zero stars i ordered these cartridges approximately one month ago and put them in my printer less than one week ago. printing seemed to be fine and then i looked in the machine and the black ink was spraying all over inside. then, when i tried to photocopy a page, it printed as though i was running out of ink. however, i could print from a file no problem. i had to clean the inside of the machine many times so removed the cartridge today and replaced it with another black ink. now i can print and photocopy with no praying inside my machine. amazon says that as of may 8th i have no recourse to return or exchange this cartridge. i didn't even try it before may 8th!!!! i can find no customer service email to follow up on this issue so i'm putting it in my review. i'm not impressed, i had to clean my machine many times, wasted time and paper trying to copy things that couldn't copy because of this faulty cartidge they sent me. now i've replaced it at my own cost.