公开(公告)号：US20160009103A1

公开(公告)日：2016-01-14

申请号：US14864292

申请日：2015-09-24

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

Inventor： Francesc ROS CERRO ,  Macià SOLÉ PONS ,  David RAMÍREZ MUELA ,  Li Qian

IPC: B41J2/19 ,  B41J2/17

CPC classification number: B41J2/19 ,  B41J2/16526 ,  B41J2/1707 ,  B41J2/17513 ,  B41J2/17556 ,  B41J2002/17516

Abstract: A print head priming system comprises a vent closure section to close a vent, where the vent is to compensate backpressure in a print head. An inlet to receive pressurized gas from a source of pressurised gas is to provide the pressurized gas to the print head. A pressure relief valve is to open in response to pressure in the print head reaching or exceeding a predetermined value by the provision of gas to the print head by the source of pressurised gas.