Compatible BLACK Chip for Oki C9650 and C9850

• USA region chip for Oki 42918984 black cartridge. This chip only works with printer purchased in North America.
• 18,500 sheet Yield at 5% coverage.
• Replace the chip to reset the cartridge when you refill.
• The European region chip and full range of toner refills are available at the TonerTopUp online store.