General Information & Background Toner cartridges are used in laser printers, photocopiers, fax machines, and microphotographic printers. When the toner cartridge is spent, it can be returned to a remanufacturer or the manufacturer to be refilled, refurbished, and cleaned for resale. Popular Cartridges such as the 92298A (LJ4, 4+, 5, 5M), and the C4127X (LJ4000 […]