interesting question! After some research I found out that ExifPrint is software of digital cameras, (Exchangeable Image Format File), a worldwide standard for high-quality digital photos. When a digital camera with ExifPrint technology captures a photo, it saves important camera settings and shooting conditions in the resulting JPEG image file. Easy-PhotoPrint analyzes the recorded data, and then automatically adjusts printer driver levels and image-correction settings for optimal processing. Canon i850 is one of the printers which support this. To know more visit this link
http://printerreviews.printcountry.c...inter-reviews/