*** USED TONER CARTRIDGE MUST BE RECIEVED PRIOR TO REPLACEMENT TONER CARTRIDGE BEING SENT TO CUSTOMER *** Use in the following printers: Compatible HP models: LaserJet Series: II, IID, III, IIID * Compatible Canon models: L3100, L920, L4600, L4600E, LBP-8 II, LBP-8 III, LBP-8 IIIT, LBP-RX, LBP-SX, LBP-TX, SX Engine