The Apple LaserWriter 4 Laser Toner from LD Products is a professionally remanufactured laser toner cartridge that is Guaranteed to meet or exceed the print quality of the OEM Toner Cartridge. Our Apple LaserWriter 4 remanufactured laser toner has new internal parts including OPC drums and wiper blades. Purchasing our Apple LaserWriter 4 Laser Toner is an excellent way to save money without sacrificing quality. Our Apple LaserWriter 4 Laser Toner Cartridge has a '100% Satisfaction Guarantee'. The use of our remanufactured laser toner for the Apple LaserWriter 4 does not void your printer's warranty.