These printers use the Copystar TK-342 cartridge:

Royal-Copystar FS-2020

Kyocera FS 2020

Kyocera FS 2020 D

Kyocera FS 2020 DN

Kyocera-Mita FS 2020

Kyocera-Mita FS 2020 D

Kyocera-Mita FS 2020 DN