Frequently Asked Questions

Why does this listing carry the B420 name when the cartridge number is 43979201?

Because many owners search by the printer they can see on the desk rather than the number on the cartridge. This listing is titled for the B420, and the cartridge inside is the high-yield black 43979201, rated at 7,000 pages. The number on your old cartridge is still the final check before ordering.

What should the first pages look like after I fit it?

Expect normal, solid black text from the first sheet — the cartridge is filled and ready to install, with no priming routine beyond fitting it as you would any replacement. If your first prints look weak, run the printer's cleaning cycle once; pages should settle immediately.

Which printers is this cartridge sold for?

Beyond the B420 in the listing title, the 43979201 is listed for the MB460, MB470 and Oki B430d — the same cartridge serves each of them. If your machine is none of those, match the cartridge number rather than the printer badge.

How far does one cartridge go in a home office?

At 7,000 pages and $28.54 — about 0.41 cents per page — a home office printing a few hundred pages a month is looking at well over a year from a single cartridge. That long interval is the reason many B420 owners simply buy singles.

Is this an original Oki product?

It is a compatible cartridge built to the 43979201 specification, sold under our Clever Supplies label; the broader compatible range is on our Okidata page. It is not made by Oki, and the price reflects that.

What cover do I get, and who do I call with a problem?

A one-year warranty and one-year free returns apply, as set out on the shipping and returns page. We ship from warehouses in IL, PA, GA and CA, and support hours are Monday to Friday, 9 AM to 5 PM CST.

About This B420 Cartridge

A single high-yield black 43979201 cartridge presented under the B420 name it is most often searched by: 7,000 pages for $28.54. Nothing about the cartridge changes with the title — it is the same unit that serves the MB460, MB470 and B430d — but the listing meets B420 owners where they look. Buy the single if your printing is occasional and steady; the same cartridge is available in multi-packs if your volume grows.