I need advice for getting best quality from my machine

[252w38]

This is my first posting here. I hope I can help out sometime in the future.

I have the Falcon outdoor 62" printer which supports 1440 dpi. However, I bought the Sign Lab print & cut 8.0 software which only have profile for 720 dpi & 4 color mode for Falcon outdoor printer. This was an upgrade from Sign Lab LE software at a great price. I print photos and 720 dpi is not good enough.
Tech from sign lab said I can create my own profile but I don't know how to do it & it will be software issue.

Question: How can I get 1440 dpi without spending a small fortune?

I really appreciate any helpful comments.

Jay

 

[zmatalucci]

what is the quality of your photos, and how big are they?

 

[ProWraps™]

we print photo quality at 720x720 with no problems.

 

[zmatalucci]

I second that

 

[MacDaddy]

I third that...

 

[schurms]

I guess I fourth that

 

[252w38]

thank you for help
28mb JPG. 40" x 30" 300dpi. original pic was taken by canon 5d 12mp camera.
I really like to get best results because these printouts will be used for an exhibition.