公开(公告)号：WO2021141815A1

公开(公告)日：2021-07-15

申请号：PCT/US2020/067504

申请日：2020-12-30

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

Inventor： PARK, Heungsup ,  KIM, Juntae ,  JO, Haeseog ,  PARK, Choongkyu ,  HAN, Younghoon ,  LEE, Seungjun

IPC: G03G15/20 ,  G03G8/00 ,  B41F23/08

Abstract: The image forming apparatus includes an image forming part to form a color toner image on a print medium and to form a clear toner image on the print medium; and a photo finishing part to receive the print medium from the image forming part at a downstream side of the image forming part and to form an oil coating layer on an image plane of the print medium.

公开(公告)号：WO2021141800A1

公开(公告)日：2021-07-15

申请号：PCT/US2020/067302

申请日：2020-12-29

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

Inventor： PARK, Heungsup ,  KIM, Juntae ,  JO, Haeseog

IPC: B41F23/08

Abstract: An image forming apparatus includes an image forming part to form an image on a medium and a photo-finishing part to thermally transfer a coating film covering the image onto the medium.

公开(公告)号：WO2020076341A1

公开(公告)日：2020-04-16

申请号：PCT/US2018/055640

申请日：2018-10-12

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

Inventor： PARK, Heungsup ,  KIM, Juntae ,  BUCHHOLTZ, Brett ,  MORGAN, Lonny ,  LEE, Dongwoo ,  BRINKLY, Richard Lee ,  LO, Kevin ,  LEE, Youngsu ,  LEE, Kihyuk

IPC: B41F23/04 ,  B41L23/20 ,  B41M7/00

Abstract: A heating roller for a wet ink-based image forming apparatus includes a roller having a contact surface to contact a print medium having wet ink deposited thereon by wet ink-based image forming apparatus. The heating roller conductively heats the print medium and dries and flattens the print medium. The heating roller includes a heating element embedded along the roller. The heating element rotates with the roller as the roller rotates. The heating element generates and conducts heat to the contact surface so as to conductively heat the print medium through the contact surface when the contact surface contacts the print medium.

公开(公告)号：WO2019199434A1

公开(公告)日：2019-10-17

申请号：PCT/US2019/023865

申请日：2019-03-25

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

Inventor： KIM, Eogkyu ,  PARK, Heungsup

IPC: G03G15/08 ,  B42D25/36 ,  B41M3/14

Abstract: A printer includes an image forming unit to form a toner image on an image receptor by using a toner containing fluorescent additives for generating light in a predefined wavelength band in response to light in an invisible wavelength band, transfer the toner image to a print medium, and fix the toner image on the print medium, a photodetector including a light emitting unit configured to irradiate light in an invisible wavelength band to the toner image accommodated in one of the image receptor and the print medium, and a light receiving unit to detect reflected light from the toner image, and a controller to control a printing operation of the image forming unit, based on a detection signal from the light receiving unit.

公开(公告)号：WO2021168172A1

公开(公告)日：2021-08-26

申请号：PCT/US2021/018662

申请日：2021-02-19

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

Inventor： PARK, Heungsup ,  ELLIS, Daniel Scott ,  KIM, Sungho ,  LEE, HongKwon ,  KIM, DoHyung

IPC: G02F1/167 ,  B41M5/00

Abstract: Electronic ink paper includes: an image display area comprising a support layer, a conductive layer on the support layer, an ink layer on the conductive layer and to display an image by electrophoresis of pigment particles dispersed in an electrophoretic liquid, and a transparent surface layer to cover the ink layer; and a border to surround the image display area and including at least one edge having a tapered shape that decreases in thickness toward the outside of the border.

公开(公告)号：WO2019222190A1

公开(公告)日：2019-11-21

申请号：PCT/US2019/032186

申请日：2019-05-14

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

Inventor： PARK, Heungsup ,  JO, Haeseog ,  KIM, Taehong ,  JEONG, Sooncheol

IPC: B41F23/00 ,  B41L21/06

Abstract: A paddle device for a finisher device to align paper discharged from an imaging apparatus comprises a paddle drive shaft to be rotated by a paddle motor, a rotation body having an installation hole, through which the paddle drive shaft is fitted into the rotation body, and a paddle blade extending from the rotation body and having an end portion that is to contact the paper while the paddle drive shaft is rotated by the paddle drive shaft, to align the paper.