The other night my girlfriend was using her computer to print out a research paper for school. It started to print like the black ink tank was low. Well, it being after midnight, and no place around to buy ink, I refilled a spare cartridge using a refill kit I had. We try again, it started okay, but started doing the same thing. To save sanity, I flash drived the paper to my computer and printed it. I return to the printer. I removed the head, and sure enough it was all gunked up. Too gunked up I think to have been caused by my quick refill job. I clead the head thoroughly and let it dry. I put everything togerther, and a test print indicates that everything is okay. Except... Now it is doing the same thing again. It cannot be gunked up, because the very next day I bought lots of ink cartridges, because I had doubts as to the color's ink level, and replaced everything. I ran the cleaning functions on the printer, but to no avail. What to do?

Consider replacing the print head or at the very least having the print head tested.

Quick question. This printer has a removable/replaceable print head. However, I have yet to see a replacement for sale at any of the big box office supply stores. Where would be the best place for me to go to get a new one?

For my Canon parts, I either order from Canon over the web or I find an authorized servicer and order the part through them.