SuppliesMAX Compatible Brand Toner Cartridge (2/PK-20000 Page Yield) for HP LJ Enterprise Flow MFP M528C / HP LJ Enterprise Flow MFP M528Z / HP LJ Enterprise M507DN / HP LJ Enterprise M507DNG / HP LJ Enterprise M507N / HP LJ Enterprise M507X / HP LJ Enterprise MFP M528DN / HP LJ Enterprise MFP M528F / Troy MICR M507DN / Troy MICR M528C / Troy MICR M528F - (SPECIAL NOTE: The Toner Cartridge DOES NOT Have a Chip ; Please make sure you still keep the original chip before purchasing. To use this product, you need to transfer chip from OEM HP 89Y CF289Y toner to do it. We provide you with user guide and specific tools for installing chip ; Because using old chips, the toner level won't show full and your printer will display CARTRIDGE LOW warning. Please click SNOOZE and CHOOSE 2 MONTH to close the warning. If you haven't finished in two months, then still choose SNOOZE AND 2 months.)