raise temp to max with no result.
    Thanks.
     
    Last edited: Aug 18, 2009
  6. Jester1167

    Jester1167 Premium Subscriber

    Next coulple of steps would be to slow the head speed down and/or back off the values you are using for black. C100 M100 Y100 K100 is more than you need and most RIP put a limit in the 250% range anyway. You can back your black spot off to C60 M 30 Y00 K100 and still get a good rich black.
     
  7. Baz

    Baz Very Active Member

    If you are printing small stuff at 720 and 1440 then you are best to go into your printer's menu and enable "Full Width Scan". This will make the carriage go the full width between the pinch rollers no matter if it has any color to lay down. This will give time for the colors to dry up a little before being hit with more ink. I always have my heater set to 50.
     
  8. kaligula

    kaligula Member

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    6
    Aug 1, 2009
    Pittsburgh PA
    Thanks guys.
    I have "full width scan " enabled, heater set to 50 but.....
    Would you guys please explain it to me how t make those changes in Flexi?
    Thanks again'
    D.
     
    Last edited: Aug 18, 2009
  9. kaligula

    kaligula Member

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    Aug 1, 2009
    Pittsburgh PA
    Any other advices?
     
  10. DSALRAM

    DSALRAM New Member

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    Sep 20, 2009
    good to know!
     
  11. sfr table hockey

    sfr table hockey Very Active Member

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    Jan 24, 2009
    Alberta
    What material are you trying to print on?


    I was having some major issues with oracal 3641 getting the print to look good. I was getting too much ink layed down as well. I tried many profiles and the one that seems to work the best was for a banner material WTBM and I used the super profile. I am waiting for another vinyl to show up and see if it prints any better. The banner materials are working great and even with no heat. Even window perf prints great.
     
  12. kaligula

    kaligula Member

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    Aug 1, 2009
    Pittsburgh PA
    :thankyou:
     
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