When you refill a LEXMARK 80C0H30 (#800H3), 80C0S30 (#800S3), 80C0X30 (#800X3), 80C10M0 (#801m), 80C1HM0 (#801HM), 80C1SM0 (#801SM) or 80C1XM0 (#801XM) cartridge, you must replace the chip. This chip is already included with our refill kit. This chip will run for 2000 pages at 5% coverage.