We need toner periodically. Meanwhile, order a large number of people the toner on Amazon, so we have received almost 60% in the committee last month and had to send back. The range of defects ranging from non-compatible toners to toner print the strip. Sometimes you do not reach the promised number of pages, so we have to weigh the sustaining toner now. The toner is working properly and also contains a higher amount of toner (600g total weight, it 44,4g toner). Other Tonerfüllfirmen fill approximately 11.8 g toner in the cartridge. Unless the quality further is so good and the customer as promised is our requirements, we will continue to refer our toner happy here