Purchased to use with my samsung ml-3312nd which I bought specifically because it was supposed to work with this toner. Samsung changed their compatibility specs and now the larger toner is no longer supported with the printer. I have been fighting with Samsung for 6 months, they tell me that it is compatible then not, tell me it's a defective toner but won't warranty it, tell me it's a defective printer but won't warranty it. I've wasted $159 on the printer and nearly $400 on toner that I cant use and haven't been able to print anything. Samsung would not even allow me to upgrade to the 3712nd to get the features I purchased the 3312nd as advertised to have, even when I wanted to pay them to do so. I have given up and will go back to my old printers and let $550 sit here since I don't trust that any cartridge will actually work in it, and it costs twice as much to opperate as was planned with the smaller cartridges.I've been using this MLT-D205E toner for my samsung ML-3712ND printer for 4years with no problem.So I got 3 toners for back up from new vendor TRIPLENET.All these 3 toners are not compatible to the printers.Triplenet refused to take them back because I found out the problem after 30 days.Samsung also refused to cover the manufacture warranty because I got these toners fromunauthorised vendor.I just lost $432.78. ㅜㅜPrints like a champ.Vendor was on time and great.Took me a while to install it.Great product and service.