When you refill a LEXMARK 70C0H30 (#700H3), 70C0X30 (#700X3), 70C10M0 (#701M), 70C1HM0 (#701HM) or 70C1XM0 (#701XM) 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.