Simple design, each accessory has been carefully designed to ensure stable operation and smooth printing. High quality and easy to use. Clear printing and firm fixation. Make the world clearer and purer. Meet your color requirements. Uses high-quality toner with uniform and fine particles for smooth printing. High-quality toner maintains consistent print quality. Ensures smooth printing with no toner leakage. Low waste toner rate. High blackness value. Precise matching does not damage the machine. Toner is environmentally friendly and odor-free. Easy to refill, saving time and effort. Instructions: 1. Remove the used toner and open the waste toner cover. 2. Gently shake the toner and pour out the waste toner from the bin. 3. Tear off the toner bottle seal and screw on the bottle cap. Open the powder filling port, align it, and slowly pour in the toner. 4. After adding toner, close the powder filling port cap and shake the toner horizontally left and right to distribute toner evenly. Equipped with a chip for immediate use upon installation. No need to replace the old chip. Type: Toner Compatibility: For Color LaserJet Pro MFP M454/454dn/M454dw/M479/M479dw/M479dn/M479fdw/M479fnw/M479fdn Print Yield: Up to 1400 pages, 1300 pages (5% coverage on A4 paper) Color: Black Material: Aluminum alloy + carbon powder Package Contents: 1 x Toner Note: Light reflection and different displays may cause slight color variation between the image and the actual item. Measurement may vary by +/- 1-3 cm.