I've been a Canon paper user ever since getting the new Canon printer. But they don't carry a paper size that I can print a true 8X12 size print. So, I ordered a 9X13 paper from Red River. Set up the first print job, and I can't select the correct paper size. Send a request for help to Red River and they show me what I should be able to do, but I still can't find the custom paper size. So, contact Canon's help desk and I'm told to re-install the printer drivers. So I do, and with numerous restarts, I still can't select custom paper size. Check my email one more time, and there's a message from Red River support, showing me that I simply had the wrong printing style selected. Once I changed it, BOOM, I'm in business. Since Red River knew better the printer dialog box than Canon's own support desk, I'm now a loyal Red River Paper customer