These remanufactured Canon 731 toner cartridges are a high quality pack of recycled toner cartridges that have been produced using parts from the Canon originals. As a result you can expect the same high page yield as genuine Canon 6273B002, 6271B002, 6270B002 or 6269B002 laser toner cartridges when used with the Canon i-SENSYS LBP-7110CW and all other compatible printers. The toner powder in this remanufactured Canon 731 toner cartridge multipack has been specially formulated to fuse at the same temperature as an original laser toner cartridge to give comparable print quality. No additional drum unit is required as the 6273B002, 6271B002, 6270B002 and 6269B002 cartridges contain everything your printer needs to fuse the toner to paper.