HP Q5421A Maintenance Kit for Laserjet 4240/4250/4350

With the HP Q5421A Maintenance Kit, you'll experience high-quality, long-lasting results that are sure to impress any audience. Designed for simple replacement and easy operation, the Q5421A guarantees to meet the same high standards as your Hewlett-Packard printer. Enjoy consistently smooth, professional output from the first page to the last.