公开(公告)号：US10906313B2

公开(公告)日：2021-02-02

申请号：US16269327

申请日：2019-02-06

Applicant: Memjet Technology Limited

Inventor： Jason Thelander ,  David Burke ,  Andrew Thomas

IPC: B41J2/14 ,  B41J2/155 ,  B41J2/19 ,  B41J2/175 ,  B41J2/21 ,  B41J25/34

Abstract: A method of minimizing condensation on a lower surface of an inkjet printhead. The inkjet printhead has a plurality of printhead chips mounted on a manifold and a shield plate defining the lower surface. The method includes the steps of: disposing a heating layer between the manifold and the shield plate; heating the heating layer; and printing using the printhead chips, wherein heating of the heating layer minimizes condensation on the lower surface.

公开(公告)号：US10820424B2

公开(公告)日：2020-10-27

申请号：US16095163

申请日：2017-10-25

Applicant: SUNG AN MACHINERY CO., LTD.

Inventor： Yong Sung Kim ,  Ok Jin Kim ,  Jin Woo Seong ,  Young Jin Kim

IPC: H05K3/12 ,  B41J2/14 ,  B41J2/155 ,  B05C5/02 ,  B05C11/04 ,  H01L21/48 ,  H01L21/67

Abstract: Provided is a slot die with variable nozzles. The slot die with variable nozzles, which applies ink on a substrate to perform a coating process, includes: a first body having a cavity configured to accommodate ink supplied from the outside; a second body spaced apart from the first body in a transfer direction of a substrate or a direction opposite to the transfer direction; a shim plate coupled between the first body and the second body and having an discharge port configured to communicate with the cavity and discharge ink accommodated in the cavity toward the substrate; and a plurality of variable nozzles disposed at a lower end of the first body or the second body in a width direction of the substrate so as to be adjacent to the discharge port, wherein each of the plurality of variable nozzles is independently driven according to a state of the ink coated on the substrate and adjusts a partial discharge amount of the ink discharged from the discharge port by changing a partial area of the discharge port at an arrangement position thereof.

公开(公告)号：US10814619B2

公开(公告)日：2020-10-27

申请号：US16570652

申请日：2019-09-13

Applicant: Brother Kogyo Kabushiki Kaisha

Inventor： Shota Morikawa ,  Masashi Kuno ,  Satoru Arakane ,  Yoshiharu Furuhata ,  Shin Hasegawa

IPC: B41J2/045 ,  B41J2/155

Abstract: An image processing device configured to: determine whether a specific condition indicating ink supplied from an ink supplier to a printing head may be delayed; generate dot data by using image data, including: generating first dot data when the specific condition is not satisfied; and generating second dot data when the specific condition is satisfied, a ratio of first/second type of dots included in an image based on specific second dot data generated using specific image data being greater/smaller than that included in an image based on specific first dot data generated using the specific image data, and total number of dots included in the image based on the specific second dot data being larger that included in the image based on the specific first dot data; and output printing data based on the dot data.

公开(公告)号：US20200316967A1

公开(公告)日：2020-10-08

申请号：US16907356

申请日：2020-06-22

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tetsuyo Ohashi ,  Yasuyuki Takanaka ,  Tetsuya Ishikawa ,  Seiji Ogasawara ,  Noriko Sato ,  Akira Kida ,  Noboru Shimoyama

IPC: B41J11/13 ,  B41J25/304 ,  B41J2/155 ,  B41J13/00 ,  B41J13/10 ,  B41J11/06

Abstract: There is provided an inkjet printing apparatus capable of stably outputting high quality images in a configuration of feeding a print medium that is kept horizontal, performing printing by the use of a print head, and conveying the print medium vertically upward. To this purpose, a platen that supports the back side of the print medium in a position facing a printing part of the print head is located to support the print medium at an angle greater than 0° and less than 90° with respect to the horizontal direction, thereby reducing a contact pressure from roller pairs on the printed side immediately after printing.

公开(公告)号：US20200298574A1

公开(公告)日：2020-09-24

申请号：US16824181

申请日：2020-03-19

Applicant: SEIKO EPSON CORPORATION

Inventor： Kazunori TAKABAYASHI ,  Nobuhisa NOMOTO

IPC: B41J2/175 ,  B41J19/20 ,  B41J25/34 ,  C09D11/30 ,  B41J2/155 ,  B41J2/14 ,  H04N1/04

Abstract: A printer includes: a carriage that includes a recording head and is configured to move in a width direction intersecting a medium transport direction; a liquid storage unit that stores an ink supplied to the recording head, is mounted on the carriage, includes a filling port configured such that the ink is filled therethrough, and is formed of a light-transmissive material; a visual recognition unit that is provided in the liquid storage unit and is configured to visually recognize a position of a liquid level in the liquid storage unit; an illumination unit that emits a light beam; and a light guide unit that guides the light beam emitted from the illumination unit such that the light beam is applied to the visual recognition unit from a rear side, when the visual recognition unit faces a front side.

公开(公告)号：US10780695B2

公开(公告)日：2020-09-22

申请号：US16280499

申请日：2019-02-20

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

Inventor： Lawrence H White ,  Arun K Agarwal ,  Ron Burns

IPC: B41J2/14 ,  B41J2/155 ,  B41J2/21 ,  B41J2/175 ,  B41J3/54

Abstract: Printheads and printers are described herein. In one example, a printhead includes a number of drop generators disposed in a first array and a second array. The drop generators in both the first array and the second array are spaced one dot pitch apart perpendicular to the motion of a print medium, and alternate between a high drop weight (HDW) drop generator and a low drop weight (LDW) drop generator. Each drop generator in the first array is in a line of the motion of the print medium with a corresponding drop generator in the second array, wherein each HDW drop generator in the first array is in line with an LDW drop generator in the second array, and each LDW drop generator in the first array is in line with an HDW drop generator in the second array.

公开(公告)号：US10752028B2

公开(公告)日：2020-08-25

申请号：US16204326

申请日：2018-11-29

Applicant: Xerox Corporation

Inventor： Patricia J. Donaldson ,  James P. Calamita ,  David M. Kerxhalli

IPC: B41J11/42 ,  B41J2/155 ,  B41J15/16 ,  B41J25/00 ,  B41J15/04 ,  B41J2/21

Abstract: A printing system includes a pair of encoders to compensate for encoder noise in the velocity of a media transport as the transport moves past a plurality of printheads. One encoder monitors a roller that positioned at a location of low thermal stress and the signal generated by this encoder is used by a controller to maintain a constant velocity for the media transport. The second encoder monitors a roller used to drive the media transport and is positioned close to the print zone opposite the printheads. The signal from the second encoder is used to identify a corrected distance between each tic in the tics generated by the second encoder and the corrected distance is used to count a firing distance for generation of a dot clock signal to activate ejectors in a printhead when a substrate has traveled the firing distance.

公开(公告)号：US20200254788A1

公开(公告)日：2020-08-13

申请号：US16864976

申请日：2020-05-01

Applicant: MEMJET TECHNOLOGY LIMITED

Inventor： Mark Profaca

IPC: B41J11/00 ,  B41J2/155 ,  B41J29/02 ,  B41J25/304 ,  B41J2/165

Abstract: A print engine includes: a media support chassis having a plurality of guide rollers mounted between opposite sidewalls thereof, the plurality of guide rollers defining a curved media feed path; a plurality of spittoons, each spittoon being positioned between a neighboring pair of guide rollers and each spittoon having an upper guide portion; and a plurality of printheads, each printhead opposing a respective spittoon. The upper guide portion of each spittoon has an upstream leading edge sloped towards the media feed path and a downstream trailing edge sloped away from the media feed path.

公开(公告)号：US10731043B2

公开(公告)日：2020-08-04

申请号：US15950540

申请日：2018-04-11

Applicant: Seiko Epson Corporation

Inventor： Takuya Takahashi ,  Kunihiro Fujita ,  Yusuke Mizutaki

IPC: C09D11/38 ,  C09D11/033 ,  C09D11/324 ,  B41J2/155 ,  B41J2/14

Abstract: An aqueous ink jet ink composition contains a pigment, propylene glycol, and water, in which the aqueous ink jet ink composition has the viscosity of 3.0 mm2/s or more and 10.0 mm2/s or less at 20° C., the aqueous ink jet ink composition has the pH of 7 or more, the content of the pigment is 5.5% by mass or more and 9% by mass or less based on the total amount of the aqueous ink jet ink composition, and the content of the propylene glycol is 8 parts by mass or more and 100 parts by mass or less based on 100 parts by mass of the pigment.

公开(公告)号：US10723127B2

公开(公告)日：2020-07-28

申请号：US16372044

申请日：2019-04-01

Applicant: CANON KABUSHIKI KAISHA

Inventor： Koichi Ishida ,  Shuzo Iwanaga ,  Shintaro Kasai ,  Yoshiyuki Nakagawa ,  Akiko Hammura ,  Takatsugu Moriya ,  Tomohiro Sato ,  Tatsuya Yamada ,  Tomoki Ishiwata ,  Ayako Iwasaki

IPC: B41J2/14 ,  B41J2/05 ,  B41J2/045 ,  B41J2/155

Abstract: A liquid ejection head including first and second recording element substrates adjacent in a direction intersecting a relative movement direction include ejection opening rows that include ejection openings arranged in the intersecting direction. A straight line connecting the ejection openings in end portions on a second recording element substrate side in the first recording element substrate and a straight line connecting the ejection openings in end portions on a first recording element substrate side in the second recording element substrate are inclined towards a middle area side of the first recording element substrate, and arrangement intervals of the ejection openings in an end portion area on the second recording element substrate side of a first ejection opening row is larger than arrangement intervals of the ejection openings in an end portion area on the first recording element substrate side of a second ejection opening row.