Q: Wireless printing failure...

I have an old MBP running OSX 10.6.8.  Using a Canon MX870.  Previously was able to print wirelessly from my MBP and iPhone flawlessly.  The last few months it has been more and more unstable to the point that now I can't print wirelessly at all.  Prints fine when plugged into the usb port.

I recently changed the firmware on my Time Capsule and got some improvements in overall stability and reliablitiy with wifi.  Hoped this issue would get better but no such luck.

I have removed all printers, changed the network, added the printer to the network, added the printer to the MBP.  Then when I print it acts like it will work.  The computer says it is printing.  The printer screen says it is printing.  It does that for about a minute, maybe two, then I get this:

That's basically what it has done all along since it started failing.

Thanks in advance for any assistance.

TL