How many time do you have found your inkjet printer dead after a standing idle long period? Because of the low durability of inkjet prints I usually send them to a web print-shop, so my colours, althought I try to remember to keep them making exercise, often get dry. This happens more certainly if you go on printing after the warning of ended ink (whoops...).
Anyway... it's not a big problem if you know hot to solve the matter.
Step 1: remove the cartridges
Some cheap printers have the head attached to the ink-cartridge, but those cartridges are much more expensive and the quality is worse. My Canon IP4600 is a not very expensive printer, but with a good quality and CD printing too, I love it. It has 5 cartridge which you can extract without moving the head, I've already removed them in the picture.