INK E-SALE 89A CF289A Toner Cartridge Compatible Replacement for HP 89A Toner Cartridge (with Chip) for HP Enterprise M507dn M507X M507dng MFP M528f M528c M528z M528 M507 Series Printer Ink, 2-Pack

[WITH CHIP] Our products contain the new CHIP to ensure showing ink level and being adapted to the newest printer firmware version. ^^ [Page Yield] Each black toner cartridge prints up to 5, 000 pages at 5% coverage (Letter/A4). ^^ [Compatible Printer] HP Enterprise M507n M507dn M507dng M507x M507; Enterprise MFP M528dn M528f, Enterprise Flow MFP M528c M528z M528 Series Printers ^^ [Attention] When you touch the chip, static electricity may be created and thus the chip could become malfunctioned. To prevent this, please do not touch the chip during installing the toner cartridges.

And if you see any error message such as "The indicated cartridges are not HP cartridges", please press "OK" to continue. ^^ [Maintain the Printer] So as to reduce the interruptions during printing, please disregard the update notification and chose the "No to check" to turn off the auto-update function.