KM-2550
The KM-2550 is the KM-series twin of the Copystar CS-2550: the same monochrome MFP engine carrying a different badge for a different sales channel. It runs the TK-421 black toner cartridge — Kyocera factory number 370AR011 — rated for approximately 15,000 pages per ISO/IEC 19752. Badge aside, offices standardized on the KM line get identical supplies, identical service procedures and the same proven hardware underneath.
That twin arrangement is quietly convenient: whichever badge your fleet wears, the supply shelf does not care. The hardware is pure Kyocera engineering, proven across thousands of installations, and the KM-2550 brings it to offices that buy through the KM channel — a monochrome multifunction workhorse for everyday copying and printing.
Toner Cartridges for KM-2550
| Cartridge | Color | Page Yield |
|---|---|---|
| 370AR011 (TK-421) | Black | ~15,000 pages |
| TK-421 — 3 Pack | Black | ~15,000 pages |
| TK-421 — 5 Pack | Black | ~15,000 pages |
| TK-421 — Premium 5 Pack | Black | ~15,000 pages |
Which cartridge should you buy?
One cartridge type covers this machine, at roughly 15,000 pages a unit, so the choice is quantity. A single cartridge plus one spare is the pattern most offices settle on; the 3-pack and 5-pack options suit sites that run the machine hard or share the toner family across a small fleet. Because the imaging side of this platform is long-life, your running cost is essentially the toner — which is precisely why a long-yield cartridge matters here. Compatible cartridges on this page carry a 1-year warranty and 1-year returns.
Chip, toner and everyday use
Swap the cartridge, let the machine recognize the new unit, and carry on — the KM-2550 was built for offices without a print technician. The yield figure assumes about 5% coverage per ISO/IEC 19752, so a month of dense copying will land below it and a month of light memos above. If prints fade near the end of a cartridge, a gentle side-to-side rock can redistribute the remaining toner and finish the job at hand. Keep spares sealed, flat and out of direct heat.
Frequently Asked Questions
Which toner does the KM-2550 use?
The Kyocera TK-421 black toner cartridge (factory number 370AR011), rated for approximately 15,000 pages.
Is the KM-2550 the same machine as the Copystar CS-2550?
Underneath, yes — the KM-2550 is the KM-badged twin of the CS-2550, with the same monochrome MFP engine and the same toner, sold through a different channel.
How many pages will one cartridge print in practice?
Approximately 15,000 pages at about 5% coverage. Jobs with heavy coverage yield fewer pages, lighter work more — the rating is a benchmark, not a counter.
Will a compatible cartridge cause problems with my machine?
The compatible TK-421 cartridges here are built to the cartridge's fit and specification, and each is backed by a 1-year warranty with 1-year returns.