HP 3D printing HP, a large information technology company known for developing printers, computers and software, started to look into developing 3D printers around 2012. This profile focuses on the company's 3D printing activities. HP has developed three product ranges of plastic 3D printers, all of which use the company's proprietary MultiJet Fusion Technology to produce 3D printed parts. It has also created a metal 3D printer called Metal Jet. HP 3D printing