B431

The Okidata B431 is a monochrome laser printer for offices that need fast, sharp black-and-white documents. It gives you a simple two-way choice: the standard 44574701 cartridge, rated for approximately 4,000 pages, or the high-capacity 44574901, rated for approximately 10,000 pages. Both fit the same slot, so the decision is purely about how much you print.

For a busy office the math is straightforward. A printer that runs every day goes through a 4,000-page cartridge in weeks, and every swap is a small interruption. The 10,000-page cartridge stretches that interval out, which is why high-volume users tend to standardize on it. A quieter office has the opposite concern: an expensive cartridge sitting in the machine for months is money tied up for no reason, and the standard cartridge is the right call there.

Toner Cartridges for B431

Cartridge	Color	Page Yield
44574701	Black	Approximately 4,000 pages
44574901	High Yield Black	Approximately 10,000 pages
B431	Black	See product page

Multi-packs on this page: 44574701 three-pack, 44574901 high-yield three-pack, 44574901 high-yield five-pack and B431 five-pack.

Which cartridge should you buy?

Match the cartridge to your print volume, not to the printer. The standard 44574701 suits an office where the B431 prints a few hundred pages a week: it costs less upfront and never sits around long enough to age. The high-yield 44574901 wins for daily printing, where its lower cost per page and longer interval between changes add up quickly. You are never locked in, either: both cartridges fit the same slot, so you can switch at the next replacement if your volume changes. Multi-packs are worth it only if the printer actually burns through cartridges fast enough to use them.

Chip, toner and everyday use

The B431's toner-low warning appears while there is still a usable reserve in the cartridge, so a warning is not an emergency. Keep printing until output actually fades, but have the replacement ready so the warning does not turn into an interrupted job. A gentle shake side to side redistributes the remaining toner and can finish an urgent document. Store spare cartridges in a cool, dry place, and remember that page counts are estimates at 5% coverage: heavy graphics and solid black areas use toner faster than plain text.

Frequently Asked Questions

Which toner fits the Oki B431?

The B431 uses black toner in two yield options: the standard 44574701, rated for approximately 4,000 pages, and the high-yield 44574901, rated for approximately 10,000 pages. Both fit the same slot.

Standard 44574701 or high-yield 44574901 — which should I buy for the B431?

It depends on volume. The high-yield 44574901 costs more upfront but delivers a lower cost per page, so it wins for busy offices that print daily. If the B431 sits mostly idle and prints occasionally, the standard 44574701 avoids having an expensive cartridge age in the machine for months.

My B431 says toner is low but keeps printing — is something wrong?

No, that is normal. The toner-low warning appears while there is still a usable reserve in the 44574701 or 44574901 cartridge. Keep printing until output actually fades, then swap in the new cartridge.