not printing true black xc540

[XGT]

I'm using CorelDraw 12 with CYMK pallet. I export the file as an EPS to versaworks on my roland soljet pro III xc540. I'm making a basic sign with a colored background but with black boxes around the text and black text. There seems to be almost like an outline of white around the black text/boxes meeting other colors.

Ive looked into color management to select preserve black option but the screen shot below is completely different than what I've found online.

 

[C5 Service&Repair]

Looks like your not using heat at all or your profile is way off for the material you're using.

 

[XGT]

im using the ICC profile that Oracal provided. its oracal 3641. what profile would you suggest? or would you keep the profile and just adjust the pre heat and print heat temp? They were at 35.

 

[Joe House]

what are your quality settings in Versaworks? Can you send a screenshot of that? They will have a much bigger impact on print quality than your Corel color settings.

 

[XGT]

so i adjusted the heat settings and it printed perfect. then the company wanted me to reprint some of the sign material with white font instead of black. now im getting blurry edges.

 

[XGT]

today here in michigan it was quite a bit warmer than what it was when i printed the 2nd time with it turning out perfect with the heat settings higher. with the same heat settings today it resulted what is above. so i adjusted the heat settings lower than what they were the 2nd time and now the print is turning out perfect. so does it make sense to say the heat settings have to be lower during warmer months even though the media/printer is in a controlled/heated environment?

 

[XGT]

i did change the color management setting to signs and displays.i dont think it would make that much of a difference....but who knows