Renewable Toner Modified MICR Toner Cartridge Replacement 80X CF280X Check Printing on Laserjet Pro 400 M401 M425 MFP RT CF280X 80X Modified MICR Toner Cartridge with Lifetime Warranty. We always honor our warranty, even if the Amazon return window has closed OEM #: HP 80X / CF280X High Yield: 6.9K pages based on 5% coverage; prints 20.7K checks @ 3 per For use in HP LaserJet Pro 400 Printers: M401s, M401a, M401d, M401n, M401dn, M401dw, M401dne, M425dn, M425dw MFP RT is the manufacturer of this MICR toner cartridge. The listing of any RT product is not intended to imply any endorsement or direct affiliation with the OEM trademark owner.