I have a Canon i350 printer. It worked fine for about a year until recently. Refilled the cartridges 5 or 6 times with no problem at all.Lately when I power it on I get 8 flashing orange blinks then one longer green, then 8 more orange etc...When I push the resume button the light turns to green and stays green, like the printer is ready to print, give it a print job an error message pops up saying the printhead is not installed, "Install Printhead and Click OK" Tried several times to reinstall the printhead with the same results.Also I've noticed on the Printer Status Monitor under the printer icon, instead of showing the cardridges with their ink levels, there is the word No. It seems to me the printer is not detecting the printhead or the cartridges. Anyone have any idea what this problem might be. Thanks