This coupon keeps changing. Just keep an eye on the upper right side of the blog. That is the banner ad that has the coupon. It may change again over the weekend.
Ex. 04-30-14 (Print limit is ?) If you want more than one print. Close the window and click the link again so that coupon will have a new pin number. (Log in with Facebook) Wait for the coupon to be sent to your printer.
The coupon has the new bar code. This is from a banner ad from google. I assume it is legit.