ESTON #664 XL Black/Color Ink for Deskjet Ink Advantage 1115 2136 3636 3836 (1Black 1Color) Include : 1 Black 664XL + 1 Tricolor 664XL Remanufactured Printer Ink (Show ink level) Type: Premium Compatible/Remanufacture (print quality same as the Original product) Page Yield: Black is 600 pages per cartridge; Color is 450 pages per cartridge. Volume of ink is equal to OEM Compatible Printer List: DeskJet Ink Advantage 1115; DeskJet Ink Advantage 2136 All-in-One; DeskJet Ink Advantage 3635; DeskJet Ink Advantage 3636 All-in-One; DeskJet Ink Advantage 3836 All-in-One; DeskJet Ink Advantage 4536 All-in-One; DeskJet Ink Advantage 4675; DeskJet Ink Advantage 4676 All-in-One Guarantee :1 -year limited warranty , Quality after-sales service to ensure 100% satisfied 662BKXL : 600 Pages , 662CXL : 450 Pages (at 5% coverage of A4 ) 1 x 664XL Black, 1 x 664XL Tri-color DeskJet Ink Advantage 1115; DeskJet Ink Advantage 2136 All-in-One<br> DeskJet Ink Advantage 3636 All-in-One; DeskJet Ink Advantage 3836 All-in-One<br> DeskJet Ink Advantage 4536 All-in-One; DeskJet Ink Advantage 4676 All-in-One Pleaseignore it and press &#034;OK&#034; button to continue printing,all our ink cartridges are filled with full ink (not quality problem) Step1: Take off the ink cartridge and reinstall it. If issue still remain, please do a several time. Step2: Clean the chip (contactor points) of ink cartridge with rubber or alcohol cotton swab. If necessary, clean also printer contactor points and do a noozle test