Laser Toner Supplies for Plain Paper Fax Machines For Toshiba Models TF-631, TF-671. Toner Cartridge Used with Toshiba TF631 and TF671 fax machines. Yields up to 4,000 pages. NEW! - not refilled. We offer a 100% money-back guarantee that this cartridge will be equal in both yield and print quality to a genuine Toshiba TK10 cartridge.
