Where should I post for help with my PIXMA TS5320 Printer?

Hi,

I'm trying to navigate this site but there are so many forums and I don't see what I'm looking for. I have a new Canon Pixma TS5320 printer and it won't print because it keeps saying that the paper cartridge isn't installed even though it is. I watched the instruction videos and read the instructions and don't see what I'm doing wrong, if anything. The printer is brand new, and I managed to print 4x6 photos from the rear paper feeder, but I can't get it to print on regular paper from the cartridge in the front. If anyone sees this who has some ideas, I could really use your help!

 

Thanks Phil