Okidata MB491+ Toner | Compatible 44574701 Cartridges

MB491+

The Okidata MB491+ is the plus variant of the MB491 monochrome multifunction printer, giving small offices the same all-in-one printing, scanning, copying and faxing in an updated configuration. This page stocks the 44574701 black toner cartridge — the listing this machine is fed from here — while the wider family around it also includes the 44574901 and 44917601 cartridges. Imaging is handled by the separate 44574301 drum unit, good for approximately 30,000 pages between replacements.

In many offices the MB491+ ends up as the fax hub as well as the printer, and that double duty shapes how it should be stocked. Because the plus variant keeps the MB491's consumable family, toner bought for the original machine carries straight over — nobody has to re-learn the supply shelf when the hardware is refreshed. What does change the math is junk fax traffic: every unsolicited page that prints itself is a page of toner gone, which is why the fax settings below earn their space on a toner page.

Toner Cartridges for MB491+

Cartridge	Color	Page Yield
44574701 — Toner cartridge, black (B411D listing)	Black	See product page
44574701 — Toner cartridge, black (alternate listing)	Black	See product page
44574701 — Toner cartridge, 2-pack, black	Black	See product page
44574701 — Toner cartridge, 2-pack, black (alternate listing)	Black	See product page
44574701 — Toner cartridge, 3-pack, black	Black	See product page
44574701 — Toner cartridge, 5-pack, black	Black	See product page
44574701 — Toner cartridge, 10-pack, black	Black	See product page

The drum is a separate, long-life part:

44574301 drum unit — approximately 30,000 pages
44574301 drum unit, 2-pack
44574301 drum unit, 3-pack
44574301 drum unit, 5-pack
44574301 drum unit, 10-pack

Which cartridge should you buy?

Order the 44574701 — that is the cartridge stocked for this machine on this page. A single suits a lightly used MB491+, while the two, three, five and ten packs are there for offices that treat toner like copier paper: bought in quantity, never thought about until the box runs low. Note that the relatives named for this family, 44574901 and 44917601, are not the listings sold here, so match the number on the cartridge you pull out before ordering anything else. The drum needs no such planning: at roughly 30,000 pages it outlasts a long line of toner cartridges, and the printer will tell you when its turn finally comes.

Chip, toner and everyday use

The compatible 44574701 is chipped for the printer to recognize, and levels report through the panel as usual. When you swap, keep the old cartridge upright and bagged until it goes for recycling — loose toner in a shared office makes enemies quickly. A gentle side-to-side rock before installing evens out powder that settled in shipping. For a machine that also faxes, turn off automatic confirmation pages: those little receipts add up to real toner over a year of busy faxing.

Frequently Asked Questions

Which toner does the OKI MB491+ use?

This page stocks the 44574701 black toner cartridge for the MB491+. The family around the machine also names 44574901 and 44917601, but the cartridge sold here is the 44574701 — check the number on your installed cartridge if you are ever in doubt. Toner and the 44574301 drum remain separate replaceable units.

What does the plus mean on the MB491+?

The plus marks an updated configuration of the MB491 with refinements over the original model. Consumables stay in the same family, so existing toner stock carries over and nothing about reordering changes.

The MB491+ is our fax hub. How do I stop junk faxes wasting toner?

Enable junk-fax blocking or caller-ID filtering in the fax settings, and switch off automatic confirmation pages. Every blocked junk fax saves a page of 44574701 toner and keeps the machine ready for real work instead of a stack of advertisements.

How long does the drum last?

The 44574301 drum unit is rated for approximately 30,000 pages, so it is replaced far less often than toner. Wait for the printer to flag it rather than changing it on a schedule.