①Product Information:Product Name : HP 126A CE310A compatible toner cartridge.product Include : 1 x CE310A Black, 1 x CE311A Cyan, 1 x CE313A Magenta, 1 x CE312A Yellow.Page Yield : 1,200 pages black and 1,000 color toner cartridge @ 5% coverage.②Characteristic:newest version Chip help recognize toner cartridges and Show accurate Level.OPC Drum: High quality OPC drum with thicker coating provides long-lasting printing experience.Toner: Refined toner is incredibly close to the genuine cartridge to achieve a High precision printing.ISO-9001 and ISO-140001 Certificate Approved factory . made High-Quality toner Cartridge, Print with excellent color and crisp text ,Up to 1 years shelf life.every product passes the factory print test,We offer great print quality and reliable performance for fast, professional printing quality.③Warm Tips:✔ Please confirm your Printer Model before placing an order. ✔ When installing these cartridges, you might get a message saying that the cartridge is a "non-genuine". Follow your printer's prompts press "OK" or "continue" to bypass the message.✔ To improve the printing quality, it’s better to clean the printhead (in Printer Properties) before printing with a new cartridge.④Printer Compatibility:HP Laserjet Pro CP1021/CP1022/CP1023/CP1025/C P1025nw/CP1026nw/CP1027nw/CP1028nwHP LaserJet 200 color MFP M175nw/M175a/M175b/M175c/ M175e/M175p/M175r/M275s/M275t/M275u/M275nw⑤Easy Installment:Step 1: Gently shake the toner cartridge from side to side to distribute the toner evenly before us.Step 2: Remove the sealing tape marked as "Pull out " from the end of the toner cartridge.Step 3: Remove the orange cover ( imaging drum is very delicate. Fingerprints can cause print-quality problem).