Print Module and Google Chrome not printing images

Using the print module to print out blog pages. When I print pages
from within Google Chrome - for example from this page
http://www.robives.com/print/blog/giraffe
the images appear if I do a print preview but when I print out
the page many of the images are missing though there is a
space where they should go.

Printing out different pages from http://www.robives.com/blog
using the print button in the blog title has variable results with some
images printing and others not for no apparent reason.

Any ideas?
thanks!