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Printing system with self-purge sediment prevention and fumes removal arrangements

  • US 10,315,427 B2
  • Filed: 09/26/2016
  • Issued: 06/11/2019
  • Est. Priority Date: 05/02/2010
  • Status: Active Grant
First Claim
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1. A printing system for manufacturing three-dimensional objects, the system comprising:

  • a housing for supporting a print head having a plurality of nozzles located in a nozzle area for expelling a printing fluid towards a printing area during a multi-layer additive process;

    a mask located between the nozzle area and the printing area, the mask including an opening through which the printing fluid is expelled towards the printing area;

    at least one processor configured to cause a purging of the print head by forcing printing fluid through the plurality of nozzles when the print head is not printing; and

    a pump configured to remove the purged printing fluid and to prevent the purged printing fluid from dripping through the opening.

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