公开(公告)号：US20180022127A1

公开(公告)日：2018-01-25

申请号：US15546209

申请日：2015-04-17

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, LP.

Inventor： Francesc Roure Pastor ,  Santiago Forcada ,  David Soriano Fosas

IPC: B41J29/377 ,  B41J29/393 ,  B41J2/01

CPC classification number: B41J29/377 ,  B41J2/01 ,  B41J2/04515 ,  B41J29/00 ,  B41J29/393 ,  H05K7/20

Abstract: An apparatus includes a processor to provide a control Signal for a printhead of a printer and a housing including a cavity. The processor is arranged in the cavity. The apparatus has a first opening and a second opening in the housing and in communication with the cavity. The first opening receives a first part of a fluid flow passing the housing, and the second opening discharges heated fluid from the cavity.

公开(公告)号：US20170315161A1

公开(公告)日：2017-11-02

申请号：US15522683

申请日：2014-11-13

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, LP.

Inventor： Sergio Alejandro Lopez Ramos ,  Juan Luis Lopez Rodriguez ,  David Soriano Fosas

IPC: G01R19/165 ,  G01R17/02

CPC classification number: G01R19/16576 ,  G01R17/02 ,  G01R19/16571 ,  G01R31/1236

Abstract: Example implementations relate to circuits. For example, an implementation includes a detection circuit including a comparator circuit. The comparator circuit includes a first input terminal, a second input terminal, and an output terminal. The detection circuit also includes a reference voltage circuit to provide a set point voltage to the comparator circuit via the first input terminal. The detection circuit further includes a diode to reduce the set point voltage from a first magnitude to a second magnitude when the first magnitude is equal to or lower than a magnitude of the load voltage.