公开(公告)号：US20210178751A1

公开(公告)日：2021-06-17

申请号：US16712725

申请日：2019-12-12

Applicant: Xerox Corporation

Inventor： Christopher T. Chungbin ,  Kareem N. Tawil ,  Zachary S. Vader

IPC: B41J2/03 ,  B41J2/16 ,  B41J2/05 ,  B41J2/175 ,  B41J2/045

Abstract: A jetting assembly for ejecting a print material includes an actuator for applying a pressure to the print material, and further includes jetting assembly block that defines a pump chamber, a converging part (i.e., a narrowing taper), and a nozzle bore that ends or terminates in a nozzle from which a drop of the print material is ejected. An implementation can further include a throat and a diverging part that, together with the converging part, forms a venturi. The converging part results in an increase in a velocity of the print material and a decrease in pressure as the print material passes an supply port of a supply channel. The decrease in pressure can result in a replacement of at least a portion of the drop volume within the throat or the nozzle bore even before the drop is ejected from the nozzle.

公开(公告)号：US20210121947A1

公开(公告)日：2021-04-29

申请号：US16666212

申请日：2019-10-28

Applicant: XEROX CORPORATION ,  Palo Alto Research Center Incorporated

Inventor： David A. Mantell ,  Daniel R. Cormier ,  Christopher T. Chungbin ,  Zachary S. Vader ,  Viktor Sukhotskiy ,  Scott J. Vader ,  David Tilley

IPC: B22D23/00 ,  B33Y10/00

Abstract: A method for printing a structure, the structure including a plurality of pillars. The method for printing can include ejecting only a first drop of a print material such as a liquid metal sequentially at each of a plurality of pillar locations, then ejecting only a second drop of the print material sequentially onto the first drop at each of the plurality of print locations. Additional drops can be ejected at two or more of the pillar locations to form the plurality of pillars. Ejecting only a first drop at each pillar location allows the first drop to cure (i.e., cool or dry) before ejecting the second drop. The printer continues printing while the drops cure, thus improving processing efficiency and increasing production throughput.