公开(公告)号：US11906925B2

公开(公告)日：2024-02-20

申请号：US17913381

申请日：2020-04-08

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

Inventor： Bin Huang ,  Minedys Macias Guzman ,  Daniel C. Tanchangco

IPC: G03G21/00

CPC classification number: G03G21/0058 ,  G03G21/0088

Abstract: Herein is described a liquid electrophotographic a printing apparatus comprising: a photoconductor; a liquid electrophotographic ink developer unit for applying liquid electrophotographic ink to the photoconductor; a cleaner roller contactable with the photoconductor, the cleaner roller comprising an open-celled foam material having thereon a coating comprising abrasive particles and a binder. Also described herein is a cleaner roller for cleaning a liquid electrophotographic printing apparatus' photoconductor and a method of operating a liquid electrophotographic printing apparatus using a cleaner roller described herein.

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：US20230147465A1

公开(公告)日：2023-05-11

申请号：US17913381

申请日：2020-04-08

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

Inventor： Bin Huang ,  Minedys Macias Guzman ,  Daniel C. Tanchangco

IPC: G03G21/00

CPC classification number: G03G21/0058 ,  G03G21/0088

Abstract: Herein is described a liquid electrophotographic a printing apparatus comprising: a photoconductor; a liquid electrophotographic ink developer unit for applying liquid electrophotographic ink to the photoconductor; a cleaner roller contactable with the photoconductor, the cleaner roller comprising an open-celled foam material having thereon a coating comprising abrasive particles and a binder. Also described herein is a cleaner roller for cleaning a liquid electrophotographic printing apparatus’ photoconductor and a method of operating a liquid electrophotographic printing apparatus using a cleaner roller described herein.