mac os x 10.7.5 - pixma mg3220 - connected usb gets error message " the printer is not connected"

[jmpaq]

hi, I'm a newbie wrt to mac printer operation.

1.I installed a mg3220 using the wps button on my smc barricade router and can print wireless with a windows 7 printer.

2. my wife has a mac. The printer is on and connected direcly with the usb cable.

she gets the error message " the printer is not connected".

how can we override this error message and print via USB?

thanks and regards.

jmpaq