Okidata C9600HDN Toner | Compatible 42918901 Cartridges

C9600HDN

The Okidata C9600HDN is a high-duty color laser printer built for demanding office and light-production work, with networking and duplexing as standard. It runs on OKI's Type C7 toner family — yellow 42918901, magenta 42918902, cyan 42918903 and black 42918904 — cartridges engineered for the higher volumes this class of machine handles. Each one is replaced on its own as it runs out.

The configuration letters tell the story: a heavy-duty, high-capacity engine meant to be worked hard by a whole workgroup, not babied by one user. That duty cycle is exactly what the Type C7 set was sized for, and it dictates a straightforward supplies policy — track the four channels independently, because a machine printing this much color will never empty them in step, and keep the fastest-moving channel, almost always black, stocked deeper than the rest.

Toner Cartridges for C9600HDN

Cartridge	Color	Page Yield
42918904	Black	See product page
42918903	Cyan	See product page
42918902	Magenta	See product page
42918901	Yellow	See product page

The same four cartridges are also listed under the C9600 name, and this page carries two sets under the C9600HDN name itself. Everything stocked for the family:

Which cartridge should you buy?

Singles first. Because each color depletes at its own rate depending on what you print, the economical pattern on this machine is to replace only the channel that is empty — the Type C7 singles and their C9600-named equivalents make that easy for all four colors. Reach for the black multipacks (2, 3 and 5 Black) when text-heavy work keeps that channel turning over, since they cut the cost per cartridge on the one you buy most. A full 4 Color Set earns its place when several channels are low together or when you are stocking a shelf from scratch; changing all four on a schedule, by contrast, throws away the toner left in the survivors.

Chip, toner and everyday use

The printer monitors the four cartridges independently through their chips, so the status display — not the calendar — should tell you what to order. When a fresh cartridge goes in, seat it squarely in its color slot; heavy machines punish a half-latched cartridge with misleading level readings. Near the end of a cartridge's life, a gentle end-to-end rock redistributes the remaining toner and can pull a few more clean pages out of it. Store reserve sets sealed, flat, and away from sunlight so they are ready the moment a channel gives out.

Frequently Asked Questions

What toner cartridges does the C9600HDN use?

Four Type C7 cartridges: yellow 42918901, magenta 42918902, cyan 42918903 and black 42918904. As a heavy-duty color printer it works through toner faster than desktop models, so keeping a spare of the color you use most is cheap insurance against downtime.

What does the "HDN" in C9600HDN stand for?

The letters describe the configuration: H for the heavy-duty, high-capacity design, D for automatic duplex printing and N for built-in networking. It is a workgroup color machine, and the 42918901–42918904 cartridges are sized to match that heavier workload.

Should I replace all four toners at once?

Only if they are genuinely all low. The printer tracks the four cartridges independently and each depletes at its own rate, so swapping the set on black's schedule wastes the life left in the colors. Buy the set when the levels converge; otherwise replace the one that is empty.

Does the C9600HDN share its cartridges with the C9800 series?

Yes — the Type C7 set is common to both lines, which is why models like the C9800 appear in the family list below and take these same four part numbers.