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1. 发明授权

US06445898B1 Cleaning structure for a developing unit of liquid electrophotographic printer 有权
公开(公告)号：US06445898B1
公开(公告)日：2002-09-03
申请号：US09725886
申请日：2000-11-30
申请人： Kee-son Chang , Yong-kook Kim , Seung-young Byun , Jae-young Jang , Ji-won Seo
发明人： Kee-son Chang , Yong-kook Kim , Seung-young Byun , Jae-young Jang , Ji-won Seo
IPC分类号： G03G1510
摘要： A developing unit of a liquid electrophotographic printer includes a developing roller, for forming a development gap with a photoreceptor web where developer is filled and developing an electrostatic latent image formed on the photoreceptor web, a squeegee roller installed at the rear end of the developing roller for closely pressing the photoreceptor web to squeegee surplus developer, and a cleaning mechanism for removing toner particles of the developer adhering to a surface of the squeegee roller using an electrical force. Since the toner particles adhering to the squeegee roller are removed, contamination of a developed image is prevented and a clean image can be printed.

2. 发明授权

US5907754A Method for driving development unit for image forming apparatus to simultaneously remove drip lines 失效
标题翻译：用于驱动图像形成装置的显影单元以同时去除滴水线的方法
公开(公告)号：US5907754A
公开(公告)日：1999-05-25
申请号：US74386
申请日：1998-05-08
申请人： Wan-ha Kim , Kee-son Chang , Jin-geun Kwak
发明人： Wan-ha Kim , Kee-son Chang , Jin-geun Kwak
IPC分类号： G03G15/06 , G03G15/01 , G03G15/11 , G03G15/10
CPC分类号： G03G15/0121 , G03G15/11 , G03G2215/017
摘要： A method for driving development devices of an image forming apparatus including the steps of: (a) simultaneously rotating gear cams of the respective development devices for colors Y (yellow), M (magenta), C (cyan) and K (black); (b) determining whether the frame of the development devices is lifted to a preset position; (c) rotating a developing roller; (d) coating a developer liquid on an image portion of a photoreceptor belt; (e) determining whether the image portion has passed through a transfer roller or not; (f) simultaneously rotating the gear cams of the respective development devices for colors Y, M, C and K if the image portion has passed through the transfer roller; (g) determining whether the distance between the frame and the photoreceptor belt is a preset value; (h) simultaneously stopping the gear cams of the respective development devices for colors Y, M, C and K if the distance between the frame and the photoreceptor belt is the preset value; and (i) simultaneously removing drip lines by simultaneously reversely rotating first and second squeegee rollers in the respective development devices. Therefore, the overall configuration becomes simplified, thereby reducing the fabrication cost, as well as making maintenance and repair thereof easy.
摘要翻译：一种用于驱动图像形成装置的显影装置的方法，包括以下步骤：（a）同时旋转各种显影装置的颜色Y（黄色），M（品红色），C（青色）和K（黑色）的齿轮凸轮; （b）确定显影装置的框架是否提升到预设位置; （c）旋转显影辊; （d）将显影液涂覆在感光带的图像部分上; （e）确定图像部分是否已经通过转印辊; （f）如果图像部分已经通过转印辊，则同时旋转用于颜色Y，M，C和K的各显影装置的齿轮凸轮; （g）确定框架和感光带之间的距离是否是预设值; （h）如果框架和感光带之间的距离是预设值，则同时停止用于颜色Y，M，C和K的各个显影装置的齿轮凸轮; 和（i）同时通过在相应的显影装置中同时反转第一和第二刮板辊来除去滴水线。因此，整体结构变得简化，从而降低制造成本，并且使维护和修理变得容易。

3. 发明授权

US06314259B1 Photoreceptor web for liquid electrophotographic printer 失效
标题翻译：液体电子照相打印机的感光纤维网
公开(公告)号：US06314259B1
公开(公告)日：2001-11-06
申请号：US09588555
申请日：2000-06-07
申请人： Kee-son Chang , Jin-geun Kwak
发明人： Kee-son Chang , Jin-geun Kwak
IPC分类号： G03G1510
CPC分类号： G03G15/754
摘要： A photoreceptor web for a liquid electrophotographic printer on which a predetermined image is developed at a development unit and the developed image is transferred to a transfer unit to be printed on a sheet of paper, in which a total length of the photoreceptor web is 32±0.25 inches. The total length of the photoreceptor web is set to include a plurality of image zones in which an image to be printed on a sheet of paper is developed, an interval zone provided between the image zones as allowance zone, a drip line removing zone provided to avoid frictional contact with a squeegee roller of the development unit when the drip line is removed, a seam portion formed by combining both end portions of the photoreceptor web for forming a closed path, and a mark zone where a mark for detecting the seam portion is provided. Thus, the photoreceptor web does not occupy excess installation space in the printer and development, transfer and drip line removing operations are performed smoothly.
摘要翻译：一种用于液体电子照相打印机的感光体网，其中在显影单元处将预定图像显影，并将显影图像转印到要印刷在纸上的转印单元，其中感光体网的总长度为32± 0.25英寸感光纤维网的总长度被设定为包括多个图像区域，其中要打印在一张纸上的图像被显影，在图像区域之间设置的间隔区域作为允许区域，提供给当除去滴水线时，避免与显影单元的刮板辊摩擦接触，通过组合用于形成闭合路径的感光体网的两个端部形成的接缝部分和用于检测接缝部分的标记的标记区域提供。因此，感光体网不会占用打印机中的过多的安装空间，并且平滑地进行显影，转印和滴线去除操作。

4. 发明授权

US06292642B1 Squeegee roller liquid electrophotographic printer 有权
标题翻译：刮墨辊液体电子照相打印机
公开(公告)号：US06292642B1
公开(公告)日：2001-09-18
申请号：US09615760
申请日：2000-07-13
申请人： Kee-son Chang , Jin-geun Kwak
发明人： Kee-son Chang , Jin-geun Kwak
IPC分类号： G03G1510
CPC分类号： G03G15/11
摘要： A squeegee roller for a liquid electrophotographic printer includes a steel core and an elastic rubber layer coated on an outer circumferential surface of the steel core. The elastic rubber layer forms a squeegee nip by contacting a photoreceptor web, thereby to make a toner of the excess developer, which is developed in an area for an electrostatic latent image of the photoreceptor web, into a thin film in the area for electrostatic latent image and to squeeze the remaining carrier. The roughness (Ra) of a surface of the elastic rubber layer satisfies the condition, 1.5 &mgr;m≦Ra≦2.5 &mgr;m. Further ,a criss-cross grove pattern is formed on the surface of the squeegee roller so as to guide the excess developer liquid
摘要翻译：用于液体电子照相打印机的刮墨辊包括钢芯和涂覆在钢芯的外圆周表面上的弹性橡胶层。弹性橡胶层通过使感光体网接触而形成刮墨辊压区，从而使在感光体网的静电潜像区域中显影的过量显影剂的调色剂成为静电潜伏区域中的薄膜图像并挤压剩余的载体。弹性橡胶层表面的粗糙度（Ra）满足条件，1.5μm

5. 发明授权

US5999778A Developing device of wet type printer 失效
标题翻译：湿式打印机的显影装置
公开(公告)号：US5999778A
公开(公告)日：1999-12-07
申请号：US126602
申请日：1998-07-31
申请人： Kee-son Chang , Wan-ha Kim , Jin-geun Kwak
发明人： Kee-son Chang , Wan-ha Kim , Jin-geun Kwak
IPC分类号： B41J2/385 , G03G15/10 , G03G21/00
CPC分类号： G03G15/101 , G03G2215/017
摘要： A developing device, of a wet type printer, provided with a reservoir for holding developer liquid. A developing roller is installed at an upper region of the reservoir, and contacts a photosensitive belt. A cleaning device for cleaning the developing roller, is in contact with the developing roller. An auxiliary reservoir is installed below the developing roller, and within the reservoir, to hold a predetermined amount of the developer liquid in which the lower portion of the developing roller is immersed to a predetermined depth. The cleaning device is installed within the auxiliary reservoir to be immersed in the developer liquid and is provided with a rotating shaft and a brush installed around the circumferential surface of the rotating shaft. The developing roller is effectively cleaned, by the cleaning device, and particles adhering to the developing roller are easily removed. The removed particles are then recovered and used again in subsequent printing operations.
摘要翻译：一种湿式打印机的显影装置，其具有用于保持显影液的储存器。显影辊安装在储存器的上部区域，并与感光带接触。用于清洁显影辊的清洁装置与显影辊接触。辅助储存器安装在显影辊下方，并且在储存器内部，以将预定量的显影剂液体保持在显影辊的下部浸入到预定深度。清洁装置安装在辅助容器内以浸没在显影剂液体中，并且设置有旋转轴和安装在旋转轴的圆周表面周围的刷子。通过清洁装置有效地清洁显影辊，并且容易地去除附着在显影辊上的颗粒。然后将所除去的颗粒回收并再次用于随后的印刷操作。

6. 发明授权

US6125254A Ink leakage prevention system for liquid electrophotographic printer having a development tray 有权
标题翻译：具有显影托盘的液体电子照相打印机的墨水泄漏防止系统
公开(公告)号：US6125254A
公开(公告)日：2000-09-26
申请号：US440471
申请日：1999-11-15
申请人： Kee-son Chang , Ji-won Seo , Jin-geun Kwak
发明人： Kee-son Chang , Ji-won Seo , Jin-geun Kwak
IPC分类号： B41J2/435 , G03G15/10
CPC分类号： G03G15/104 , G03G15/10 , Y10S222/01
摘要： An ink leakage prevention system, for a liquid electrophotographic printer having a development tray, which includes a chassis, installed at a main body of the printer, a development tray, installed at the lower portion of a development unit and is detachable from the main body of the printer, wherein the developing tray accommodates developer left over after being used by the development unit for developing and which has a discharge portion for discharging the accommodated developer, a drain tray installed at the chassis to drain the developer discharged from the development tray into a circulation tank, and a discharge portion opening/shutting means for closing the discharge portion when the development tray is separated from the drain tray and for opening the discharge portion when the development tray is coupled to the drain tray. Thus, when the development tray is replaced or repaired, the parts in the main body of the printer are prevented from being damaged by any developer remaining in the development tray. Further, the present invention provides a simple structure wherein the packing holder which houses the packing member is directly installed in the discharge portion.
摘要翻译：一种用于具有显影托盘的液体电子照相打印机的墨水泄漏防止系统，该显影托盘包括安装在打印机主体上的底盘，显影托盘，其安装在显影单元的下部，并且能够从主体的打印机，其中显影盘容纳显影单元用于显影后剩余的显影剂，并且具有用于排出容纳的显影剂的排出部分，安装在底盘上的排水盘，以将从显影盘排出的显影剂排出循环罐，以及当显影托盘与排水盘分离并且当显影盘联接到排水盘时打开排出部分时，用于关闭排出部的排出部分打开/关闭装置。因此，当更换或修理显影托盘时，防止打印机主体中的部件被残留在显影托盘中的任何显影剂损坏。此外，本发明提供一种简单的结构，其中容纳填料构件的填料保持器直接安装在排放部分中。

7. 发明授权

US6108507A Ink supplying technique for image forming apparatus 有权
标题翻译：图像形成装置的供墨技术
公开(公告)号：US6108507A
公开(公告)日：2000-08-22
申请号：US342185
申请日：1999-06-29
申请人： Kee-son Chang , Jin-geun Kwak
发明人： Kee-son Chang , Jin-geun Kwak
IPC分类号： B41J2/385 , G03G15/10
CPC分类号： G03G15/104
摘要： A technique for supplying ink in a liquid printer, for example, includes an apparatus containing: an ink reservoir containing ink; a supply pump for pumping ink into the ink reservoir; a manifold coupled to the supply pump via an ink supply pipe and through which ink is injected to a gap between a developing roller and a photoreceptor web, and an ink storing portion installed between the ink supply pipe and the manifold and having a sectional area greater than that of the ink supply pipe so that a change in pressure of ink supplied to the manifold from the ink supply pipe is minimized.
摘要翻译：例如，在液体打印机中供墨的技术包括一种装置，包括：含有油墨的油墨容器; 用于将墨水泵入墨水容器的供应泵; 歧管，其通过供墨管连接到供应泵，并且通过该歧管将墨水注入到显影辊和感光体网之间的间隙，以及安装在供墨管和歧管之间的墨水存储部分，并且具有更大的截面面积使得从供墨管供给到歧管的墨的压力变化最小化。

8. 发明授权

US5937250A Development apparatus with cleaning device for liquid electrophotographic printer 失效
标题翻译：具有液体电子照相打印机清洁装置的开发设备
公开(公告)号：US5937250A
公开(公告)日：1999-08-10
申请号：US119942
申请日：1998-07-21
申请人： Jin-geun Kwak , Wan-ha Kim , Kee-son Chang
发明人： Jin-geun Kwak , Wan-ha Kim , Kee-son Chang
IPC分类号： G03G21/00 , B41J2/385 , G03G15/10 , G03G15/11 , G03G21/10
CPC分类号： G03G15/11
摘要： A development apparatus for a liquid electrophotographic printer includes a development roller for supplying a developer liquid to a photoreceptor belt on which a latent electrostatic image is formed, a plurality of squeegee rollers for removing excess developer liquid sticking to the photoreceptor belt, at least one cleaning device having a rotary body rotatably installed in proximity with at least one of the plurality of squeegee rollers, and a plurality of blades installed on the perimeter of the rotary body at a predetermined spacing, in contact with the surfaces of the respective squeegee rollers, and a rotation mechanism for selectively bringing one of the plurality of blades into contact with the surface of each squeegee roller. Therefore, when one blade is worn, the worn blade can be replaced with a new one without dismantling the development apparatus, and thus the life of the development apparatus is prolonged.
摘要翻译：一种用于液体电子照相打印机的显影装置，包括用于将显影液供给到其上形成静电潜像的感光带的显影辊，多个用于除去粘附到感光带上的多余显影剂液体的刮板辊，至少一个清洁装置，其具有可旋转地安装在所述多个刮板辊中的至少一个上的旋转体，以及以相对于所述各个刮板辊的表面接触的预定间隔安装在所述旋转体的周边上的多个叶片，以及用于选择性地使多个叶片中的一个叶片与每个刮板辊的表面接触的旋转机构。因此，当一个刀片磨损时，磨损的刀片可以用新的刀片替换而不拆卸显影装置，因此显影装置的寿命延长。

9. 发明授权

US5884127A Squeeze roller assembly of wet type developer for an electrophotographic printer 失效
标题翻译：用于电子照相打印机的湿式显影剂的挤压辊组件
公开(公告)号：US5884127A
公开(公告)日：1999-03-16
申请号：US055698
申请日：1998-04-07
申请人： Wan-ha Kim , Kee-son Chang , Jin-geun Kwak
发明人： Wan-ha Kim , Kee-son Chang , Jin-geun Kwak
IPC分类号： B41J2/385 , G03G15/11 , G03G15/01
CPC分类号： G03G15/11
摘要： In a squeeze roller assembly of a wet type developer of an electrophotographic printer, a shaft is rotatably installed in a frame. A first roller is fixed on the shaft for filming solid toner from a developing liquid onto a photosensitive belt. Second rollers are rotatably installed on the same shaft at both sides of the first roller. The first roller, attached to the central portion of the imaging surface of a photosensitive belt, rotates in the same direction as that of the conveying direction of the photosensitive belt. The second roller rotates in a direction opposite to the direction of the photosensitive belt by an inverse rotator. Therefore, it is possible to reduce the required installation space by having the first and second rollers share a common shaft as a rotating axis.
摘要翻译：在电子照相打印机的湿式显影剂的挤压辊组件中，轴可旋转地安装在框架中。第一辊固定在轴上，用于将固体调色剂从显影液体成膜到感光带上。第二辊可旋转地安装在第一辊两侧的同一轴上。安装在感光带的成像面的中央部的第一辊沿与感光带的输送方向相同的方向旋转。第二辊通过逆旋转器沿与感光带的方向相反的方向旋转。因此，可以通过使第一和第二辊共享公共轴作为旋转轴来减少所需的安装空间。

10. 发明授权

US5991581A Development roller cleaning apparatus of liquid electrophotographic printer 失效
标题翻译：液体电子照相打印机的显影辊清洁装置
公开(公告)号：US5991581A
公开(公告)日：1999-11-23
申请号：US76792
申请日：1998-05-13
申请人： Jin-geun Kwak , Wan-ha Kim , Kee-son Chang
发明人： Jin-geun Kwak , Wan-ha Kim , Kee-son Chang
IPC分类号： G03G15/10
CPC分类号： G03G15/101
摘要： A development roller cleaning apparatus includes a cleaning blade installed with an end contacting an outer surface of a development roller for removing an excess developer liquid therefrom, and a guide for guiding an excess developer liquid removed by a squeegee roller installed downstream from the development roller to the end of the cleaning blade.
摘要翻译：显影辊清洁装置包括：清洁刮板，其安装有与显影辊的外表面接触的端部，用于从其中除去过量的显影液;以及引导件，用于引导由显影辊下游安装的刮板辊除去的过量显影液，清洁刀片的末端。

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