These printers use the TK-592C 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