The following appears on 3dprint.com

There have been precious few technical details about the new Multi Jet Fusion (MJF) 3D printing technology that HP Inc. is developing and that they say will revolutionize the 3D printing industry. We know that it will be a full-color 3D printing process, is said to be up to ten times faster than current 3D printing methods, considerably cheaper than most industrial 3D printers on the market and that the process is based on their existing, high resolution 2D thermal inkjet technology. But beyond that, and a brief white paper, the company has been pretty tight-lipped about exactly how the MJF printer will work, when exactly we would see it and exactly what types of objects it will be capable of 3D printing.

Currently we know that two separate MJF thermal inkjet arrays will work together to build the full-color three-dimensional part. One array will lay down the basic building blocks and structure of the part while the second array combines the coating, color and fusing steps that will solidify and give the part the desired strength and texture. During the first pass, the first array will run left to right, while the second will run top to bottom. Then, after each layer, both arrays will change direction to maximize the coverage and productivity. HP says that this will make printing speeds up to ten times faster than selective laser sintering (SLS) and fused deposition modeling (FDM) processes without sacrificing part detail.

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