Patent ID: 9744730
Date: 2017-08-29
CPC Classifications: B29C,G03G

Claim:
1. An electrophotography-based additive manufacturing system for printing a three-dimensional part, the additive manufacturing system comprising: a printing mechanism configured to print imaged layers of charged powder material to a moving belt; and a platen assembly comprising: a platen plate having a top surface having a plurality of spaced apart members extending therefrom; and one or more magnets secured to the platen plate and configured to generate one or more magnetic fields at the top surface of the platen plate; wherein the platen assembly is configured to magnetically couple a build sheet to the top surface of the platen plate due to the one or more generated magnetic fields and the plurality of spaced apart members are configured to be accepted by a plurality of apertures in the build sheet, and wherein the build sheet is configured to receive the printed layers from the printing mechanism wherein the platen assembly moves in a synchronized rate of speed with the imaged layer to transfer the imaged layer from the moving belt to the platen or previously printed part layers over time using heat and pressure.