I bought the toner set earlier this year. For three weeks, the toners are now in operation and it has also been printed already intensively. The toners were immediately recognized by the printer. The printed image is clean and properly. However, it has now happened to me in the last three weeks already four times that the printer has suddenly no longer recognized one or two toner. The problem can be easily rectified by taking the affected toner briefly out of the printer and used again, but it bothers me a little. Overall, I am nevertheless pleased with the toners.
