When you refill a LEXMARK 70C0H20 (#700H2), 70C0X20 (#700X2), 70C10C0 (#701C), 70C1HC0 (#701HC) or 70C1XC0 (#701XC) cartridge, you must replace the chip. This chip is already included with our refill kit. This chip will run for 3000 pages at 5% coverage.