I started to have a similar problem with my Canon i850, and since I also have a Canon 900D set up as a second printer I decided to use the i850 only for black (grayscale). I removed the three color ink tanks and installed three cleaning tanks in their place. Maybe in time the cleaning tanks will...
The best camera is the one you have with you when a "Kodak Moment" presents itself. For this reason I suggest your first digital camera be a small pocketable unit, like the Consumer Reports top rated subcompact Canon Power Shot SD1100IS. I have a Nikon D80 with added accessories, which I love...
For a while now I have suspected a poor seal between the ink tank and print head may allow air to enter the print head and cause the ink to harden in the head and cause a clog. Does your yellow tank seem to seat well against the rubber washer seal on the print head ... the same as the other colors?
Could I have found the reason for frequent Canon print head clogging? I noticed when I put new ink tanks in my Canon i850 printer there doesn't seem to be much compression of the rubber seal between the ink tank outlet and the print head inlet screen. the ink tanks, when placed into position...