"I'm also frustrated that Canon reproduced this error on their machines weeks ago and nobody has contacted me back with any information at all."
"A day later, I got a message on my voicemail from the same Canon support rep, asking me if the images I were printing had layers, and how large the images were. But, I'm so frustrated I never tried to call him back."
Looks like they did contact you - you decided that their question wasn't going to help you.
seems like there are two options: 1. give Canon a callback and see what they can do, or 2. wait until someone on the forum reads your post, has the same problem, and can offer you a solution.