SKU:

CS-Lexmark-MS321DN-MS421DN-BK

Printer Brand:

Lexmark

OEM Number:

56F1000

Ink Color:

Black

Page Yield:

Black: 6000

Printer Type:

Laser Cartridge

Condition:

New Compatible

Frequently Asked Questions

The MS421dn prints fast — does it burn through toner faster too?

Speed changes how quickly pages come out, not how much toner each page uses. A page at 5% coverage consumes the same toner whether the engine runs it in one second or two, so the 6,000-page rating holds the same way on this quicker model. What speed does change is how fast a busy workgroup accumulates pages — a shared MS421dn simply reaches 6,000 pages sooner in calendar time.

How long does one cartridge last on a workgroup printer like this?

It depends entirely on the group's volume. At 750 pages a month the cartridge runs about eight months; at 1,500 pages a month, roughly four. Either way, changes are infrequent enough that most offices keep no elaborate schedule — the printer's low-toner alert gives plenty of warning at this yield.

My office also has other Lexmark models — is this the same cartridge?

Quite possibly. The 56F1000 serves an entire platform of printers, not just this one: MS321DN, MS421DN, MS421DW, MS521DN, MS621DN, MX321ADN, MX521ADE and MX521DE This listing carries the MS421dn name, but the cartridge itself is identical for every model listed. Many offices standardize on it across mixed fleets for exactly that reason.

What does the warranty cover if print quality fades early?

You get a one-year warranty on the cartridge and free returns for one year, so a cartridge that streaks, fades, or fails ahead of its rated life is our problem, not yours. The claim steps are on our shipping and returns page. We staff support Monday through Friday, 9 AM to 5 PM CST, and ship from warehouses in IL, PA, GA, and CA.

Is this cartridge remanufactured or new?

It is a new-build compatible cartridge manufactured to the 56F1000 specification — not a refilled or remanufactured Lexmark shell. That means consistent yield and quality from the first page to the last of its rated 6,000. It is not a genuine Lexmark OEM product, and we label it plainly as compatible so there is no confusion.

Why does this standard cartridge cost what it does?

Small-department Lexmark cartridges carry a higher per-page price than the big high-volume platforms — that is true of the genuine cartridge as well, and we would rather be upfront about it. The offsetting fact is the calendar math: at moderate volumes this cartridge lasts the better part of a year, so the annual spend stays predictable. For a full view of options, browse our Lexmark toner page.

About This Compatible Lexmark 56F1000 Cartridge for the MS421dn

This single compatible Lexmark 56F1000 black toner cartridge is rated for 6,000 pages in the MS421dn, the faster workgroup step in this compact Lexmark platform. Priced at $174.94, it suits offices that print steadily through the month and want months — not weeks — between cartridge changes. It is backed by a one-year warranty and one-year free returns from Clever Supplies.