公开(公告)号：US20210206102A1

公开(公告)日：2021-07-08

申请号：US16075443

申请日：2017-07-28

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Samuel JEONG ,  Michael EWE

IPC: B29C64/364 ,  B29C64/209 ,  B33Y30/00

Abstract: An electronic device includes a carriage to move along an axis relative to a platform. In addition, the electronic device includes a print head disposed within the carriage to move with the carriage and to deliver a print agent to the platform. Further, the electronic device includes a cooling system. The cooling system includes an air source to deliver air to the print head within the carriage to cool the print head. The cooling system also includes a pressure sensor to measure a pressure of a first zone within the carriage. Moreover, the cooling system includes a controller to control a flow rate of the air into the first zone or from the first zone in response to the measured pressure to maintain the first zone at a positive pressure with respect to a second zone outside the carriage.

公开(公告)号：US20210205891A1

公开(公告)日：2021-07-08

申请号：US16075630

申请日：2017-07-28

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Samuel JEONG

IPC: B22F12/20 ,  B29C64/153 ,  B29C64/209 ,  B22F12/53

Abstract: In some examples, an electronic device includes a print head to move relative to a platform parallel to a first axis and parallel to a second axis to deliver a print agent to the platform. The second axis is oriented at a non-zero angle relative to the first axis. In addition, the electronic device includes a cooling system having a first air duct coupled to the print head to provide air to the print head. The print head is to move with the first air duct parallel to the first axis, and to move relative to the first air duct parallel to the second axis.