公开(公告)号：US11298944B2

公开(公告)日：2022-04-12

申请号：US16958200

申请日：2018-01-25

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

Inventor： William S Osborne ,  John J Cantrell

IPC: B41J2/175

Abstract: An example system includes an ink tank including a feeder tank, wherein the feeder tank is to hold a fluid therein, the feeder tank having a port, the feeder tank being under a negative gauge pressure. The example system further includes a print cartridge in fluid communication with the port of the feeder tank, the print cartridge having a nozzle plate. The port of the feeder tank is positioned to a lower corner of the feeder tank distally to the print cartridge, wherein the nozzle plate is disposed above a predetermined level within the feeder tank when the system is not tilted, the predetermined level corresponding to a free surface of a predetermined volume of the fluid when the system is not tilted. When the system is tilted to position the nozzle plate below the port, the volume of fluid uncovers the port.

公开(公告)号：US11305548B2

公开(公告)日：2022-04-19

申请号：US16754295

申请日：2017-10-20

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

Inventor： John J Cantrell ,  Keith Jariabka ,  Theodore J Conley ,  William S Osborne

IPC: B41J2/175 ,  B41J29/13 ,  B65D43/16

Abstract: An ink tank includes a cap assembly attached to the ink tank by a preloaded hinge that defines a rotational axis of the cap assembly when the cap assembly is opened and closed. The preloaded hinge biases the cap assembly to an opened position when the cap assembly is unlatched. The cap assembly includes a cap housing, a bung retained within the cap housing, a spring disposed between the cap housing and the bung, a latch to hold the cap assembly in a closed position, where in the closed position the spring applies a force to provide a seal between the bung and the ink tank. The cap assembly also includes an effector that is operative when the cap assembly is unlatched, to sequence a closing of an internal valve of the ink tank and a breaking of the seal between the bung and the ink tank thereafter.

公开(公告)号：US20210070055A1

公开(公告)日：2021-03-11

申请号：US16958200

申请日：2018-01-25

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

Inventor： William S Osborne ,  John J Cantrell

IPC: B41J2/175

Abstract: An example system includes an ink tank including a feeder tank, wherein the feeder tank is to hold a fluid therein, the feeder tank having a port, the feeder tank being under a negative gauge pressure. The example system further includes a print cartridge in fluid communication with the port of the feeder tank, the print cartridge having a nozzle plate. The port of the feeder tank is positioned to a lower corner of the feeder tank distally to the print cartridge, wherein the nozzle plate is disposed above a predetermined level within the feeder tank when the system is not tilted, the predetermined level corresponding to a free surface of a predetermined volume of the fluid when the system is not tilted. When the system is tilted to position the nozzle plate below the port, the volume of fluid uncovers the port.

公开(公告)号：US20200338898A1

公开(公告)日：2020-10-29

申请号：US16754295

申请日：2017-10-20

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

Inventor： John J Cantrell ,  Keith Jariabka ,  Theodore J Conley ,  William S Osborne

IPC: B41J2/175 ,  B41J29/13 ,  B65D43/16

Abstract: An ink tank includes a cap assembly attached to the ink tank by a preloaded hinge that defines a rotational axis of the cap assembly when the cap assembly is opened and closed. The preloaded hinge biases the cap assembly to an opened position when the cap assembly is unlatched. The cap assembly includes a cap housing, a bung retained within the cap housing, a spring disposed between the cap housing and the bung, a latch to hold the cap assembly in a closed position, where in the closed position the spring applies a force to provide a seal between the bung and the ink tank. The cap assembly also includes an effector that is operative when the cap assembly is unlatched, to sequence a closing of an internal valve of the ink tank and a breaking of the seal between the bung and the ink tank thereafter.

公开(公告)号：US09475297B2

公开(公告)日：2016-10-25

申请号：US14962177

申请日：2015-12-08

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

Inventor： Iain Campbell-Brown ,  Eugene Cahill ,  William S Osborne ,  Anoop Haridasan ,  Ivor Cummins

IPC: B41J2/175 ,  B41J2/19 ,  B41J2/14

CPC classification number: B41J2/1752 ,  B41J2/14 ,  B41J2/17513 ,  B41J2/17523 ,  B41J2/17553 ,  B41J2/19 ,  B41J2202/02

Abstract: In one example, a structure for supporting a printhead includes: a substrate having a first side and a second side; an inlet tower through which liquid may be introduced into the structure; an opening through the substrate near the inlet tower; and an air channel along the substrate connecting the opening in the substrate to the atmosphere.

Abstract translation: 在一个示例中，用于支撑打印头的结构包括：具有第一侧和第二侧的基板; 入口塔，液体可以通过入口塔引入结构中; 通过入口塔附近的基板的开口; 以及沿着基板将基板中的开口连接到大气的空气通道。