HP 92274A, (HP 74A) MICR MICR Toner Cartridge used in the following machines, Apple Laserwirter 4/600, Apple Personal Laserwriter 300, Apple Personal Laserwriter 320, Canon LBP-4U, Canon Canon LBP-430, Canon LBP-430W, Canon LBP-PX, Canon LBP-PX II, Genuine Hewlett Packard C2003A Laserjet 4L, Genuine Hewlett Packard Laserjet 4L, Hewett Packard Laserjet 4ML, Genuine Hewlett Packard Laserjet 4MP, Genuine Hewlett Packard Laserjet 4P and Lasermaster Winprinter 1000, 100% compatible laser toner cartridge. NOT made by HP