公开(公告)号：US10469713B2

公开(公告)日：2019-11-05

申请号：US15410056

申请日：2017-01-19

Applicant: HP PRINTING KOREA CO., LTD.

Inventor： Kyeong-man Kim ,  Hyun-soo Oh ,  Seong-wook Han

IPC: H04N1/60 ,  H04N1/04

Abstract: An image forming apparatus and method thereof are provided. The image forming apparatus includes: a scanner configured to generate a scan image by scanning a document, a processor configured to generate color information of a medium representing content of the document using a predetermined area of the scan image, and to gamma-correct color of an entire area of the scan image based on the color information, and a printer configured to print the gamma-corrected scan image.

公开(公告)号：US10539908B2

公开(公告)日：2020-01-21

申请号：US15625602

申请日：2017-06-16

Applicant: HP PRINTING KOREA CO., LTD.

Inventor： Kyeong-man Kim ,  Hyun-soo Oh ,  Seong-wook Han ,  Yoon-tae Lee

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

Abstract: An image forming apparatus is provided. The image forming apparatus includes a sensor configured to sense a toner concentration, a processor configured to determine at least one of a coring level and a total area coverage (TAC) level according to the detected toner concentration, and an image former configured to print the rendered print data.

公开(公告)号：US10554861B2

公开(公告)日：2020-02-04

申请号：US15058260

申请日：2016-03-02

Applicant: HP PRINTING KOREA CO., LTD.

Inventor： Joo-young Jung ,  Hyung-jong Kang ,  Kyeong-man Kim ,  Jeong-hun Kim ,  Nam-ju Shin ,  Ho-jin Ahn ,  Hyun-soo Oh ,  Woo-jun Chung ,  Jung-mo Hong ,  In-ho Park

IPC: H04N1/60 ,  H04N1/00

Abstract: Provided is a color compensation method in an image forming apparatus. The color compensation method may include imaging a first color chart by a first image forming apparatus, scanning the imaged first color chart, comparing information regarding the scanned first color chart and information regarding a reference color chart to determine an international color consortium (ICC) profile of the first image forming apparatus, and performing color compensation on the first image forming apparatus based on the determined ICC profile.