公开(公告)号：US20150037074A1

公开(公告)日：2015-02-05

申请号：US14182518

申请日：2014-02-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ho-young LEE ,  Mitsuru Oikawa ,  Jong-hyun Park ,  Sang-hoon Lee ,  Jun-hee Lee

IPC: G03G15/09

CPC classification number: G03G15/0812 ,  G03G15/081 ,  G03G15/0921 ,  G03G2215/0609

Abstract: A developing unit employing a two-component developing agent is shown. The developing unit includes a first regulating member, a second regulating member, and a third regulating member forming first, second, and third regulating gaps respectively with a developing roller. The third regulating member forms a recovery path for recovering excessive developing agent that may not pass through the first and second regulating gaps to an agitating region between the third and second regulating members. A distance between a vertical line passing through an upstream side end portion of the second regulating member based on a rotating direction of the developing roller and a center of the developing roller is greater than a radius of the developing roller, and a downstream end of the third regulating member is located between a regulating pole and a catch pole.

Abstract translation: 示出了采用双组分显影剂的显影单元。 显影单元包括第一调节构件，第二调节构件和第三调节构件，分别与显影辊形成第一，第二和第三调节间隙。 第三调节构件形成用于回收可能不通过第一调节间隙和第二调节间隙的过量显影剂到第三调节构件和第二调节构件之间的搅拌区域的回收路径。 基于显影辊的旋转方向穿过第二调节构件的上游侧端部的垂直线与显影辊的中心之间的距离大于显影辊的半径，并且下游端 第三调节构件位于调节杆和捕捉杆之间。

公开(公告)号：US09207568B2

公开(公告)日：2015-12-08

申请号：US14182518

申请日：2014-02-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ho-young Lee ,  Mitsuru Oikawa ,  Jong-hyun Park ,  Sang-hoon Lee ,  Jun-hee Lee

IPC: G03G15/08 ,  G03G15/09

CPC classification number: G03G15/0812 ,  G03G15/081 ,  G03G15/0921 ,  G03G2215/0609

Abstract: A developing unit employing a two-component developing agent is shown. The developing unit includes a first regulating member, a second regulating member, and a third regulating member forming first, second, and third regulating gaps respectively with a developing roller. The third regulating member forms a recovery path for recovering excessive developing agent that may not pass through the first and second regulating gaps to an agitating region between the third and second regulating members. A distance between a vertical line passing through an upstream side end portion of the second regulating member based on a rotating direction of the developing roller and a center of the developing roller is greater than a radius of the developing roller, and a downstream end of the third regulating member is located between a regulating pole and a catch pole.

Abstract translation: 示出了采用双组分显影剂的显影单元。 显影单元包括第一调节构件，第二调节构件和第三调节构件，分别与显影辊形成第一，第二和第三调节间隙。 第三调节构件形成用于回收可能不通过第一调节间隙和第二调节间隙的过量显影剂到第三调节构件和第二调节构件之间的搅拌区域的回收路径。 基于显影辊的旋转方向穿过第二调节构件的上游侧端部的垂直线与显影辊的中心之间的距离大于显影辊的半径，并且下游端 第三调节构件位于调节杆和捕捉杆之间。

公开(公告)号：US09773300B2

公开(公告)日：2017-09-26

申请号：US14625256

申请日：2015-02-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byung-seok Min ,  Seung-ho Park ,  Jong-hyun Park ,  Il-soon Lim ,  Chang-su Han ,  Hyung-jun Park

IPC: G06T5/00 ,  G06T5/20 ,  G06T5/10

CPC classification number: G06T5/20 ,  G06T5/002 ,  G06T5/007 ,  G06T5/10 ,  G06T2207/10024 ,  G06T2207/20008 ,  G06T2207/20012

Abstract: An image correction method includes: obtaining information regarding at least one of brightness and colors of pixels constituting an input image, the input image comprising a plurality of regions classified according to whether the at least one of the brightness and the colors of the pixels are substantially uniformly distributed in a corresponding region; determining a weight with respect to at least one pixel based on the obtained information; and correcting the input image with respect to the at least one pixel based on the determined weight.

公开(公告)号：US09684265B2

公开(公告)日：2017-06-20

申请号：US15065340

申请日：2016-03-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jong-hyun Park ,  Gun Heo

IPC: G03G15/08

CPC classification number: G03G15/0891 ,  G03G15/0893 ,  G03G2215/0827 ,  G03G2215/0833 ,  G03G2215/0838

Abstract: Provided is a developing device configured to develop an electrostatic latent image formed on an image bearing member by feeding a toner to the electrostatic latent image. The developing device includes a developing frame configured to form an inner space in which the toner and a carrier are to be mixed, a developing roller including an outer periphery to which the developer attaches where the developing roller feeds the toner included in the developer to the image bearing member. The developing device includes an agitator installed in the inner space and configured to mix and deliver the toner and the carrier in a direction parallel to an axial direction of the developing roller, and a plurality of concave portions arranged on a bottom surface of the developing frame.