I opened the first color cartridge and noticed that the tape over the head and contacts was missing. After installing the color cartridge it failed to print any color. I cleaned the contacts and head, reinstalled and still no color. I then tried the second color cartridge and got exactly the same results. After the above experience I installed one of the black cartridges. This cartridge contained the tape over the head and contacts. So far the black cartridge is working fine.The dollar value, assuming everything works, is 4 stars. With a 40 percent fail rate I would drop it to 2 stars. I suggest "BUYER BEWARE".