C9800N

The networked Okidata C9800N is the shared-office version of OKI's high-capacity C9800 color laser printer. It takes the same Type C7 toner family as its siblings — yellow 42918901, magenta 42918902, cyan 42918903 and black 42918904 — suited to workgroup print loads. The middle pair completes the set on this machine: magenta and cyan are stocked individually, so a depleted color never forces a full four-cartridge swap.

Sharing changes the toner equation. A C9800N on a network serves people with very different habits — one person's text reports, another's full-color presentations — and the four cartridges quietly drain at four different speeds. It is also a wide-format-capable machine, so its output ranges from everyday documents to pieces where large color areas make a weak cartridge obvious. The practical skill with this printer is simply reading its levels now and then, so a replacement is already on the shelf when a position gives out.

Toner Cartridges for C9800N

Cartridge	Color	Page Yield
42918904	Black	See product page
42918903	Cyan	See product page
42918902	Magenta	See product page
42918901	Yellow	See product page
42918904, 42918903, 42918902, 42918901 — Type C7 4 Color Set	All four colors	See product page
C9800N — 4 Color Set	All four colors	See product page
C9800N Premium Quality — 4 Color Set	All four colors	See product page

Which cartridge should you buy?

The single cartridge for the empty color, in almost every case. Each color depletes at its own rate, so replacing all four together wastes whatever toner is still usable in the remaining cartridges — on long-life Type C7 cartridges, that waste is substantial. Keep the full sets for a new installation or the uncommon week when several positions run low together; both a standard and a premium-quality C9800N set are listed here, next to the Type C7 set, and all three cover the same four numbers. For a shared machine, one spare of the fastest-draining color is the cheapest uptime you can buy. Compatible cartridges on this page are covered by a 1-year warranty and 1-year returns.

Chip, toner and everyday use

Banding across large color areas on the C9800N usually starts with toner: a depleted color cartridge lays down uneven coverage, so check that color's level before anything else. If banding persists with full cartridges installed, the image drum for that color channel may be due for replacement — drums and cartridges are separate consumables and wear independently. Seat each new cartridge until it clicks so its chip and level reading register with the printer, keep spares sealed in a cool, dry place, and give a stored cartridge a gentle side-to-side rock before installing it to level the toner inside.

Frequently Asked Questions

What cartridges does the Oki C9800N require?

The C9800N takes yellow 42918901, magenta 42918902, cyan 42918903 and black 42918904 — the Type C7 family it shares with the rest of the C9800 line. Each color is a separate cartridge with its own part number.

Should I replace all four C9800N cartridges at the same time?

No. Each color depletes at its own rate depending on what the workgroup prints, so replace only the empty one. Replacing all four together throws away toner that is still usable in the remaining cartridges.

My C9800N prints large color areas with banding. Is that a toner problem?

Often, yes — banding on large color areas frequently comes from a depleted color cartridge, so check the levels of the colors involved first. If banding persists with full cartridges, the image drum for that color channel may be due for replacement.

Does the C9800N use the same toner as the C9800?

Yes. The N model is the networked, shared-office version of the same printer family and takes the identical Type C7 set, so cartridges move freely between the C9800 and C9800N.