PIXMA TR8520 can't specify paper source = cassette

[cpnugent1040]

I have a TR8520. My print job keeps crashing because it can't find paper in rear . I always print from paper source = cassette. Only choices on printer setup are "rear tray" and "automatic". Automatic is fine if it uses the cassette if I don't put paper in rear tray, but it keeps crashing because it can't find paper in rear tray. How do I specify "cassette"?

[shadowsports]

Greetings,

While I look into your issue, this might give you a place to start looking.  Paper sizes can usually be registered in 2 spots.  Directly on the printer, and in the printer driver on your PC or MAC.