This is the third time I have recieved a cartridge that hasn't worked, teh first two times I didn't do anything about it, this time I am in the process of trying to get an rma lable to return the non working cartridge to you for an exchange or refund. Not sure if I will have to pay shipping on the item if so it will be a return only. Not sure what will happen with other color cartridges as I have not needed to use them yet. Time will tell, but you can't beat the price of rema cartridges so.....you take your chances. thank you for the opportunity to voice my opinion.