Print.Save.Repeat. Xerox 108R00977 High Yield Remanufactured Toner Cartridge for Phaser 3635 [10,000 Pages] Made and supported in the USA by Print.Save.Repeat. (Ranked #346 on the Inc. 500 Fastest-Growing Private Companies List) Guaranteed to meet or exceed all OEM standards for page yield and print quality. Page Yield Rating: 10,000 pages @ 5% toner coverage Compatible Xerox Printers: Phaser 3635mfp/s, 3635mfp/x Compatible Xerox Part #s: 108R00977