hi i have refilled my cartages and when i put them back in the printer it says there empty. i have heard i need 2 rest the cartage but i dont knot how to do this if anyone can help it would be much apprechated. i person said to uninstall it and then re install it i have done this and still no luck. i also only seem to be getting yellow ink out of the colour cartrage and no blue or red.

i have the HP Photosmart C3100 all in 1 printer

many thanks biggie