These printers use the TK-602 cartridge:

Royal-Copystar CS 7530

Royal-Copystar RI 4530

Royal-Copystar RI 5530

Royal-Copystar RI 6330

Kyocera-Mita KM 4530

Kyocera-Mita KM 5530

Kyocera-Mita KM 6330

Kyocera-Mita KM 7530