I am also experiencing another common MX922 problem where my printer seems to become disconnected from my network after only a few short minutes of idle time. And Canon doesn't seem to acknowledge that the problem is widespread and/or needs an official correction from Canon. But the common thing among all of these possible solutions is that they don't seem to have worked for anyone.

People have tried installing new drivers and software (which I did) people have tried deep cleaning the nozzles (I did this too) people have tried cleaning the printer head (I did). When I started having problems, I went to Google and typed 'Canon MX922 not printing' - and I found at least two dozen others who were complaining about this exact same problem. What's boggling to me, Stephen, is the amount of other people who have complained about this exact same problem in these forums. It's unlikely that I'll have time anytime soon to call Canon Support. Then when I get home I have three beautiful children who want nothing more than to have me be their dad and play with them. My printer is at home, and I'm working until around 6 p.m.

Canon printer ink test