公开(公告)号：US20180009167A1

公开(公告)日：2018-01-11

申请号：US15546595

申请日：2015-01-30

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Ignacio Alejandre ,  Sergi Culubret ,  Esteve Comas

IPC: B22F3/105 ,  G01N15/06 ,  B29K105/00

CPC classification number: B29C64/371 ,  B22F3/1055 ,  B22F2003/1057 ,  B29C64/112 ,  B29C64/20 ,  B29C64/393 ,  B29C2037/94 ,  B29K2105/251 ,  B33Y30/00 ,  B33Y50/02 ,  G01N15/0612 ,  G01N2015/0693

Abstract: In one example, a print head drop detector (202) is described. The print head drop detector (202) comprises a sampling volume and a fan (208) to cause an airflow though the sampling volume (206). Detection apparatus to detect the presence of non-gaseous material within the sampling volume is also provided.