CS-5550CI

Flagship of its color platform, the Copystar CS-5550CI is the largest of the Copystar-badged versions of Kyocera's big color copiers — Copystar is Kyocera's brand in the United States, and the same machine wears a TASKalfa 5550ci badge in Kyocera's own line. It prints from four cartridges of the TK-8507 family: black TK-8507K (1T02LC0US0), cyan TK-8507C (1T02LCAUS0), magenta TK-8507M (1T02LCBUS0) and yellow TK-8507Y (1T02LCCUS0). This page stocks each color singly and all four together as a set, in standard and Premium Quality listings.

Everything the CS-5550CI uses, its smaller platform sibling uses too: the CS-4550CI takes the identical TK-8507 cartridges, so an organization running both sizes of machine stocks one cartridge family for its color fleet. The thing to keep straight is the platform boundary — the TK8309 cartridges that serve the smaller 3050ci and 3550ci machines are a different family, and the code to match when you reorder for this copier is always TK-8507 or its 1T02LC part numbers, exactly as printed on the cartridge you take out.

Toner Cartridges for CS-5550CI

Which cartridge should you buy?

Plan this machine's toner the way you plan its paper: in bulk, ahead of need. A full 4 color set is the right purchase when the machine is being commissioned, when several colors report low in the same season, or when you want the shelf to hold a complete change for the platform's flagship. Day to day, though, colors empty one at a time, and the singles are how you answer — black most often, since text dominates most office output. Holding one set plus a spare black covers nearly every situation this copier presents. The set appears in two listings, standard and Premium Quality, with the same four TK-8507 cartridges in each.

Chip, toner and everyday use

After a cartridge change, give the copier a moment: it reads the new cartridge's chip, registers the fresh level and may run a short automatic adjustment before it is ready, which is normal behavior rather than a fault. Store a spare set the way you would want to find it — sealed, flat, in a cool dry cupboard, colors together — and when you install from it, work through one slot at a time so a color never lands in the wrong position. If output of one color looks weak while the others stay strong, that cartridge is approaching empty; replacing it restores the balance without disturbing the rest.

Frequently Asked Questions

Does the CS-5550CI take the same toner as the CS-4550CI?

Yes, the identical cartridges. Both machines sit on the same Kyocera color platform and run the TK-8507 family — TK-8507K, TK-8507C, TK-8507M and TK-8507Y — so one stock of spares genuinely serves both models.

Which code should I match when reordering — TK-8507K or 1T02LC0US0?

Either; they are the same black cartridge under its family name and its Kyocera part number. The color cartridges pair the same way: TK-8507C with 1T02LCAUS0, TK-8507M with 1T02LCBUS0 and TK-8507Y with 1T02LCCUS0. Match whichever code is printed on the cartridge you removed.

All four colors are low at once. Set or singles?

That is exactly the moment the 4 color set exists for — one order replaces the full set of cartridges and returns the machine to a known starting point. When only one or two colors are low, singles are the thriftier answer, and nothing about the machine requires colors to be changed together.

Are the cartridges on this page original Kyocera or compatible?

They are compatible cartridges built for this platform, listed under the Kyocera Mita cartridge codes your machine specifies. They carry a 1-year warranty and 1-year returns, and each one is matched to the TK-8507 code and color of the cartridge it replaces.

More printers that use the same cartridges

These are the other machines on the platform that take the identical TK-8507 cartridges, under both badges: CS-4550CI, TASKalfa 4550ci, TASKalfa 4551ci, TASKalfa 5550ci and TASKalfa 5551ci.