公开(公告)号：US20240198691A1

公开(公告)日：2024-06-20

申请号：US18533837

申请日：2023-12-08

Applicant: CANON KABUSHIKI KAISHA

Inventor： MASAYA UETSUKI ,  Yosuke Ishii

IPC: B41J2/21 ,  B41J2/195 ,  B41J2/205 ,  B41J29/393 ,  C09D11/322

CPC classification number: B41J2/2107 ,  B41J2/195 ,  B41J2/2056 ,  B41J29/393 ,  C09D11/322 ,  B41J2029/3935

Abstract: A printing apparatus includes: a printing unit configured to eject a color material ink and a reaction liquid; a controller configured to control the printing unit such that the printing unit prints a first test pattern in which a plurality of patches are arranged; a first obtaining unit configured to obtain an optical density for each of the plurality of patches; a second obtaining unit configured to obtain a specular reflection intensity for each of the plurality of patches; and a first generation unit configured to generate correction information based on the optical density obtained by the first obtaining unit, the specular reflection intensity obtained by the second obtaining unit, a first target value of the optical density for a first input value of the color material ink, and a second target value of the specular reflection intensity for a second input value of the reaction liquid.

公开(公告)号：US20190202209A1

公开(公告)日：2019-07-04

申请号：US16232790

申请日：2018-12-26

Applicant: CANON KABUSHIKI KAISHA

Inventor： Junichi Nakagawa ,  Yumi Yanai ,  Seiji Abe

IPC: B41J2/195

CPC classification number: B41J2/195 ,  B41J2/17566 ,  B41J2/18 ,  B41J2/19 ,  B41J2002/17589

Abstract: A printing apparatus includes a circulation pathway that circulates an ink between a pressure chamber of a printing head and the outside thereof. The number of eject of the ink to be ejected from an ejection port of the printing head to a unit printing area is set according to a concentration of the ink in the circulation pathway.

公开(公告)号：US20190193441A1

公开(公告)日：2019-06-27

申请号：US16326818

申请日：2016-10-21

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

Inventor： Peter MOROVIC ,  Jan MOROVIC ,  Jordi ARNABAT BENEDICTO ,  Hector GOMEZ MINANO

IPC: B41J29/393 ,  B41J2/195 ,  B41J2/21 ,  G06K15/02

CPC classification number: B41J29/393 ,  B41J2/195 ,  B41J2/2146 ,  B41J2029/3935 ,  G06K15/027

Abstract: An apparatus and method for use in generating calibration parameters for a printing apparatus comprising a plurality of print modules are disclosed. The method comprises printing a first plurality of test patches for each print module of the plurality of print modules, analysing the first plurality of test patches to identify at least two clusters of print modules, wherein each cluster comprises a sub-group of print modules having substantially similar performance, printing a second plurality of test patches comprising an extended calibration test patch set for each cluster of print modules, the second plurality of test patches being distributed across the print modules of the cluster, and analysing extended calibration test patch set for each cluster to determine a calibration parameter for the printing apparatus.

公开(公告)号：US20190160823A1

公开(公告)日：2019-05-30

申请号：US16263883

申请日：2019-01-31

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

Inventor： Curtis Voss ,  Palitha Wickramanayake

IPC: B41J2/175 ,  B41J2/14 ,  B41J2/195 ,  B41J2/165

CPC classification number: B41J2/17513 ,  B41J2/14129 ,  B41J2/165 ,  B41J2/195 ,  B41J2002/16502

Abstract: A printhead device includes firing chambers, nozzles, and shipping fluid. The shipping fluid includes a shipping fluid density and a shipping fluid viscosity greater than a corresponding ink density and ink viscosity of an ink that will be ejected from the firing chambers and through the nozzles.

公开(公告)号：US20190001687A1

公开(公告)日：2019-01-03

申请号：US16022615

申请日：2018-06-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Masahiko SATO ,  Hiroyuki HAGIWARA ,  Hisashi SATO ,  Katsuhiro OKUBO

IPC: B41J2/175 ,  B41J2/14 ,  B41J2/195

CPC classification number: B41J2/17513 ,  B41J2/14 ,  B41J2/14233 ,  B41J2/175 ,  B41J2/17596 ,  B41J2/19 ,  B41J2/195 ,  B41J2002/14241 ,  B41J2002/14419 ,  B41J2202/20

Abstract: A liquid discharging head includes an external cover portion which is connected to a liquid discharging apparatus and which discharges a liquid from a nozzle, in which the external cover portion includes a first gas hole for communicating a first gas flow path which is provided inside the external cover portion with an atmosphere, a second gas hole for carrying a gas between a second gas flow path which is provided inside the external cover portion and the liquid discharging apparatus, and a first liquid hole for carrying the liquid between a liquid flow path which is provided inside the external cover portion and the liquid discharging apparatus, and in which the first gas hole and the second gas hole are disposed separately in the external cover portion.

公开(公告)号：US20180219188A1

公开(公告)日：2018-08-02

申请号：US15881904

申请日：2018-01-29

Applicant: Tokyo Electron Limited

Inventor： Yousuke Mine ,  Kazuhito Miyazaki

IPC: H01L51/56 ,  H01L51/00 ,  H01L21/66 ,  B41J2/195 ,  B41J2/17

CPC classification number: H01L51/56 ,  B05B15/50 ,  B41J2/14016 ,  B41J2/14201 ,  B41J2/1721 ,  B41J2/195 ,  B41J3/28 ,  B41J3/407 ,  B41J2002/1742 ,  H01L22/20 ,  H01L51/0005 ,  H01L51/5012 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H05B33/10

Abstract: Disclosed is a coating device which draws a pattern of a functional liquid on a substrate. The coating device includes: a substrate holding unit which holds the substrate; a droplet discharging unit which discharges a droplet of the functional liquid on the substrate held by the substrate holding unit; a moving unit which relatively moves the substrate holding unit and the droplet discharging unit in a main scanning direction and a sub scanning direction on a base; a mass measuring unit including a cup which receives the droplet discharged by the droplet discharging unit and a mass measuring device which measures a mass of the functional liquid accumulated in the cup; and a liquid drain unit which drains the functional liquid accumulated in the cup.

公开(公告)号：US20180207945A1

公开(公告)日：2018-07-26

申请号：US15872729

申请日：2018-01-16

Applicant: KYOCERA Document Solutions Inc.

Inventor： Okito OGASAHARA

IPC: B41J2/195 ,  B41J2/155 ,  B41J2/36

CPC classification number: B41J2/195 ,  B41J2/14 ,  B41J2/155 ,  B41J2/2135 ,  B41J2/2146 ,  B41J2/362 ,  B41J11/007 ,  B41J29/38

Abstract: In an inkjet recording apparatus, a control section forms a test chart in which a plurality of lines, each extending along the recording-medium width direction, are drawn arranged along the recording-medium conveyance direction by making the ink ejection nozzles eject ink, while gradually changing either ink ejection timing with respect to each of the ink ejection nozzles or a recording-medium conveyance speed. Furthermore, the control section checks for, and corrects, pixel deviation in the recording-medium conveyance direction based on the test chart.

公开(公告)号：US09975353B2

公开(公告)日：2018-05-22

申请号：US15384611

申请日：2016-12-20

Applicant: SEIKO EPSON CORPORATION

Inventor： Keigo Sugai

IPC: B41J11/00 ,  B41J2/105 ,  B41J2/18 ,  B41J2/185 ,  B41J2/195 ,  B41J2/16 ,  B41J2/14 ,  B41J2/165 ,  B41J2/055

CPC classification number: B41J11/002 ,  B41J2/055 ,  B41J2/105 ,  B41J2/14233 ,  B41J2/1606 ,  B41J2/16517 ,  B41J2/16535 ,  B41J2/16538 ,  B41J2/16552 ,  B41J2/18 ,  B41J2/185 ,  B41J2/195 ,  B41J2002/14241 ,  B41J2002/14362 ,  B41J2002/14419 ,  B41J2002/1853

Abstract: A liquid discharge apparatus includes: a head unit that has a plurality of nozzles that discharge a column-shaped liquid; a liquid droplet generating unit that applies cyclically changing energy to positions of the column-shaped liquids discharged from the plurality of nozzles, respectively, which are separated from the plurality of nozzles, respectively, and that generates liquid droplets; and a direction changing unit that changes a flying direction of at least some liquid droplets of the generated liquid droplets.

公开(公告)号：US20180072081A1

公开(公告)日：2018-03-15

申请号：US15470428

申请日：2017-03-27

Applicant: BROTHER KOGYO KABUSHIKI KAISHA

Inventor： Aya KIMURA ,  Toshio SUGIURA

IPC: B41J29/393

CPC classification number: B41J2/125 ,  B41J2/195 ,  B41J2/2135 ,  B41J29/38 ,  B41J2029/3935

Abstract: A method of printing a test pattern in a printer includes printing a related-information acquisition pattern as the test pattern in a particular state by driving a plurality of drive elements of a liquid ejection head to eject a liquid droplet from a plurality of nozzles based on a temperature detected by a temperature sensor. The related-information acquisition pattern is a pattern for acquiring related information relating to at least one of an ejection amount and a liquid droplet landing position of the liquid droplet ejected from each of the plurality of nozzles. The liquid droplet landing position is a position at which the liquid droplet ejected from each of the plurality of nozzles lands on a recording medium. The particular state is a state where a temperature difference between the temperature detected by the temperature sensor and an actual temperature of the liquid ejection head is constant.

公开(公告)号：US09744773B2

公开(公告)日：2017-08-29

申请号：US15300662

申请日：2014-04-22

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

Inventor： Daryl E Anderson

IPC: B41J29/38 ,  B41J2/195

CPC classification number: B41J2/195

Abstract: A method for determining characteristics of an ink is described. The method includes subjecting the ink of an inkjet printing system to an alternating signal of a first frequency to generate response signals from the ink, where the response signals include at least a response voltage signal and a response current signal. The method further includes comparing the response voltage signal to a predetermined voltage threshold, to generate a voltage phase signal, and comparing the response current signal to a predetermined current threshold, to generate a current phase signal. The method also includes tuning at least one of the predetermined voltage threshold and the predetermined current threshold to determine a balance point, and identifying a first relative phase difference between the voltage phase signal and the current phase signal, where the first relative phase difference is indicative of characteristics of the ink corresponding to the first frequency.