公开(公告)号：US20230384714A1

公开(公告)日：2023-11-30

申请号：US17824739

申请日：2022-05-25

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

Inventor： Peter Nedelin ,  Mark Sandler

IPC: G03G15/11

CPC classification number: G03G15/11

Abstract: In one example, an exhaust hood includes an enclosure having a perimeter defining an exhaust area and a fluid flow path. The fluid flow path includes a perimeter intake slot through which air is sucked into the flow path during an exhaust operation and a flow channel in fluid communication with the perimeter intake slot and configured to carry fluid away from the intake slot and out of the enclosure.

公开(公告)号：US20190155193A1

公开(公告)日：2019-05-23

申请号：US16254226

申请日：2019-01-22

Applicant: HP Indigo, B.V.

Inventor： Shmuel BORENSTAIN ,  Asaf Anufa

IPC: G03G15/16 ,  G03G15/11 ,  G03G21/00

CPC classification number: G03G15/1605 ,  G03G15/11 ,  G03G21/0088

Abstract: In certain examples, a liquid electrophotographic printer has a compressive element. The compressive element removes a portion of carrier liquid from an inked image on an imaging element. The compressive element is selectively engageable and a controller disengages the compressive element for a first layer of liquid toner so as to retain carrier liquid in the first layer, and engages the compressive element for a subsequent layer of liquid toner so as to remove a portion of carrier liquid from the subsequent layer.

公开(公告)号：US20190033755A1

公开(公告)日：2019-01-31

申请号：US16073043

申请日：2016-04-28

Applicant: HP INDIGO B.V.

Inventor： Andre GARCIA ,  Harsh Pranav DESAI ,  Avinoam HALPERN ,  Evgeny KOROL ,  Meir GRINSTEIN ,  Melissa Marie LOVELL

IPC: G03G15/11 ,  G03G15/06

CPC classification number: G03G15/11 ,  G03G15/065 ,  G03G15/10

Abstract: In one example, a method for drying a developer unit of a liquid electrophotographic printer. After printing is complete, development voltage biases are applied to the developer unit while a liquid marking agent flows to the developer unit. The liquid marking agent flow to the developer unit is stopped. Drying voltage biases, lower than the development voltage biases, are applied to the developer unit. Idle voltage biases are applied to the developer unit when dry.

公开(公告)号：US20180329336A1

公开(公告)日：2018-11-15

申请号：US15749022

申请日：2016-01-08

Applicant: HP Indigo B.V.

Inventor： Blair A Butler ,  Andre Garcia ,  James Kiang ,  David Sabo

IPC: G03G15/11

CPC classification number: G03G15/11

Abstract: A transmission for a developer unit that includes a developer roller to apply LEP ink to a photoconductor, a cleaner roller to clean the developer roller, and a squeegee roller to squeegee ink on the developer roller. In one example, the transmission includes a mechanical drive train to, with the cleaner roller, simultaneously drive the developer roller at a first surface speed and the squeegee roller at a second surface speed slower than the first surface speed.

公开(公告)号：US20180275566A1

公开(公告)日：2018-09-27

申请号：US15713922

申请日：2017-09-25

Applicant: FUJI XEROX Co., Ltd.

Inventor： Masaaki ABE ,  Satoshi TATSUURA ,  Nobuhiro KATSUTA ,  Hiroaki MORIYAMA

IPC: G03G15/11 ,  G03G13/11 ,  G03G15/20

CPC classification number: G03G15/11 ,  G03G13/11 ,  G03G15/2053 ,  G03G15/235 ,  G03G15/237 ,  G03G15/652 ,  G03G2215/1652

Abstract: An oil removing device includes a first heating member that at an outer surface thereof contacts a non-image surface of a recording medium which is transported, and that heats the recording medium, a toner image that is formed by using liquid developer that contains volatile oil and toner being transferred to the recording medium; and a second heating member that is disposed on a downstream side of the first heating member in a transport direction, the second heating member contacting at an outer surface thereof the non-image surface of the recording medium and heating the recording medium. In the oil removing device, a non-contact region where the non-image surface of the recording medium does not contact the first heating member and the second heating member is provided between the first heating member and the second heating member.

公开(公告)号：US20180224772A1

公开(公告)日：2018-08-09

申请号：US15749933

申请日：2015-10-30

Applicant: HP INDIGO B.V.

Inventor： Nathan A. Levy ,  Shunit Petachia Halely

IPC: G03G21/00

CPC classification number: G03G15/11 ,  G03G21/0029 ,  G03G2215/0805

Abstract: A wiper holder comprises a body part and a first slot formed in the body part, the first slot for holding a first wiper element, wherein the first slot is bent to form-lock the first wiper element, and a second slot formed in the body part adjacent to the first slot, the second slot for holding a second wiper element, wherein the second slot is bent to form-lock the second wiper element.

公开(公告)号：US20180017898A1

公开(公告)日：2018-01-18

申请号：US15545953

申请日：2015-04-13

Applicant: HP INDIGO B.V.

Inventor： Asaf Anufa ,  Ilan Romem

IPC: G03G15/11 ,  G03G15/01 ,  G03G5/00 ,  G03G15/16 ,  G03G5/14

CPC classification number: G03G15/11 ,  G03G5/005 ,  G03G5/142 ,  G03G15/0157 ,  G03G15/161 ,  G03G2215/1671 ,  G03G2215/1695

Abstract: An example apparatus is provided in accordance with the present disclosure, which may be used for example for liquid electrophotographic printing. The example apparatus comprises a photo imaging plate to receive a liquid colorant image, the liquid colorant comprising a carrier fluid, and to transfer the image to a support, and a rotatable roller to remove carrier fluid from the photo imaging plate and increase the density of solids in the liquid colorant on at least a region of the photo imaging plate, prior to the liquid image being transferred.

公开(公告)号：US09841696B2

公开(公告)日：2017-12-12

申请号：US15216319

申请日：2016-07-21

Applicant: FUJI XEROX CO., LTD.

Inventor： Taijyu Gan ,  Toshihiko Suzuki

IPC: G03G15/10 ,  G03G13/10 ,  G03G15/11 ,  G03G13/11

CPC classification number: G03G13/10 ,  G03G13/11 ,  G03G15/10 ,  G03G15/11 ,  G03G21/0088

Abstract: Provided is an image forming apparatus including a first holding member that is rotated and holds a liquid developer including a volatile carrier liquid, a first cleaning member that is able to come into contact with or separated from the first holding member and cleans a surface of the first holding member by being in contact with the first holding member, a supplying device that supplies a volatile washing liquid to the first holding member at an upstream side of the first cleaning member in a rotation direction of the first holding member, and a switching mechanism that switches a first state in which the first cleaning member is in contact with the first holding member that is rotated to a second state in which the first cleaning member is separated from the first holding member that is rotated to apply the washing liquid to the first holding member.

公开(公告)号：US20170255151A1

公开(公告)日：2017-09-07

申请号：US15213925

申请日：2016-07-19

Applicant: FUJI XEROX CO., LTD.

Inventor： Shiro SUZUKI

IPC: G03G15/10

CPC classification number: G03G15/556 ,  G03G15/104 ,  G03G15/11

Abstract: Provided is an image forming apparatus including a storage portion that stores liquid developer where toner is dispersed in a carrier liquid, an image forming portion that forms an image on a recording medium with the liquid developer supplied from the storage portion, a recovery path that recovers the liquid developer from the image forming portion and returns the liquid developer to the storage portion, a dispersing mechanism that is provided in the recovery path and disperses recovered liquid developer by causing the recovered liquid developer to pass through a net member, and a replenishing unit that replenishes the liquid developer or the carrier liquid on the net member at least while the image forming portion does not form an image.

公开(公告)号：US09606475B2

公开(公告)日：2017-03-28

申请号：US14916342

申请日：2014-09-04

Applicant: Xeikon IP B.V.

Inventor： Werner Jozef Johan Op de Beeck ,  Wim Libaers ,  Lode Erik Dries Deprez

IPC: G03G15/10 ,  G03G15/11 ,  G03G21/00

CPC classification number: G03G15/11 ,  G03G21/0088

Abstract: The printing method includes the steps of (1) Transferring after charging a charged liquid developer dispersion from a surface of the first member optionally via the at least one further member to a substrate, wherein excess liquid developer dispersion remains present on the first member after the transfer; (2) Treating the excess liquid developer dispersion so as to facilitate its removal from the first member (3) removing, at least substantially, the treated excess liquid developer dispersion from the surface of the first member using a removal device, and (4) upon interrupting or terminating the printing, removing material adhered to the removal device.