C4129X MICR - HP 5000 MICR Toner - Print your own checks with our compatible HP C4129X MICR Toner. Most HP laser printers can be used as a laser check printer. All you need is a MICR cartridge, check paper, and check printing software. You will be able to print check stubs, print checks in quickbooks and any other check software.�This HP 5000 MICR Toner is an economical cartridge. This MICR Laser Toner Cartridge is a compatible black toner used in MICR check printing. | For use in HP LaserJet 5000, 5000N, 5000GN, 5100, 5100 dtn, 5100 tn printers. | Compatible with MICR Cartridges: C4129A, C4129X, TJN-450. | Page Yield: 10,000 @ 5% coverage.