①Product information: Name: Compatible 131A | CF210A Toner Cartridge Products include: 1 x CF210A black, 1 x CF211A cyan, 1 x CF212A magenta, 1 x CF213A yellowPage yield: 1600 pages of black and 1800 color toner cartridges with 5% coverage ② characterized:The latest version of the chip helps to identify the toner cartridge and displays the accurate amount of toner. OPC photosensitive drum: A high-quality OPC photosensitive drum with a thick coating that provides a long-lasting printing experience. Toner: Refined toner is incredibly close to the original toner cartridge for high-precision printing.ISO-9001 and ISO-140001 certified factories. The produced high-quality toner cartridge has excellent color and clear text printing, and the shelf life is up to 1 year. Each product has passed the factory printing test, we provide excellent printing quality and reliable performance to achieve fast, professional printing quality. ③ Tips: ✔ Please confirm the printer model before ordering. ✔ When installing these cartridges, you may receive a message stating that the cartridge is "non-genuine". Follow the printer prompts and press "OK" or "Continue" to bypass the message.✔ To improve print quality, it is best to clean the print head before printing with a new ink cartridge (in "Printer Properties"). ④ Printer compatibility: HP Color LaserJet Pro M251n, M251nw /MFP M276n/M276nw ⑤easy to install: Step 1: Gently shake the toner cartridge from side to side to distribute the toner evenly in front of us. Step 2: Remove the sealing tape marked "Pulled out" from the end of the toner cartridge. Step 3: Remove the orange cover (the imaging drum is very fragile. Fingerprints may cause print quality problems).