SKU:

CS-Lexmark-MS321DN-MS421DN-4BK

Printer Brand:

Lexmark

OEM Number:

56F1000

Ink Color:

Black

Page Yield:

Black: 6000

Printer Type:

Laser Cartridge

Condition:

New Compatible

Frequently Asked Questions

How does an office end up needing 24,000 pages of this cartridge?

Usually one of two ways: either a single department prints heavily month after month, or one supply order has to cover several printers that all take the 56F1000. A busy MS421dn workgroup printing 2,000 pages a month works through this pack in about a year. If your printer only sees a few hundred pages a month, a smaller pack is the smarter buy and we are happy to point you to it instead.

What is the per-cartridge price in the four-pack?

It drops to $161.08 per cartridge — the lowest unit price for this cartridge — with the pack at $644.30 total. Against four singles at $174.94 each, you save $55.46. The saving per cartridge is not huge, but across a year of fleet purchasing it is real money for zero extra effort.

Are all four cartridges restricted to the MS421dn?

Not at all. The 56F1000 is the common cartridge for an entire Lexmark platform: MS321DN, MS421DN, MS421DW, MS521DN, MS621DN, MX321ADN, MX521ADE and MX521DE This listing is titled for the MS421dn, yet every cartridge in the box fits each model in that list. A four-pack is therefore often bought as one shared pool for a floor or department running several of these machines.

Should we store all four, or distribute them to the printers?

Easiest practice is one cartridge at the printer and the rest in a central supply spot, all kept sealed, flat, and away from heat and sunlight. Dry toner stores well for long periods, so there is no rush to use them. Rotating oldest-first keeps the stock tidy and predictable.

What if a cartridge fails after we have already used two from the pack?

The warranty and free returns run per cartridge for a full year, so a failure is handled on that single unit without touching the rest of the pack. File the claim through the steps on our shipping and returns page and we will replace or refund it. Support is staffed Monday through Friday, 9 AM to 5 PM CST, with shipping from IL, PA, GA, and CA warehouses.

Does buying four at once change anything about the cartridges themselves?

No — the pack is simply four of the same individual 56F1000 cartridges, each rated at 6,000 pages and each a new-build compatible unit, not a genuine Lexmark OEM cartridge. Same yield, same quality standard, same warranty on every unit. The only difference between pack sizes is price per cartridge and how often you reorder.

About This Compatible Lexmark 56F1000 Four-Pack for the MS421dn

This four-pack of compatible Lexmark 56F1000 black toner cartridges provides a rated 24,000 pages for MS421dn workgroups at $644.30, or $161.08 per cartridge — $55.46 less than four singles. It is aimed at heavy-printing departments and multi-printer fleets on this platform that want a long, uninterrupted supply horizon from a single order. Every cartridge is covered by a one-year warranty and one-year free returns from Clever Supplies; the full platform range lives on our Lexmark toner page.