Review on HP Cartridge CC640WN Deskjet Photosmart by Ivan Carson

Just a tip for those who have ink problems. I have found that if you rarely print, the ink will run out/dry out, making you think you need to buy another ink cartridge. DO NOT DO THIS if the HP software still shows ink remaining. Simply take out the cartridge, pour some filtered or distilled water into a glass and heat it in the microwave for 30 seconds, dip a lint-free cloth in it and gently clean the bottom of the ink cartridge. You'll know you're done when you wipe the contacts and some ink comes out. Use the dry part of the cloth to wipe away any remaining water and you're done. (Yes, it pretty much ruins the fabric, but they're very cheap and you can keep them near the printer in case this happens again.) Deducted 1 star because you have to manually clean to keep the ink flowing Contacts (automatic network does not make a socket).