Canon PIXMA MP610 Series Quick Start Manual page 17

If You Print Mainly on Plain Paper
You can load plain paper of the same size in both paper sources, and set the printer driver to
automatically switch the paper source when either paper source runs out of paper during
printing.
(A) Rear Tray: Load plain paper
(B) Cassette: Load plain paper
(A)
(B)
Before Using the Machine 13