Need assistance in encountering problems from my printer.

I am currently encountering a printer problem right now.
I'm about to print copy of my files then suddenly my printer seems not working properly.
The model of my printer is Canon MP145.
As I've seen, there are two cartridge inside my printer, the colored and the black.
The colored just run out of ink, so before I print the copy of my files I set-up the printer to print it as black and white then the printer wasn't responding.
Nothing happens at all, does anyone here encountered this problem before?.
Help me please regarding this issue!!
