Hello There. Got the cartridges ordered only after careful consideration, I'm evil fallen in the past often with "discounters". As has been shown in retrospect, totally unfounded. The cartridges do not last as long as the originals, but still long enough to be re-appointed in the future. The saving is simply the size and the quality of prints (also CD printing) is for my needs (opportunity printer) perfectly adequate. Even after long periods of disuse, I did not detect a sticking o. Ä..