Anonymous6 years ago+110Is the Brother on site warranty invalidated if I use non Brother generic (compatible) toner cartridges ? Herzlichen Dank und freundliche GrüßeAnonymous6 years ago000Thank you very much Francesca and kind regards !Show in original language (German)CommentFrancesca Corrocher6 years ago000According to our own research, Brother does not grant any warranty when using third-party parts. Thus, the guarantee would probably not be granted if the printer receives a defect by using foreign toner.Comment