At first I would like to evaluate the functioning of the toner cartridge. The function is perfect and the printing results as well. Now I come to my devaluation of this product. I have a Samsung Printer CLX-3305W with which I am very satisfied to a point. In the printer cartridge chip is built of the trucked pages counts. Because it does not matter whether I betrucke the site fully or go through with only 10 characters or blank pages. After 1500 pages is final and the printer steal his service a will until the cartridge replaced. I have long with this problem employs'm un the Internet has shared. One can acquire this chip commercially and then an average of about 200 pages longer print until the cartridge is really empty. The downside, The chip costs 14 to 23 But will I find it sad that we consumers repeatedly trimmed to environmental protection, the industry must trample the environment in which it installs chips in their products so that we throw away very quickly. Samsung Druckerproduckte I do not buy anyway.