Well, canola tuning should clean this up :/ but seems that your problems is a little worst : / libgnomeprint2.2 we don't need it at all hehehe

Well, so did you managed to install canola clean up after all ? if not :/
I don't know if we can help more :/ and as I use to say we have 2 options

1) to suggest you to flash the device ( this is bad I know )
2) see if you can arrange a fix ip or something on the device, and we will be able to ssh to it, and fix it remotely for you.

Also, take a look at some OLDER threads about removing canola? they tell you how to manually delete all those dependencies, and then you just run apt-get update
to see if helps.

marcelo