Canon FX-4 Remanufactured Toner Cartridge - This Cartridge works in the following Printer Models: Canon Fax L800 Canon Fax L900 Canon LaserCLASS 8500 Canon LaserCLASS 9000 Canon LaserCLASS 9000S Canon LaserCLASS 9000MS Canon LaserCLASS 9500 Canon LaserCLASS 9500S Canon LaserCLASS 9500MS