Just thought I would let people know that Canon no longer support the latest version of Photoshop for the above printer. I really like the results I have had from the printer and use Canon's 'Easy Photo Print Pro' plug-in which has made life very easy for me. However, on upgrading to CS6 I found the plug-in no longer works, I wrote to Canon to ask when they would be upgrading their software and received the following reply. It would appear that they are no longer interested in supporting their own product and expect Adobe or someone else to do their work for them.
Thank you for contacting Canon Australia.
As you are trying to connect to third party software we are limited on the support we can offer. However please contact Adobe and see if the have an update or plug in you can use.
So will be looking at Epson for a replacement when these cartridges run out