World Class Ink offers a full satisfaction guarantee on all Lexmark 40X7100 Maintenance Kit. We strive to keep all products, including this Lexmark 40X7100 Maintenance Kit, in stock at all times. World Class Ink will ship your Lexmark 40X7100 immediately so that you receive your order quickly and accurately. Once you receive your Lexmark 40X7100 Maintenance Kit, should you require any assistance at all, please do not hesitate to contact World Class Ink Customer Support. We will make every effort to ensure you are completely satisfied with your purchase of this Lexmark 40X7100.