C5900

The Okidata C5900 is a color laser printer for business environments, known in the US as a Type C8 machine. Its standard cartridge set is numbered 43381901–43381904, a roughly 2,000-page set that this page does not stock. What is stocked here is the longer-running Type C8 line: 43324404 in black, 43324403 in cyan, 43324402 in magenta and 43324401 in yellow. Each cartridge loads into its own drum unit and is swapped one at a time, so a single empty color never forces a full set change.

The base C5900 is the straightforward member of its family — a single-function color printer that offices bought for everyday documents with color where it counts: invoices with a logo, reports with charts, handouts that had to look finished. It prints through LED printheads rather than a laser and mirror, and that imaging path is part of its daily upkeep, as the questions below explain. For a machine of this age still in daily service, toner supply is the whole ballgame, and the high-yield line below is the sensible way to feed it.

Toner Cartridges for C5900

Cartridge	Color	Page Yield
43324404	Black (high yield)	See product page
43324403	Cyan (high yield)	See product page
43324402	Magenta (high yield)	See product page
43324401	Yellow (high yield)	See product page
Type C8 High Yield 4 Color Set (43324404 / 43324403 / 43324402 / 43324401)	All four colors	See product page
C5900 High Yield 4 Color Set	All four colors	See product page
C5900 Premium Quality High Yield 4 Color Set	All four colors	See product page

Which cartridge should you buy?

The standard 43381901–43381904 set suits a C5900 that prints occasionally, but any office putting real volume through the machine outgrows roughly 2,000-page cartridges quickly. The high-yield Type C8 cartridges in the table run longer per slot, which lowers cost per page and, just as usefully, stretches the time between orders. Buy singles when one color is low — black normally leads, since text dominates office printing — and consider a four-color set when two or more colors are nearing empty together, so the machine is not opened twice in the same month.

Chip, toner and everyday use

These compatible cartridges are chipped for the C5900, so the printer recognizes them on installation and tracks their levels like any cartridge it knows. If light streaks appear down the page, the cause is often the LED lens strips rather than toner: open the cover and wipe each strip gently with a soft, dry, lint-free cloth. Page-yield figures assume about five percent coverage, so coverage-heavy color work shortens a cartridge's real life. Keep a spare black where the printer sits — running dry mid-run costs more time than the cartridge costs money.

Frequently Asked Questions

Which cartridges fit the Oki C5900?

The machine's standard set is 43381901–43381904. This page stocks the high-yield Type C8 equivalents instead: black 43324404, cyan 43324403, magenta 43324402 and yellow 43324401, each dropping into the same slots as the standard cartridge of its color.

Is the high-yield cartridge a different size or fit?

No. The high-yield cartridge for a color uses the same slot and the same drum unit as its standard counterpart; it simply holds more toner. You can mix them freely — a high-yield black alongside standard colors, for example, is perfectly fine.

My C5900 prints light streaks down the page. Is the toner failing?

Usually not. On this LED printer, streaks more often mean a dusty LED lens strip. Power the machine down, open the cover and wipe each strip with a soft, dry, lint-free cloth, then print a test page. If the streak follows one color only, swap that cartridge to confirm.

Can I print photos on the C5900?

For office purposes, yes. Choose a photo or heavyweight paper setting in the driver so the fuser and transfer settings match the stock, and switch back to plain paper and toner-save mode for drafts. It is a business color printer, so expect good graphics rather than photo-lab output.