For the following Printers (Click to link)
Kyocera ECOSYS M3550idn
Kyocera FS-4200DN
Kyocera FS-4300DN
Kyocera Toner for the above printers.
Yield: 25,000 pages A4, in accordance with the ISO/IEC19752 standard. Toner only required" drum and developer guaranteed to 2 years or 500,000 pages, whichever comes first.