公开(公告)号：US20250060697A1

公开(公告)日：2025-02-20

申请号：US18591506

申请日：2024-02-29

Applicant: FUJIFILM Business Innovation Corp.

Inventor： Ryosuke HASEGAWA

IPC: G03G21/10 ,  G03G15/00 ,  G03G15/10

Abstract: An image forming apparatus includes: a waste toner collection path through which waste toner is collected; a motor that drives a conveyance member provided in the waste toner collection path; and a processor that acquires a phase-to-phase voltage which is at least one in-phase voltage of the motor, and detects a sign of toner clogging in the waste toner collection path, based on a variation in the phase-to-phase voltage.

公开(公告)号：US12204260B2

公开(公告)日：2025-01-21

申请号：US18249088

申请日：2020-10-16

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

Inventor： Jeffrey Zampell ,  Daniel C. Tanchangco ,  Jingzhi Lu

IPC: G03G15/10 ,  G03G15/08 ,  G03G15/11

Abstract: A developer roller having a first section that includes a first exterior surface, wherein the first exterior surface includes an electrically-conductive material; and a second section includes a second exterior surface, wherein the second exterior surface is non-electrically-conductive. The second section is axially aligned with the first section and provided at a first longitudinal end of the first section.

公开(公告)号：US12197143B2

公开(公告)日：2025-01-14

申请号：US18378895

申请日：2023-10-11

Applicant: CANON KABUSHIKI KAISHA

Inventor： Ryo Suzuki ,  Nobuaki Suzuki

IPC: G03G15/08 ,  G03G15/00 ,  G03G15/01 ,  G03G15/10

Abstract: An image forming apparatus includes an image forming unit configured to form an image with toner, a halftone processor configured to convert image data by performing halftone processing, a first determining unit configured to determine a first toner consumption amount for each page based on the image data, a second determining unit configured to determine a second toner consumption amount for each page based on the converted image data, a print percentage calculator configured to calculate a print percentage for one page based on the first toner consumption amount, a notifying unit configured to notify a remaining amount of the toner of the image forming unit based on the first toner consumption amount of a page of which the print percentage is larger than a threshold and the second toner consumption amount of a page of which the print percentage is equal to or smaller than the threshold.

公开(公告)号：US12174561B2

公开(公告)日：2024-12-24

申请号：US17907118

申请日：2020-03-26

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

Inventor： Lavi Cohen ,  Asaf Shoshani ,  Yulia Haddad

IPC: G03G15/10 ,  G03G15/00 ,  G03G21/20

Abstract: A printing drum for a liquid electrophotographic printing system which comprises a photosensitive surface and a heating device mounted to the printing drum. The heating device heats the photosensitive surface of the printing drum to a predetermined temperature.

公开(公告)号：US20240408617A1

公开(公告)日：2024-12-12

申请号：US18702953

申请日：2021-10-22

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

Inventor： Doron SCHLUMM ,  Mark SANDLER ,  Dror KELLA ,  Shahaf BARON

IPC: B03C5/02 ,  B08B1/16 ,  B08B1/20 ,  G03G15/10 ,  G03G21/00

Abstract: In one example, a system to clean imaging oil from a cleaning station in an LEP printer includes an electrode plate, an electrode belt rotatable in a loop past the electrode plate, a channel to carry unfiltered imaging oil from the cleaning station between the electrode plate and the electrode belt, and a voltage source operatively connected to the electrodes to establish an electric field that causes waste in the imaging oil between the electrodes to attach to the belt.

公开(公告)号：US12038698B2

公开(公告)日：2024-07-16

申请号：US17911213

申请日：2020-04-08

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

Inventor： Jeffrey Zampell ,  John W. Godden

IPC: G03G15/10 ,  G03G15/08

CPC classification number: G03G15/0817 ,  G03G15/0898 ,  G03G15/104 ,  G03G2221/1657

Abstract: In one example in accordance with the present disclosure, a developer unit seal is described. The developer unit seal includes an endcap. The endcap has an opening to receive a dynamic seal for a roller, an inlet to receive print fluid, and a channel embedded in a surface of the endcap. The channel connects the inlet with the opening to direct print fluid to the opening. The developer unit seal also includes a sealing member to cover the channel.

公开(公告)号：US12023611B2

公开(公告)日：2024-07-02

申请号：US17254898

申请日：2018-11-29

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

Inventor： Doron Schlumm ,  Igor Chertov ,  Sergei Trifonov

IPC: B01D35/06 ,  G03G15/10

CPC classification number: B01D35/06 ,  G03G15/104

Abstract: An filtration apparatus is disclosed. The filtration apparatus is to remove non-liquid contaminant from liquid carrier. The filtration apparatus may include an electrode having a first surface, wherein the electrode is to generate an electric field towards liquid carrier containing non-liquid contaminant. The filtration apparatus may include a reservoir having a wall defined at least partially by the first surface, the reservoir to house a volume of liquid carrier. The filtration apparatus may include a plurality of plates, each plate having an accumulation surface, wherein a portion of each plate is within the reservoir, so as to be submerged in the volume of liquid carrier. An electric field formed between the first surface and the accumulation surface of each plate of the plurality of plates may act on the liquid carrier, to thereby cause non-liquid contaminant to adhere to an accumulation surface of a plate of the plurality of plates. A method and a print apparatus are also disclosed.

公开(公告)号：US11912055B2

公开(公告)日：2024-02-27

申请号：US17658052

申请日：2022-04-05

Applicant: Xerox Corporation

Inventor： Guo-Yau Lin ,  Eliud Robles Flores ,  Varun Sambhy ,  David R. Stookey

IPC: B41M5/50 ,  B41M5/00 ,  G03G15/10

CPC classification number: B41M5/50 ,  B41M5/0023 ,  G03G15/10

Abstract: A printed structure, and systems and methods for creating the printed structure are disclosed. The printed structure includes a substrate, a first printed image layer, and a second printed image layer printed at least partially over the first printed image layer. The first printed image layer includes a first variable image printed using a first electrophoretic ink and the second printed image layer includes a second variable image printed using a second electrophoretic ink. The first variable image and the second variable image are configured to selectively change their display states upon application of an electric field.

公开(公告)号：US20240053690A1

公开(公告)日：2024-02-15

申请号：US17766421

申请日：2020-06-26

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

Inventor： Israel Patla ,  Yaron Grinwald ,  Faina Kogan ,  Itay Eyal

IPC: G03G5/087 ,  C09D11/52 ,  C09D11/037 ,  C09D11/107 ,  B41M5/52 ,  G03G15/10

CPC classification number: G03G5/087 ,  C09D11/52 ,  C09D11/037 ,  C09D11/107 ,  B41M5/52 ,  G03G15/10

Abstract: Described herein is a method of producing a perovskite material on a substrate by LEP printing comprising: printing a composition comprising a salt AX and a resin in a carrier liquid; printing a composition comprising a salt selected from BX2 and in BX4 and a resin in a carrier liquid; and heat treating the printed compositions; or printing a composition comprising a material with a perovskite structure and a resin in a carrier liquid; wherein the resin comprises a copolymer of an alkylene monomer and a monomer having acidic side groups; and/or a copolymer of an alkylene monomer and an ethylenically unsaturated monomer comprising an epoxide; and/or a copolymer of an alkylene monomer, an ethylenically unsaturated monomer comprising an epoxide, and a monomer selected from a monomer having acidic side groups, a monomer having ester side groups and a mixture thereof. Also described is an ink set and a printed substrate.

公开(公告)号：US20240036490A1

公开(公告)日：2024-02-01

申请号：US18039908

申请日：2020-12-15

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

Inventor： Doron GUROVICH ,  Vladislav KAPLOUN ,  Albert TEISHEV ,  Emad MASOUD

IPC: G03G9/135 ,  G03G9/08 ,  G03G15/10

CPC classification number: G03G9/1355 ,  G03G9/0804 ,  G03G15/10

Abstract: Described herein is a method of producing a liquid electrophotographic ink composition comprising combining a pigment with a charge director in a carrier liquid to produce a pigment dispersion; and combining a thermoplastic resin with the pigment dispersion to produce a liquid electrophotographic ink composition; wherein the charge director comprises a metal salt of a sulfonic acid. Also described herein is a method of printing the liquid electrophotographic ink composition and a printing set comprising the liquid electrophotographic ink composition.