MB451 MFP

The Okidata MB451 MFP is the multifunction configuration of the MB451 mono laser line, built for offices that want printing, scanning, copying and faxing from one machine. It uses a single black cartridge, the 44992405 — 1,500 pages per OKI's US page — stocked here as a single, a 3-pack, a 5-pack and under the MB451 MFP name.

One cartridge serving four functions sounds like a complication, but it works the other way: there is exactly one supply to monitor, and three of the four functions draw on it. Offices that scan heavily and print moderately will find the cartridge lasts longer than the machine's workload might suggest, because scanning spends nothing.

Toner Cartridges for MB451 MFP

Cartridge	Color	Page Yield
44992405 single cartridge	Black	About 1,500 pages
44992405 3-pack	Black	About 1,500 pages per cartridge
44992405 5-pack	Black	About 1,500 pages per cartridge
44992405 — listed under the MB451 MFP name	Black	About 1,500 pages
44992405 — MB451 MFP name, 5-pack	Black	About 1,500 pages per cartridge

Which cartridge should you buy?

Every listing above is the same 44992405 cartridge, so the decision is about how your office consumes it. A single suits an MFP that idles between occasional jobs. Busier machines — daily copying, regular fax traffic, a small team printing through one device — are better matched to the 3-pack or 5-pack, which hold the per-cartridge yield constant at about 1,500 pages while removing reorder errands from the week. If the cartridge seems to vanish quickly, check the mix of work before suspecting the supply: copy- and fax-heavy use genuinely does burn through toner faster than light printing.

Chip, toner and everyday use

The cartridge's chip reports its level to the machine, and on an MFP that number deserves a glance now and then, since copying and fax printing spend toner even when no computer job has run. Seat replacements firmly, keep spares sealed and stored flat away from heat, and when pages fade near the end of a cartridge, a gentle side-to-side rock redistributes what remains for a few more pages. Rated yield assumes about 5 percent coverage, so forms with heavy logos and shaded tables will finish a cartridge ahead of the number.

Frequently Asked Questions

What toner does the Okidata MB451 MFP use?

The 44992405 black cartridge. As a monochrome multifunction printer, this single cartridge covers printing, copying and fax printing alike.

How many functions share the one toner cartridge?

Printing, copying and printing received faxes all draw from the same 44992405 cartridge. Scanning to a computer uses no toner, so a scan-heavy workflow barely touches consumables.

My MB451 MFP copies have vertical black lines — is the toner cartridge bad?

Not necessarily. Vertical lines on copies that do not appear on computer prints usually come from a dirty scanner glass or ADF strip, not the toner. Clean the glass first; if the lines show on prints from the computer too, then the cartridge or drum becomes the suspect.