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公开(公告)号：US20170219948A1
公开(公告)日：2017-08-03
申请号：US15502379
申请日：2014-09-23
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Doris Pik-Yiu Chun , Dekel Green
Abstract: Provided in one example herein is a liquid electrophotographic ink composition, comprising: a carrier fluid comprising a polymer; ink particles comprising pigment particles and a polymeric resin, the pigment particles comprising titanium dioxide Sand being distributed in the polymeric resin; and a charge director, wherein the ink particles have an average diameter of between about 10 μm and 50 μm; and the pigment particles are between about 10 wt % and about 50 wt % of the ink particles. Methods of making and using the ink composition are also provided.
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公开(公告)号：US10042279B2
公开(公告)日：2018-08-07
申请号：US15502379
申请日：2014-09-23
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Doris Pik-Yiu Chun , Dekel Green
Abstract: Provided in one example herein is a liquid electrophotographic ink composition, comprising: a carrier fluid comprising a polymer; ink particles comprising pigment particles and a polymeric resin, the pigment particles comprising titanium dioxide and being distributed in the polymeric resin; and a charge director, wherein the ink particles have an average diameter of between about 10 μm and 50 μm; and the pigment particles are between about 10 wt % and about 50 wt % of the ink particles. Methods of making and using the ink composition are also provided.
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公开(公告)号：US20220355602A1
公开(公告)日：2022-11-10
申请号：US17764611
申请日：2019-10-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Omer Gila , Napoleon J. Leoni , Rajesh Kelekar , Dekel Green
Abstract: An image formation device includes a mixer, a fluid ejection device, and a liquid removal element. The mixer is to receive a first ink mixture of ink particles within a first non-aqueous liquid carrier in a first concentration, to receive a second non-aqueous liquid carrier, and to form a second ink mixture of the ink particles within both the first and second liquid carriers in a second concentration less than the first concentration. The fluid ejection device is to receive the second ink mixture and to deposit droplets of the second ink mixture onto a substrate to at least partially form an image via the ink particles. The liquid removal element is to remove the respective liquid carriers from the substrate to provide at least a portion of the second liquid carrier at the mixer to form part of the second ink mixture.
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