I ordered this set in December last year and changed the cartridge over the past weeks. Today September 28, the exchange of the last remaining, the black cartridge announced. While the other me "so far" persuaded - I print yes no crowds - I was on the black total enttäuscht.Die first 10 prints were totally smeared and useless. I tried two or three times to wipe the squeegee and blow off the excess toner powder outdoors. Again and again the same mess! Apparently this is a zigmal recycled cartridge or it's too much powder in it, I do not know. I know one thing: this filth I buy no more. But another problem is that you zubekommt the cover of the printer only with violence (beatings on the right and left side flaps).