公开(公告)号：US20070071515A1

公开(公告)日：2007-03-29

申请号：US11493584

申请日：2006-07-27

Applicant: Deuck-woo Jang ,  Ki-won Seok

Inventor： Deuck-woo Jang ,  Ki-won Seok

IPC: G03G15/20

CPC classification number: G03G15/2064

Abstract: A fixing unit includes a heating roller having a heating part, and a pressing roller disposed corresponding to the heating roller. A frame surrounds the heating and pressing rollers and allows a recording medium to pass between the rollers. The frame is mounted with a heat reflective layer on an inner surface thereof. An adiabatic layer may be disposed between the heat reflective layer and the frame. The heat reflective layer may be provided only proximal both sides of the frame when using an adiabatic layer. Accordingly, the initial heating time of the fixing unit, heat loss, and power consumption may be reduced.

Abstract translation: 定影单元包括具有加热部分的加热辊和对应于加热辊设置的加压辊。 框架围绕加热和加压辊并允许记录介质在辊之间通过。 框架在其内表面上安装有热反射层。 绝热层可以设置在热反射层和框架之间。 当使用绝热层时，热反射层可以仅设置在框架的两侧。 因此，可以降低定影单元的初始加热时间，热损失和功率消耗。

公开(公告)号：US20080153022A1

公开(公告)日：2008-06-26

申请号：US11798564

申请日：2007-05-15

Applicant: Seok-hoon Choi ,  Sang-deok Kim ,  Duck-hee Lee ,  Ki-won Seok

Inventor： Seok-hoon Choi ,  Sang-deok Kim ,  Duck-hee Lee ,  Ki-won Seok

IPC: G03G9/00

CPC classification number: G03G9/08755 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09716 ,  G03G9/09725

Abstract: A non-magnetic one-component electrophotographic developing agent is provided having improved properties. The electrophotographic developing agent includes parent toner particles comprising a binder resin, a releasing agent, a colorant, and a charge control agent, and an external additive which is added to a surface of the parent toner particles, wherein the binder resin comprises a high viscosity polyester resin having a weight average molecular weight of about 90,000-140,000 and a gel content of less than about 5% and a low viscosity polyester resin having a weight average molecular weight of about 52,000-65,000 and a gel content of less than about 2%. According to an embodiment of the present invention, an electrophotographic developing agent having improved image gloss and fusing property, while ensuring durability may be prepared by using a blended combination of a high viscosity polyester resin and a low viscosity polyester resin.

Abstract translation: 提供具有改进性能的非磁性单组分电子照相显影剂。 电子照相显影剂包括母体调色剂颗粒，其包含粘合剂树脂，脱模剂，着色剂和电荷控制剂，以及添加到母体调色剂颗粒的表面的外部添加剂，其中粘合剂树脂包含高粘度 重均分子量为约90,000-1.4万，凝胶含量小于约5％的聚酯树脂和重均分子量为约52,000-65,000，凝胶含量小于约2％的低粘度聚酯树脂， 。 根据本发明的一个实施方案，可以通过使用高粘度聚酯树脂和低粘度聚酯树脂的混合组合来制备具有改善的图像光泽和熔融特性同时确保耐久性的电子照相显影剂。

公开(公告)号：US20060133852A1

公开(公告)日：2006-06-22

申请号：US11265077

申请日：2005-11-03

Applicant: Hae-Ree Joo ,  Jung-Wook Kim ,  Ki-Won Seok ,  Kyung-Yol Yon ,  Deuck-Woo Jang ,  Min-Young Cheong

Inventor： Hae-Ree Joo ,  Jung-Wook Kim ,  Ki-Won Seok ,  Kyung-Yol Yon ,  Deuck-Woo Jang ,  Min-Young Cheong

IPC: G03G15/10

CPC classification number: G03G15/104 ,  G03G2215/0658

Abstract: A developer cartridge for a wet-type image forming apparatus comprises a cartridge body in which developer is stored. The cartridge body has a supply hole formed thereon to supply the developer in the cartridge to the image forming apparatus. A filter is disposed in the cartridge body to improve the dispersion of the developer, and to filter sludge of the developer before the developer flows into the supply hole.

Abstract translation: 用于湿式图像形成装置的显影剂盒包括其中存储显影剂的盒体。 盒体具有形成在其上的供应孔，以将暗盒中的显影剂供应到图像形成装置。 过滤器设置在盒体中以改善显影剂的分散，并且在显影剂流入供应孔之前过滤污泥。

公开(公告)号：US20050244736A1

公开(公告)日：2005-11-03

申请号：US11113234

申请日：2005-04-25

Applicant: Kyung-yol Yon ,  Min-young Cheong ,  Ki-won Seok ,  Jung-wook Kim ,  Hae-ree Joo ,  Nam-jeong Lee

Inventor： Kyung-yol Yon ,  Min-young Cheong ,  Ki-won Seok ,  Jung-wook Kim ,  Hae-ree Joo ,  Nam-jeong Lee

IPC: G03G9/12 ,  G03G9/13 ,  G03G9/135

CPC classification number: G03G9/133 ,  G03G9/131

Abstract: A liquid toner composition and a preparation method utilize a colorant, an organosol, a charge control agent, a carrier liquid, a dispersion assistant agent, and a photoreactive catalyst, in which the dispersion assistant agent is a polymer including an unsaturated functional group to cause photopolymerization in a presence of the photoreactive catalyst, and the photoreactive catalyst produces a free radical through an irradiation of light, and initiates the photopolymerization of the dispersion assistant agent. According to embodiments of the present invention, the toner organosol rarely affects the physical properties required of the liquid toner, and an offset error in a fixing operation is removed, resulting in an improved quality of a printed image.

Abstract translation: 液体调色剂组合物和制备方法使用着色剂，有机溶胶，电荷控制剂，载体液，分散助剂和光反应催化剂，其中分散助剂是包含不饱和官能团的聚合物，导致 在光反应催化剂存在下进行光聚合，光反应催化剂通过照射而产生自由基，引发分散助剂的光聚合。 根据本发明的实施方案，调色剂有机溶胶很少影响液体调色剂所需的物理性质，并且消除了定影操作中的偏移误差，从而提高了印刷图像的质量。

公开(公告)号：US07374852B2

公开(公告)日：2008-05-20

申请号：US11113234

申请日：2005-04-25

Applicant: Kyung-yol Yon ,  Min-young Cheong ,  Ki-won Seok ,  Jung-wook Kim ,  Hae-ree Joo ,  Nam-jeong Lee

Inventor： Kyung-yol Yon ,  Min-young Cheong ,  Ki-won Seok ,  Jung-wook Kim ,  Hae-ree Joo ,  Nam-jeong Lee

IPC: G03G9/08

CPC classification number: G03G9/133 ,  G03G9/131

Abstract: A liquid toner composition and a preparation method utilize a colorant, an organosol, a charge control agent, a carrier liquid, a dispersion assistant agent, and a photoreactive catalyst, in which the dispersion assistant agent is a polymer including an unsaturated functional group to cause photopolymerization in a presence of the photoreactive catalyst, and the photoreactive catalyst produces a free radical through an irradiation of light, and initiates the photopolymerization of the dispersion assistant agent. According to embodiments of the present invention, the toner organosol rarely affects the physical properties required of the liquid toner, and an offset error in a fixing operation is removed, resulting in an improved quality of a printed image.

Abstract translation: 液体调色剂组合物和制备方法使用着色剂，有机溶胶，电荷控制剂，载体液，分散助剂和光反应催化剂，其中分散助剂是包含不饱和官能团的聚合物，导致 在光反应催化剂存在下进行光聚合，光反应催化剂通过照射而产生自由基，引发分散助剂的光聚合。 根据本发明的实施方案，调色剂有机溶胶很少影响液体调色剂所需的物理性质，并且消除了定影操作中的偏移误差，从而提高了印刷图像的质量。

公开(公告)号：US20060049837A1

公开(公告)日：2006-03-09

申请号：US11216103

申请日：2005-09-01

Applicant: Jung-wook Kim ,  Ki-won Seok ,  Kyung-yol Yon ,  Deuck-woo Jang ,  Hae-ree Joo ,  Min-young Cheong

Inventor： Jung-wook Kim ,  Ki-won Seok ,  Kyung-yol Yon ,  Deuck-woo Jang ,  Hae-ree Joo ,  Min-young Cheong

IPC: G01R27/26 ,  G01R27/04

CPC classification number: G03G13/10

Abstract: A test apparatus to evaluate the electrical properties of a liquid toner in which a printing quality of the liquid toner may be predicted by evaluating the electrical properties of the liquid toner without performing printing. The test apparatus to evaluate the electrical properties of a liquid toner includes a roller, a conductive flat panel positioned below the roller to move a predetermined distance in contact with the roller, a power supply device applying a voltage to the roller and the conductive flat panel, and a voltage tester provided at the rear of the roller to move together with the roller, testing a voltage of the liquid toner arranged on the conductive flat panel.

Abstract translation: 用于评估液体调色剂的电性能的测试装置，其中可以通过在不执行印刷的情况下评估液体调色剂的电特性来预测液体调色剂的印刷质量。 用于评价液体调色剂的电特性的测试装置包括：滚子，定位在滚子下方的导电平板，以与滚子接触移动预定距离;向滚子和导电平板施加电压的电源装置 以及设置在辊后部的电压测试器，与辊一起移动，测试布置在导电平板上的液体调色剂的电压。

公开(公告)号：US20050153226A1

公开(公告)日：2005-07-14

申请号：US11013200

申请日：2004-12-16

Applicant: Nam-Jeong Lee ,  Kyung-Yol Yon ,  Joong-Hwan Choi ,  Min-Young Cheong ,  Ki-Won Seok

Inventor： Nam-Jeong Lee ,  Kyung-Yol Yon ,  Joong-Hwan Choi ,  Min-Young Cheong ,  Ki-Won Seok

IPC: G03G9/12 ,  G03G9/125 ,  G03G9/13 ,  G03G9/135

CPC classification number: G03G9/13 ,  G03G9/125 ,  G03G9/131 ,  G03G9/132 ,  G03G9/133 ,  G03G9/135 ,  G03G9/1355

Abstract: A liquid toner for electrophotography and a method of preparing the liquid toner are disclosed. The liquid toner includes a carrier liquid, an organosol, a colorant, a charge controlling agent (CCA), and (meth)acrylic (co)polymer soluble in the carrier liquid. The liquid toner has a low solidification rate and good redispersion when left for a long period of time, especially at a high temperature for a long period of time, while maintaining the existing physical properties of a liquid toner, such as image density, at certain levels.

Abstract translation: 公开了用于电子照相的液体调色剂和制备液体调色剂的方法。 液体调色剂包括载体液体，有机溶胶，着色剂，电荷控制剂（CCA）和可溶于载体液体的（甲基）丙烯酸（共）聚合物。 当长时间放置时，特别是在高温下长时间放置时，液体调色剂具有较低的凝固速率和良好的再分散性，同时保持液体调色剂的现有物理性质（如图像密度）在一定程度上 水平。

公开(公告)号：US08158320B2

公开(公告)日：2012-04-17

申请号：US12193923

申请日：2008-08-19

Applicant: In Kim ,  Ki-won Seok ,  Kyung-yol Yon

Inventor： In Kim ,  Ki-won Seok ,  Kyung-yol Yon

IPC: G03G9/08

CPC classification number: G03G9/09392 ,  G03G9/0819 ,  G03G9/09364 ,  G03G9/09371 ,  G03G2215/0617

Abstract: A toner includes a core containing a binder resin, wax, and a colorant, and an external additive layer coating the core, wherein the core is prepared such that it is extruded and extended to have a fiber phase, and is pulverized. The toner has an improved fixing ability to allow an electrostatic image to be fixed at a low temperature while having an excellent durability and an improved storage stability, while exhibiting reduced toner blocking and offset phenomena.

Abstract translation: 调色剂包括含有粘合剂树脂，蜡和着色剂的芯和涂覆芯的外部添加剂层，其中芯被制备成将其挤出并延伸以具有纤维相，并被粉碎。 调色剂具有改善的定影能力，以使静电图像在低温下固定，同时具有优异的耐久性和改进的储存稳定性，同时显示减少的调色剂阻塞和偏移现象。

公开(公告)号：US07871749B2

公开(公告)日：2011-01-18

申请号：US11798564

申请日：2007-05-15

Applicant: Seok-hoon Choi ,  Sang-deok Kim ,  Duck-hee Lee ,  Ki-won Seok

Inventor： Seok-hoon Choi ,  Sang-deok Kim ,  Duck-hee Lee ,  Ki-won Seok

IPC: G03G9/00

CPC classification number: G03G9/08755 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09716 ,  G03G9/09725

Abstract: A non-magnetic one-component electrophotographic developing agent is provided having improved properties. The electrophotographic developing agent includes parent toner particles comprising a binder resin, a releasing agent, a colorant, and a charge control agent, and an external additive which is added to a surface of the parent toner particles, wherein the binder resin comprises a high viscosity polyester resin having a weight average molecular weight of about 90,000-140,000 and a gel content of less than about 5% and a low viscosity polyester resin having a weight average molecular weight of about 52,000-65,000 and a gel content of less than about 2%. According to an embodiment of the present invention, an electrophotographic developing agent having improved image gloss and fusing property, while ensuring durability may be prepared by using a blended combination of a high viscosity polyester resin and a low viscosity polyester resin.

Abstract translation: 提供具有改进性能的非磁性单组分电子照相显影剂。 电子照相显影剂包括母体调色剂颗粒，其包含粘合剂树脂，脱模剂，着色剂和电荷控制剂，以及添加到母体调色剂颗粒的表面的外部添加剂，其中粘合剂树脂包含高粘度 重均分子量为约90,000-1.4万，凝胶含量小于约5％的聚酯树脂和重均分子量为约52,000-65,000，凝胶含量小于约2％的低粘度聚酯树脂， 。 根据本发明的一个实施方案，可以通过使用高粘度聚酯树脂和低粘度聚酯树脂的混合组合来制备具有改善的图像光泽和熔融特性同时确保耐久性的电子照相显影剂。

公开(公告)号：US20090155701A1

公开(公告)日：2009-06-18

申请号：US12193923

申请日：2008-08-19

Applicant: In KIM ,  Ki-won Seok ,  Kyung-yol Yon

Inventor： In KIM ,  Ki-won Seok ,  Kyung-yol Yon

IPC: G03G13/14 ,  G03G9/08

CPC classification number: G03G9/09392 ,  G03G9/0819 ,  G03G9/09364 ,  G03G9/09371 ,  G03G2215/0617

Abstract: A toner includes a core containing a binder resin, wax, and a colorant, and an external additive layer coating the core, wherein the core is prepared such that it is extruded and extended to have a fiber phase, and is pulverized. The toner has an improved fixing ability to allow an electrostatic image to be fixed at a low temperature while having an excellent durability and an improved storage stability, while exhibiting reduced toner blocking and offset phenomena.

Abstract translation: 调色剂包括含有粘合剂树脂，蜡和着色剂的芯和涂覆芯的外部添加剂层，其中芯被制备成将其挤出并延伸以具有纤维相，并被粉碎。 调色剂具有改善的定影能力，以使静电图像在低温下固定，同时具有优异的耐久性和改进的储存稳定性，同时显示减少的调色剂阻塞和偏移现象。