Everything You Need To Know About MJF 3D Printing Process. In 2016, Hewlett Packard (HP) developed the (Multi Jet Fusion) MJF 3D Printing Process. This is oneof the finest feature resolution printing processes, which is the fastest too. It is obviously a high-resolutionprinting service that produces functional nylon prototypes. Let us brief everything you must know about MJF 3D Printing Service here in the blog below; What is MJF Printing Service? MJF stands for Multi Jet Fusion, a 3D printing technology invented by Hewlett Packard (HP) in 2016. It’sa powdered-bed printing process that uses powdered nylon, polypropylene or thermoplastic polyurethane (TP). It basically densifies the power used as raw material with infrared heat lamps in printing processing. The Common Applications For MJF 3D Printing Service: It is widely used for functional prototypes such as the followings; • Custom prosthetics. • Drone frames. • Aircraft rudder trim systems. • Automobile hinges (door support). • Dental implant moulds.