A Plus Lexmark 64035HA High Yield Toner For Lexmark T640, 642, 644 Printers - This Is The High Yield 21,000 Page Cartridge [1 Pack] Include:Black Page Yield Rating: 21,000 pages @ 5% toner coverage.Compatible Lexmark Printers: T640, T640dn, T640dtn, T640n, T640tn, T642, T642dn, T642dtn, T642n, T642tn, T644, T644dn, T644dtn, T644n, T644tn A Plus is the only manufacturer and seller of this product listed. This listing is specifically created for the Toner of which we are the owner and distributor. This is a completely green product. All products are remanufactured back to new condition and are friendly to the environment. We save you money while helping the environment. WARNING: Avoid poor imitation products from other sellers; order directly from APLUS to receive the product listed and ensure quality. APLUS is the only manufacturer and seller of this product listed. This listing is specifically created for the APLUS brand, of which we are the owner and distributor.