The Kyocera TK-1270 is a black toner cartridge for printing, identified by part number 1T0C140NL0. Use it as a replacement toner supply in compatible Kyocera printers.
Its listed yield is 10,000 pages. Compatibility is specified for Kyocera ECOSYS MA4000fx, ECOSYS MA4000wifx and ECOSYS MA4000x, so check that your printer is one of these models before choosing this cartridge.
The TK-1270 is for black printing on those ECOSYS devices. The yield offers a guide for routine document printing; actual page count depends on printed content and usage conditions.