This alternative toner of cheap laser printer Aficio SP 1210N is only the actual "Spare Master" !!! Regarding the print quality I can not fault operation to date after a few months. My first toner replacement due to lack of guidance was Frankly for me a big question mark until I dahinterkam itself even after prolonged Find that toner and imaging drum are separated ... ;-) These additional lines must be attached only as a feedback to the dealer an additional instruction, and only for first-time users as an indication. If this combination continues to prove itself so I'm going to grab again this alternative toner.