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1. 发明授权

US06413318B1 Sheet coating apparatus 有权
公开(公告)号：US06413318B1
公开(公告)日：2002-07-02
申请号：US09725943
申请日：2000-11-30
申请人： Yong-baek Yoo , Kyung-yol Yon
发明人： Yong-baek Yoo , Kyung-yol Yon
IPC分类号： B05C108
摘要： A sheet coating apparatus including a storage tank in which a coating liquid having charged coating particles dispersed therein is contained, a development roller rotatably installed to be immersed in the coating liquid, a voltage source for applying a voltage to the development roller, a coating roller rotatably installed in a state in which it is partially immersed in the coating liquid while maintaining a predetermined development gap relative to the development roller, and a compression roller for pressing a sheet passing between the compression roller and the coating roller toward the coating roller while securely rotating with respect to the coating roller. The coating particles adhere to the surface of the coating roller at the development gap due to an electric force to then be coated on the sheet passing between the coating roller and the compression roller. The sheet coating apparatus can prevent excess coating liquid from being coated on a sheet by regulating the amount of the coating liquid coated on the sheet, thereby attaining uniform coating.

2. 发明授权

US07447455B2 Color image forming apparatus and mono color printing method thereof 有权
标题翻译：彩色图像形成装置及其单色打印方法
公开(公告)号：US07447455B2
公开(公告)日：2008-11-04
申请号：US11390171
申请日：2006-03-28
申请人： Myung-ho Kyung , Yong-baek Yoo
发明人： Myung-ho Kyung , Yong-baek Yoo
IPC分类号： G03G15/16 , G03G21/00
CPC分类号： G03G15/0194 , G03G2215/0119 , G03G2221/0089
摘要： Disclosed are a color image forming apparatus for mono color printing and a method thereof. The apparatus includes photoconductors, a charger, a development unit for forming a developer image on each of the photoconductors, a transfer unit including an image transfer member for receiving the developer image from each of the photoconductors and a transfer voltage supply member for supplying a transfer bias voltage to the image transfer member, a first cleaning unit for cleaning the photoconductors, and a control unit for controlling the photoconductors, charger, development unit and transfer unit in a mono color printing mode to form a developer image on an image area of a selected photoconductor, to transfer the formed developer image to a non-image area of the image transfer member, and to divide the transferred developer image into portions and reverse-transfer the divided portions from the image transfer member to remaining photoconductors.
摘要翻译：公开了一种用于单色打印的彩色图像形成装置及其方法。该装置包括光电导体，充电器，用于在每个感光体上形成显影剂图像的显影单元，转印单元，包括用于从每个感光体接收显影剂图像的图像转印部件和用于提供转印的转印电压供给部件用于清洁感光体的第一清洁单元和用于以单色打印模式控制感光体，充电器，显影单元和转印单元的控制单元，以在图像传送构件的图像区域上形成显影剂图像将形成的显影剂图像转印到图像转印部件的非图像区域，并将转印的显影剂图像分割成多个部分，并将分割部分从图像转印部件反向转移到剩余的光电导体。

3. 发明授权

US07260343B2 Gear assembly used with an image forming apparatus, an optical photoconductive (OPC) unit having the same, and a method of driving the gear assembly 有权
标题翻译：与图像形成装置一起使用的齿轮组件，具有该装置的光学感光（OPC）单元以及驱动齿轮组件的方法
公开(公告)号：US07260343B2
公开(公告)日：2007-08-21
申请号：US10872494
申请日：2004-06-22
申请人： Chung-guk Baek , Yong-baek Yoo
发明人： Chung-guk Baek , Yong-baek Yoo
IPC分类号： G03G15/00
CPC分类号： G03G15/757
摘要： An organic photoconductive (OPC) unit of an image forming apparatus and a gear assembly arranged in the OPC unit. The gear assembly includes a drum gear formed on a flange of an OPC drum, a cleaning gear driven by a receiving power from the drum gear, and at least one idle gear interposed between the drum gear and the cleaning gear and transmitting the rotational force of the drum gear to the cleaning gear. Therefore, it is possible to drive a plurality of additional rollers with a single power source, and easy to connect the OPC drum with the gears when the OPC drum is fitted into the OPC unit. In addition, because the gear assembly is constructed in a compact form, it is possible to reduce the volume of the OPC unit.
摘要翻译：图像形成装置的有机光电导（OPC）单元和布置在OPC单元中的齿轮组件。齿轮组件包括形成在OPC鼓的凸缘上的鼓齿轮，由来自鼓齿轮的接收功率驱动的清洁齿轮，以及置于鼓齿轮和清洁齿轮之间的至少一个惰轮，并传递旋转力鼓齿轮到清洁齿轮。因此，可以使用单个电源驱动多个附加辊，并且当OPC鼓装配到OPC单元中时，可以容易地将OPC鼓与齿轮连接。此外，由于齿轮组件构造成紧凑的形式，因此可以减小OPC单元的体积。

4. 发明授权

US6101342A Apparatus and method for measuring developer contamination of printer 有权
标题翻译：测量打印机显影剂污染的仪器和方法
公开(公告)号：US6101342A
公开(公告)日：2000-08-08
申请号：US427725
申请日：1999-10-27
申请人： Yoon-seop Eom , Won-hyung Lee , Yong-baek Yoo
发明人： Yoon-seop Eom , Won-hyung Lee , Yong-baek Yoo
IPC分类号： G01N21/47 , G01N21/59 , G03G15/00 , G03G15/01 , G03G15/10 , G03G15/11 , G03G21/00 , G03G13/10
CPC分类号： G03G15/0121 , G01N21/59 , G03G15/104
摘要： A developer contamination measuring apparatus of a printer includes a first pipe portion having a first gap and a second pipe portion having a second gap, a light emitting unit radiating light to the first pipe portion and the second pipe portion, a light detecting unit detecting light reflected or transmitted from the first pipe portion and the second pipe portion to output first and second light receiving signals, respectively, and a developer contamination measuring unit controlling the light emitting unit, and calculating the degree of a contamination due to mixing of other developing materials with the developer from the first and the second light receiving signals. Thus, the degree of contamination of a developer mixed with other developing materials can be precisely calculated, and the developer can be replaced, when the calculated amount of contamination exceeds a predetermined allowable contamination level, to thereby prevent deterioration of print quality.
摘要翻译：打印机的显影剂污染物测量装置包括具有第一间隙的第一管部分和具有第二间隙的第二管部分，向第一管部分和第二管部分照射光的发光单元，检测光分别从第一管部分和第二管部分反射或透射以输出第一和第二光接收信号，以及控制发光单元的显影剂污染测量单元，以及计算由于其他显影材料的混合引起的污染程度来自第一和第二光接收信号的显影剂。因此，可以精确地计算出与其他显影材料混合的显影剂的污染程度，并且当计算出的污染物量超过预定的允许污染水平时可以更换显影剂，从而防止打印质量的劣化。

5. 发明授权

US5970289A Apparatus for eliminating excess ions of a developer for liquid electrophotographic printer 有权
标题翻译：用于消除液体电子照相打印机的显影剂的过量离子的装置
公开(公告)号：US5970289A
公开(公告)日：1999-10-19
申请号：US255717
申请日：1999-02-23
申请人： Yong-baek Yoo
发明人： Yong-baek Yoo
IPC分类号： G03G15/10
CPC分类号： G03G15/104
摘要： An apparatus for eliminating excess ions in a developer used for a liquid electrophotographic printer, including a photoreceptor medium, a laser scan unit for forming an electrostatic latent image by emitting a laser beam to the photoreceptor medium, and a developing unit for developing an electrostatic latent image area of the photoreceptor medium using a developer which is a mixture of a toner and a liquid carrier. The apparatus includes: a settling unit provided at one side of the developing unit for settling the toner of the developer supplied from the developing unit in a short time using an electrical force; a developer input/output controller installed between the developing unit and the settling unit for selectively controlling the input/output of the developer; and an excess ion eliminating unit for eliminating excess ions included in the developer in an upper portion of the settling unit. Thus, in the apparatus for eliminating excess ions in a developer, the developer flows sporadically in the settling tank from the developing unit during operation of a printer. The toner in the developer flowed in is settled in a short time by applying a bias voltage to upper and lower electrode plates of the settling unit. Then, the excess ions included in the developer disposed in the upper portion of the settling tank where the settlement of toner is sufficiently made are eliminated. Thus, in a liquid electrophotographic printer adopting the above apparatus according to the present invention, a decrease in the concentration of toner on an image can be prevented.
摘要翻译：一种用于消除用于液体电子照相打印机的显影剂中的过量离子的装置，包括感光体介质，用于通过向感光体介质发射激光而形成静电潜像的激光扫描单元和用于显影静电潜像的显影单元使用作为调色剂和液体载体的混合物的显影剂的感光体介质的图像区域。该装置包括：设置在显影单元的一侧的沉降单元，用于使用电力在短时间内沉淀从显影单元供应的显影剂的调色剂; 安装在显影单元和沉降单元之间的显影剂输入/输出控制器，用于选择性地控制显影剂的输入/输出; 以及过量的离子消除单元，用于消除沉淀单元的上部中包含在显影剂中的过量离子。因此，在用于消除显影剂中的过量离子的装置中，显影剂在打印机的操作期间从显影单元偶然地在沉淀槽中流动。流入的显影剂中的调色剂通过向沉降单元的上下电极板施加偏压而在短时间内稳定。然后，消除了包含在设置在沉淀池上部的显影剂中的过量离子，其中调色剂的沉降充分地形成。因此，在采用根据本发明的上述装置的液体电子照相打印机中，可以防止图像上调色剂浓度的降低。

6. 发明授权

US08086153B2 Developing apparatus usable with image forming apparatus, image forming apparatus having the same, method to prevent developer from flowing out the developing apparatus 有权
标题翻译：可用于图像形成装置的显影装置，具有该显影装置的图像形成装置，用于防止显影剂流出显影装置的方法
公开(公告)号：US08086153B2
公开(公告)日：2011-12-27
申请号：US12248112
申请日：2008-10-09
申请人： In-cheol Jeon , Yong-baek Yoo
发明人： In-cheol Jeon , Yong-baek Yoo
IPC分类号： G03G15/08 , G03G15/09
CPC分类号： G03G15/0921 , G03G15/0896
摘要： A developing apparatus usable with an image forming apparatus includes a developer carrier includes a plurality of magnetic poles and a case to rotatably support the developer carrier, the case storing developer is supplied to the developer carrier, and a magnetic pole changing apparatus disposed at an end of the developer carrier to change a position of the plurality of magnetic poles with respect to the case.
摘要翻译：可用于图像形成装置的显影装置包括显影剂载体，其包括多个磁极和可旋转地支撑显影剂载体的壳体，壳体存储显影剂被供应到显影剂载体，并且磁极更换装置设置在末端显影剂载体改变相对于壳体的多个磁极的位置。

7. 发明申请

US20060257156A1 Image forming apparatus for determining conveying state of printing medium and a method thereof 审中-公开
标题翻译：用于确定打印介质的传送状态的图像形成装置及其方法
公开(公告)号：US20060257156A1
公开(公告)日：2006-11-16
申请号：US11341428
申请日：2006-01-30
申请人： Myung-ho Kyung , Yong-baek Yoo
发明人： Myung-ho Kyung , Yong-baek Yoo
IPC分类号： G03G15/00
CPC分类号： G03G15/1655 , G03G2215/0119
摘要： An image forming apparatus for determining a state of conveying a printing medium and a method thereof are disclosed. The image forming apparatus includes a convey belt rotating in a caterpillar manner for conveying a printing medium to a photoconductor. A charge roller charges a printing medium that enters the convey belt. A convey roller faces the charge roller and forms a convey nib with the charge roller. A transfer unit transfers a developer image formed on the photoconductor to the printing medium. A resistance detector constantly detects resistance of the convey roller. A controller determines whether the resistance is varied within a reference time.
摘要翻译：公开了一种用于确定传送打印介质的状态的图像形成装置及其方法。图像形成装置包括以履带方式旋转的传送带，用于将打印介质传送到感光体。充电辊对进入输送带的打印介质充电。输送辊面向充电辊并与充电辊形成传送笔尖。转印单元将形成在感光体上的显影剂图像转印到打印介质上。电阻检测器不断检测输送辊的电阻。控制器确定电阻是否在参考时间内变化。

8. 发明申请

US20060084000A1 Toner composition for electrophotographic imaging apparatus and method of preparing the same 审中-公开
标题翻译：用于电子照相成像装置的调色剂组合物及其制备方法
公开(公告)号：US20060084000A1
公开(公告)日：2006-04-20
申请号：US11210906
申请日：2005-08-25
申请人： Koichi Tsunemi , Jun-ho Kim , Yong-baek Yoo
发明人： Koichi Tsunemi , Jun-ho Kim , Yong-baek Yoo
IPC分类号： G03G9/09
CPC分类号： G03G9/09708 , G03G9/081 , G03G9/0812 , G03G9/0819 , G03G9/08782 , G03G9/0926 , G03G9/09716 , G03G9/09725
摘要： A toner composition and a method of preparing the same provide a toner composition that includes a coloring agent, a charge control agent, a binder, a wax and an internal additive, wherein the coloring agent and wax are contained as a master batch, and the internal additive includes toner particles having at least one component selected from a hydrophobic silica, a hydrophobic titanium oxide and/or a hydrophobic aluminain e.g., an electrophotographic imaging apparatus. A toner composition has an enhanced pulverizing property obtained by preparing the toner composition by a pulverizing method, wherein charges are readily controlled, the durability of the final toner composition is significant, and the images have an improved quality, permitting printing of a significant number of copies thereof,
摘要翻译：调色剂组合物及其制备方法提供了包含着色剂，电荷控制剂，粘合剂，蜡和内部添加剂的调色剂组合物，其中着色剂和蜡作为母料包含，并且内部添加剂包括具有至少一种选自疏水性二氧化硅，疏水性氧化钛和/或疏水性铝盐的组分的调色剂颗粒，例如电子照相成像设备。调色剂组合物具有通过粉碎方法制备调色剂组合物获得的粉碎性能增强，其中容易控制电荷，最终调色剂组合物的耐久性显着，并且图像具有改进的质量，允许印刷大量的副本，

9. 发明申请

US20050084289A1 Housing assembly of OPC unit 有权
标题翻译： OPC单元的外壳组件
公开(公告)号：US20050084289A1
公开(公告)日：2005-04-21
申请号：US10858284
申请日：2004-06-02
申请人： Chung-guk Baek , Yong-baek Yoo
发明人： Chung-guk Baek , Yong-baek Yoo
IPC分类号： G03G21/00 , G03G5/04 , G03G5/06 , G03G15/00 , G03G15/02 , G03G21/16 , G03G21/18
CPC分类号： G03G21/1828 , G03G21/1846 , G03G2221/1609 , G03G2221/1846
摘要： A housing assembly of an OPC unit to protect an OPC drum in an image forming apparatus includes a main housing enclosing at least a half of a large-diameter OPC drum and provided with a main-opening selectively contacting a plurality of developing units and a plurality of sub-openings, a first housing and a second housing each mounted on a side of the main housing, a handle hingedly connected to the main housing, and a plurality of brackets mounted on opposite sides of the main housing. As a result, the housing assembly of the OPC unit allows easy development, electrification, exposure, image transfer and treatment of a waste toner, and reliability of the image developing process increases due to the fixation of the developing units. Also, since the exposure of the OPC drum is minimized, an area of the OPC drum to be contaminated can be reduced.
摘要翻译：用于保护图像形成装置中的OPC鼓的OPC单元的壳体组件包括：主壳体，其包围大直径OPC鼓的至少一半，并且设置有选择性地接触多个显影单元和多个显影单元的主开口的子开口，第一壳体和第二壳体，每个安装在主壳体的一侧，铰接地连接到主壳体的手柄和安装在主壳体的相对侧上的多个托架。结果，OPC单元的壳体组件允许容易地开发，带电，曝光，图像转印和处理废粉，并且由于显影单元的固定，图像显影过程的可靠性增加。此外，由于OPC鼓的曝光被最小化，因此可以减少受到污染的OPC鼓的区域。

10. 发明授权

US5890039A Apparatus for preventing toner from settling in a wet developing unit 失效
标题翻译：用于防止调色剂沉积在湿式显影单元中的装置
公开(公告)号：US5890039A
公开(公告)日：1999-03-30
申请号：US96353
申请日：1998-06-12
申请人： Yong-baek Yoo
发明人： Yong-baek Yoo
IPC分类号： G03G15/10
CPC分类号： G03G15/104
摘要： An apparatus for preventing toner from settling in a wet developing unit, includes (1) a storage vessel for storing a developer, (2) a developing portion for developing electrostatic latent images formed on a photosensitive medium, (3) a flow pipe having-one end connected to the storage vessel, (4) a cabinet connected to the other end of the flow pipe, for receiving the developer from the storage vessel, (5) a circulation pipe connected to the cabinet and the storage vessel, for returning the developer from the cabinet to the storage vessel, (6) a supply pipe connected to the cabinet and the developing portion, for supplying the developer from the cabinet to the developing portion, and (7) a flow path changing unit for selectively directing the developer supplied via the flow pipe to either the supply pipe or the circulation pipe.
摘要翻译：一种用于防止调色剂沉积在湿式显影单元中的装置，包括（1）用于存储显影剂的存储容器，（2）用于使形成在感光介质上的静电潜像显影的显影部分，（3）一端连接到储存容器，（4）连接到流管的另一端的机柜，用于从储存容器接收显影剂;（5）连接到机柜和储存容器的循环管，显影剂从橱柜到储存容器，（6）连接到机壳和显影部分的供应管，用于将显影剂从橱柜供应到显影部分，以及（7）流路改变单元，用于选择性地引导显影剂通过流量管供应到供应管或循环管。

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