How can I set my Cannon MG5420 printer to print black and white only. My computer is a MAC 10x

[Ramona]

Hi dona37,

To print in black and white using the printer, you can select the grayscale printing option in the printer driver.  To do this, please follow the steps located here.

[nancy1023]

But, how do you set the default to black and white under the same system and printer?