What is the image size? Please paste inline a screenshot of the image/size dialog
Why are you making a PNG for printing?
"The PNG file format is widely used on websites to display high-quality digital images"
AFAIK Adobe doesn’t support embedded ICC profiles in PNG files. That’s an issue for colour accuracy iny our workflow
more here
I hope this helps
neil barstow, colourmanagement net :: adobe forum volunteer:: co-author: 'getting colour right'
google me "neil barstow colourmanagement" for lots of free articles on colour management