Product Description♥Product Name: Toner Cartridge♥Compatible toner cartridge models:For Kyocera TK-678♥Applicable printer model:For Kyocera KM-2540 printerFor Kyocera KM-2560 printerFor Kyocera KM-3040 printerFor Kyocera KM-3060 printer♥Color: black♥Page Yield: black about 20,000 pages base on 5% printing coverage on A4 paper.♥Product features:--Brand new drum core, clear printing resolution, high blackness value, wear-resistant drum core, good compatibility--Delivers lasting, brilliant prints, sharper images and high-quality output.--Easy installation, high performance and 100% quality testing, strive for satisfaction.♥Multi application: widely used in school, office and home♥Storage method: Store in a dry and cool environment without exposure to the sun♥Installation method:1. Shake left and right, shaking several times to make the toner evenly distributed2. Pull out the seal and pull it out in the direction of the arrow to avoid breaking3. Load the printer, put the toner cartridge into the printer correctly♥Note:1.Store in a normal environment (normal temperature and humidity)2.Avoid direct sunlight and close to heat sources (such as heating and steam pipes)♥After-sales service:Customer satisfaction is our top priority. If you have any questions or concerns, Please do not hesitate to email us, we'll respond to you within 24 hours.