Lexmark 56F1000 56F1H00 56F1X00 56F1U00 MICR Toner and MICR Drum Cartridge for Check Printing. MS321 MS421 MS521 MS621 MS622 MX321 MX421 MX521 MX522 MX622 Laser Printers. Extra High Yield 28,000 Pages

Turn your Lexmark MS321 into an in-house bank-check printer with the Lexmark 56F1000 56F1H00 56F1X00 56F1U00 MICR toner-and-drum cartridge from MICR Toner Mart. It lays down the magnetic (MICR) ink that bank scanners read along the routing and account line of your checks, so you print bank-ready checks yourself — no separate check printer needed. Each cartridge is custom-built and signal-tested for a strong, bank-accepted MICR line.

Choose your purchase option

• Toner + Drum (first-time setup) — Your first MICR conversion includes both the MICR toner cartridge and a separate MICR imaging drum (two separate units). A fresh drum is required the first time because your printer's original drum is already contaminated with regular, non-magnetic toner, which would weaken the MICR signal.
• Toner only (reorder) — On every reorder you need only the toner. The MICR imaging drum lasts about 60,000 pages — roughly 2 toner cartridges at this cartridge's 28,000-page yield — so one drum carries you through many toner refills before it needs replacing.

Yields: MICR toner ≈ 28,000 pages · MICR imaging drum ≈ 60,000 pages.

Compatible printers: MS321 MS421 MS521 MS621 MS622 MX321 MX421 MX521 MX522 MX622

• Prints bank-readable MICR checks — guaranteed signal strength.
• 5-year cartridge life warranty.
• 25 years of MICR toner building — we were first to introduce MICR for most models.
• Custom MICR blending available for high-speed operation — contact us.
• Expert U.S. customer service, with printer and electrical engineers on staff.

Need just the drum? When your imaging drum eventually wears out (~60,000 pages), order the replacement imaging drum here →