CS Series
CS is the Copystar badge — the name Kyocera's US dealer channel put on machines that are Kyocera Mita hardware underneath. Only four model pages sit in this series, and they run on two cartridge families: the TK18 that feeds the CS-1820, and the 1T02K30US0 cartridge listed here under the CS255 and CS305 names. If your machine wears a Copystar logo, this is its shelf; the cartridges do not care which badge is on the front panel.
The badge question is the whole story of this series. The CS-1820 is the same 18-series hardware Kyocera Mita sold as the KM-1820, with the same engine and the same TK18 cartridge; only the logo and the sales channel differ. That is why this small shelf rewards a code check over a name check: a shopper who searches by the badge alone can miss that the identical cartridge is also listed under the Kyocera Mita name elsewhere in the catalog.
Popular cartridges for the CS Series
Every product on this series shelf is listed below — all 16 listings across the two families.
Which cartridge should you buy?
Begin with the model number, not the badge. Open your page from the directory below — CS255 for the larger system — and order the family named there. The table above shows how the two families are packaged: the TK18 line runs from singles to 10-packs, for offices stocking a shared machine, and the 1T02K30US0 line is listed under both the CS255 and CS305 names because the same cartridge serves both machines.
Chip, toner and everyday use
A Copystar machine reads its cartridge exactly the way its Kyocera Mita twin does — the chip confirms the part, and a cartridge from the wrong family is refused. Fit the new cartridge firmly, let the machine complete its start-up, and keep the old one until a day of clean copies has passed; with badge-twin machines, the removed cartridge's label is also the quickest proof of which family the machine takes. Store spares sealed and flat, away from heat. Every compatible cartridge on this page is covered by a 1-year warranty and 1-year returns.
Frequently Asked Questions
Is Copystar a different manufacturer from Kyocera?
No. Copystar was Kyocera's dealer-channel branding in America — the same engineering, the same factories, a different logo on the front panel. That is why the cartridges cross over completely between the two names wherever the machines are twins.
My CS-1820 takes the same cartridge as a KM-1820. Can I order from either page?
Yes. The two model pages name the same TK18 family, because the machines are the same hardware. Order whichever listing suits your pack size; the cartridge that arrives is the same part.
Are the CS255 and CS 2550 pages the same machine?
The catalog carries both names, and they are not the same page. The cartridges on this series shelf are the 1T02K30US0 listings filed under the CS255 and CS305 names; the CS 2550 model page in the directory below carries its own listings. Match the name on your machine's nameplate to the page.
Why do the listings say Kyocera-Mita when my machine says Copystar?
Because the listings are filed under the manufacturer's name, and Copystar was a brand of that manufacturer rather than a separate maker. The part number is the identity that matters; the badge is only the channel the machine was sold through.