These printers use the TK-592M cartridge:
Kyocera-Mita FS C-2026 MFP +
Kyocera-Mita FS C-2026 MFP
Kyocera-Mita FS C-2126 MFP +
Kyocera-Mita FS C-2126 MFP
Kyocera-Mita FS C-2526 MFP
Kyocera-Mita FS C-2626 MFP
Kyocera-Mita FS C-5250 DN
Kyocera-Mita M 6026 CDN
Kyocera-Mita M 6026 CIDN
Kyocera-Mita M 6526 CDN
Kyocera-Mita M 6526 CIDN
Kyocera-Mita P 6026 CDN
Kyocera FS C-2026 MFP
Kyocera FS C-2126 MFP
Kyocera FS C-2526 MFP
Kyocera FS C-2626 MFP
Kyocera FS C-5250 DN