Compatible Generico GR1 black Ribbon Cartridge, which lasts ; which means it lasts as long as an original ribbon cartridge. The ribbon cartridge for matrix printing does not affect the printer warranty and it is of the same quality as an original cartridge.
Compatible Generico GR1 black/red Ribbon Cartridge. This ribbon lasts , the same as an original ribbon cartridge. The ribbon cartridge doesn't damage the printer nor invalidate the warranty.