公开(公告)号：US06650856B2

公开(公告)日：2003-11-18

申请号：US09953290

申请日：2001-09-17

申请人： Hyeong-jin Ahn ,  Cheol-young Han ,  Woo-yong Park ,  Seung-young Byun ,  Myung-ho Kyung

发明人： Hyeong-jin Ahn ,  Cheol-young Han ,  Woo-yong Park ,  Seung-young Byun ,  Myung-ho Kyung

IPC分类号： G03G1510

CPC分类号： G03G15/11

摘要： A liquid electrophotographic printer employs a continuously circulating photoreceptor web having a non-image region with a potential higher than an image region. A laser scanner forms a latent electrostatic image in the image region, and a development unit develops the latent image using an ink having toner particles dispersed in a liquid carrier. The development unit includes a developer roller with a surface potential in between that of the image and non-image region for forming the toner image by attaching the toner particles to the image region; a toner removal roller with a surface potential between that of the image and non-image regions after they pass through the developer roller, for removing toner particles remaining in a liquid carrier film in the non-image region; and a squeeze roller with a surface potential higher than any of the foregoing, for squeezing the liquid carrier out of the toner image by compression.

公开(公告)号：US06349186B1

公开(公告)日：2002-02-19

申请号：US09659458

申请日：2000-09-11

申请人： Woo-yong Park ,  Kwang-ho No

发明人： Woo-yong Park ,  Kwang-ho No

IPC分类号： G03G1508

CPC分类号： G03G15/101

摘要： There are provided a method for controlling the mode of a developing station of a liquid electrophotographic printer and a development roller driving apparatus therefor. In the controlling method, a printing mode, a drip line removal mode and a home mode are sequentially performed, and a development roller is subjected to racing in the home mode to be cleaned. Since the development roller is cleaned in the home mode in which the development roller is spaced apart from a photosensitive belt, the photosensitive belt is not contaminated by the development roller while cleaning the development roller. Also, the cleaning of the development roller is performed after completing a drip line removal mode, so sufficient cleaning time can be obtained. The development roller driving apparatus for implementing the controlling method includes a motor which is a driving power source, a reduction gear train for reducing and transmitting power of the motor, a power relay gear engaged with the reduction gear train, and a link/gear assembly for transmitting the power relayed by the power relay gear to the development roller gear. Accordingly, the development roller can be rotated in any position corresponding to the printing mode, the drip line removal mode or the home mode. Therefore, the cleaning of a development roller is allowed in the home mode.

摘要翻译： 提供了一种用于控制液体电子照相打印机的显影站的模式的方法及其显影辊驱动装置。 在控制方法中，依次执行打印模式，滴水线去除模式和家庭模式，并且显影辊在家用模式下进行赛车以进行清洁。 由于显影辊在显影辊与感光带间隔开的家用模式下被清洁，所以在清洁显影辊的同时，感光带不被显影辊污染。 此外，在完成滴水线去除模式之后执行显影辊的清洁，因此可以获得足够的清洁时间。 用于实现该控制方法的显影辊驱动装置包括作为驱动电源的电动机，用于减小和传递电动机的功率的减速齿轮系，与减速齿轮系啮合的动力传动齿轮，以及连杆/齿轮组件 用于将由动力继电器齿轮传递的动力传递到显影辊齿轮。 因此，显影辊可以在对应于打印模式，滴水线去除模式或家庭模式的任何位置旋转。 因此，在家庭模式中允许清洁显影辊。

公开(公告)号：US06305860B1

公开(公告)日：2001-10-23

申请号：US09656135

申请日：2000-09-06

申请人： Woo-yong Park

发明人： Woo-yong Park

IPC分类号： B41J726

CPC分类号： G03G15/11

摘要： A squeezing apparatus of a liquid electrophotographic printer includes a squeezing roller for squeezing out and removing the carrier from a developer which is applied on a photosensitive belt by its passive-rotational movement while being pressed into tight contact with the photosensitive belt at a certain pressure together with a squeezing backup roller, a squeezing brush selectively coming in contact with the outer circumference of the squeezing roller, for cleaning the squeezing roller by being rotated by a separate driving section, and a squeezing roller slip prevention mechanism disposed on both ends of a shaft of the squeezing roller to come in tight contact with the squeezing backup roller during the pressing of the squeezing roller, for preventing any occurrence of slip of the squeezing roller with respect to the photosensitive belt. The squeezing roller slip prevention mechanism includes a friction roll in friction contact with the squeezing backup roller, a bush bearing for supporting the friction roll with respect to the shaft of the squeezing roller, and an one-way bearing disposed between the bush bearing and the squeezing roller, for permitting free backward-rotation of the squeezing roller with respect to the friction roll in the drip line removing mode.

摘要翻译： 液体电子照相打印机的挤压装置包括挤压辊，用于挤压和移除载体，该显影剂通过其被动旋转运动施加在感光带上，同时以一定压力与感光带紧密接触 通过挤压支撑辊，挤压刷选择性地与挤压辊的外周接触，用于通过单独的驱动部分旋转来清洁挤压辊，以及设置在轴的两端的挤压辊防滑机构 的挤压辊在挤压辊的挤压期间与挤压支承辊紧密接触，以防止挤压辊相对于感光带发生滑动。 挤压辊防滑机构包括与挤压支承辊摩擦接触的摩擦辊，用于相对于挤压辊的轴支撑摩擦辊的衬套轴承，以及设置在衬套轴承和衬套轴承之间的单向轴承 挤压辊，用于允许挤压辊相对于摩擦辊在滴水线去除模式中自由反向旋转。

公开(公告)号：US06198894B1

公开(公告)日：2001-03-06

申请号：US09492283

申请日：2000-01-27

申请人： Woo-yong Park

发明人： Woo-yong Park

IPC分类号： G03G1510

CPC分类号： G03G15/11

摘要： An apparatus for driving a squeegee roller of a liquid electrophotographic printer including a squeegee gear coaxially installed at one shaft end of the squeegee roller, a driving gear installed such that in a state where the squeegee roller contacts the photoreceptor belt, the center of the rotation shaft thereof is positioned on a plane perpendicular to the elevating direction of the squeegee roller and passing through the center of the rotation shaft of the squeegee roller, to be engaged with the squeegee roller, and a driving source having an output shaft for rotating the driving gear to drive the squeegee roller to rotate in a reverse direction to the circulating direction of the photoreceptor belt. Therefore, even when a drip line removal mode of the printer is terminated to be switched to a stop mode, the squeegee roller does not stop but keeps rotating in reverse while it is in the course of being lowered from the photoreceptor belt, thereby removing a drip line on the photoreceptor belt as accurately as possible.

摘要翻译： 一种用于驱动液体电子照相打印机的刮板辊的装置，其包括同轴地安装在刮板辊的一个轴端的刮板齿轮，驱动齿轮安装成使得在刮板辊接触感光带的状态下，旋转中心 其轴位于与刮板辊的升降方向垂直的平面上并穿过刮板辊的旋转轴的中心以与刮板辊接合，以及驱动源，其具有用于旋转驱动的输出轴 驱动刮板辊沿与感光带的循环方向相反的方向旋转。 因此，即使当打印机的滴水线去除模式被终止以切换到停止模式时，刮板辊也不会停止，而是在从感光带降低的过程中继续旋转，从而去除 感光带上的滴线尽可能准确。

公开(公告)号：US06975824B2

公开(公告)日：2005-12-13

申请号：US10625612

申请日：2003-07-24

申请人： Woo-Yong Park

发明人： Woo-Yong Park

IPC分类号： G03G15/10 ,  G03G15/01 ,  G03G15/11 ,  G03G21/10

CPC分类号： G03G15/104 ,  G03G2215/0626 ,  G03G2215/0658

摘要： A wet electrophotographic printer includes a developing chamber communicating with an inlet of a first nip between a developing roller and a deposit roller to supply a liquid developer into the first nip therebetween, a developer storing chamber communicating with an inlet of a second nip between the developing roller and a metering roller to withdraw the liquid developer of a low density generated at the second nip during a development, and preventing the liquid developer of the low density from being supplied to the first nip, and a developer supply unit disposed below a partition to supply the liquid developer from the developer storing chamber into the developing chamber. The liquid developer of the low density generated at the second nip is not directly supplied to the first nip, but is supplied after being withdrawn to the developer storing chamber and mixed therein.

摘要翻译： 湿电子照相打印机包括与显影辊和沉积辊之间的第一辊隙的入口连通的显影室，以将液体显影剂供应到它们之间的第一辊隙中;显影剂储存室，与显影辊之间的第二辊隙的入口连通， 辊和计量辊，以在显影期间收集在第二辊隙处产生的低密度的液体显影剂，并且防止低密度的液体显影剂被供应到第一辊隙，以及设置在隔板下方的显影剂供应单元 将液体显影剂从显影剂储存室供应到显影室中。 在第二压区产生的低密度的液体显影剂不直接供应到第一压区，而是在被抽出到显影剂储存室并在其中混合之后供应。

公开(公告)号：US06597880B2

公开(公告)日：2003-07-22

申请号：US09848502

申请日：2001-05-04

申请人： Woo-yong Park

发明人： Woo-yong Park

IPC分类号： G03G1508

CPC分类号： G03G15/101 ,  G03G15/11 ,  G03G21/0088

摘要： An ink pollution prevention device in a wet electrophotographic printer, for preventing a developer from polluting a photoreceptor and peripheral devices by flowing out at the ends of a development roller, a squeegee roller, and a cleaning roller, is provided with a pair of ink stoppers mounted around a shaft of each roller in a symmetrical manner with each other. Each ink stopper has a plurality of peaks and recesses which form a continuous helical shape in an opposite helical direction from the other ink stopper. The helical direction of the ink stopper is formed to permit the ink in the ink stopper to flow toward the center of the rollers when the rollers are rotated.

公开(公告)号：US6151470A

公开(公告)日：2000-11-21

申请号：US434101

申请日：1999-11-05

申请人： Woo-yong Park

发明人： Woo-yong Park

IPC分类号： B41J2/435 ,  G03G15/10 ,  G03G15/11

CPC分类号： G03G15/11 ,  G03G15/101

摘要： An apparatus for elevating a squeegee roller and a development roller for a liquid printer, including a pair of first supporting blocks for rotatably supporting both ends of the development roller which transfers a developer liquid to the transfer surface of a photoreceptor belt, a pair of second supporting blocks for rotatably supporting both ends of the squeegee roller which compresses the transfer surface of the photoreceptor belt and removes liquid carrier contained in the transferred developer liquid, a pair of cases in which the first and second supporting blocks are elevatably accommodated parallel to each other, a first elevating mechanism for elevating the cases relative to the photoreceptor belt, a driver unit for driving the first elevating mechanism, and a second elevating mechanism for elevating the first and second supporting blocks in sequence with the elevation of the cases. The apparatus elevates and adjusts the rollers according to the operation mode of the printer.

摘要翻译： 一种用于升高刮板辊和用于液体打印机的显影辊的装置，包括一对第一支撑块，用于可旋转地支撑显影辊的两端，显影辊将显影液转移到感光带的转印面上，一对第二支撑块 用于可旋转地支撑挤压辊的两端的支撑块，其压缩感光带的转印表面并去除包含在转印的显影液中的液体载体，一对壳体，其中第一和第二支撑块彼此平行地可升降 第一升降机构，用于相对于感光带提升壳体;驱动单元，用于驱动第一升降机构;以及第二升降机构，用于按照壳体的高度依次升高第一和第二支撑块。 该设备根据打印机的操作模式升高和调节滚筒。

公开(公告)号：US6072973A

公开(公告)日：2000-06-06

申请号：US307030

申请日：1999-05-07

申请人： Woo-yong Park

发明人： Woo-yong Park

IPC分类号： B41J2/385 ,  G03G15/11 ,  G03G15/10 ,  G03G21/00

CPC分类号： G03G15/11

摘要： A squeeze roller elevating apparatus for a liquid electrophotographic printer in which a squeeze roller selectively presses a photoreceptor belt, the photoreceptor belt being supported by a belt, the apparatus including a squeeze frame fixed to the belt frame to support the squeeze roller, the squeeze roller being capable of elevating, and an elevating mechanism for elevating the squeeze roller. The elevating mechanism includes a driving motor, a winch drum being rotated by the driving motor, a mobile pulley rotatably installed at one end portion of a rotation shaft of the squeeze roller, and a wire having one end thereof fixed to the squeeze frame and the other end thereof wound about the winch drum, to support the mobile pulley, wherein, when the winch drum is rotated by the driving motor, the wire is wound or released so that the mobile pulley and the squeeze roller ascend or descend, respectively.

摘要翻译： 一种用于液体电子照相打印机的挤压辊升降装置，其中挤压辊选择性地按压感光带，感光带由带支撑，该装置包括固定在带框架上的挤压框架以支撑挤压辊，挤压辊 能够升降的升降机构，以及用于升降挤压辊的升降机构。 升降机构包括：驱动电动机，由驱动电动机旋转的绞盘鼓;可旋转地安装在挤压辊的旋转轴的一端部的移动带轮和一端固定在挤压机架上的线， 其另一端围绕绞盘鼓缠绕，以支撑移动滑轮，其中当绞盘鼓被驱动电机旋转时，线被卷绕或释放，使得可动滑轮和挤压辊分别上升或下降。

公开(公告)号：US6058286A

公开(公告)日：2000-05-02

申请号：US362677

申请日：1999-07-29

申请人： Woo-yong Park

发明人： Woo-yong Park

IPC分类号： B41J2/435 ,  G03G15/16

CPC分类号： G03G15/1605 ,  G03G2215/1695

摘要： A transfer unit of an electrophotographic printer, includes a base frame; a first lever which is pivotally installed at the base frame, and by which a transfer roller is supported, the transfer roller rotating while closely contacting a photosensitive belt and to which an image on the photosensitive belt is transferred; and a second lever which is pivotally installed at the base frame, and by which a fixing roller is supported, the fixing roller pressing a paper passing through between the transfer roller and the fixing roller against the transfer roller while rotating in contact with the transfer roller, and fixing an image on the transfer roller onto the paper. A first elastic biasing mechanism is provided for elastically biasing the first lever and the second lever so that the transfer roller and the fixing roller can be separated from each other; a second elastic biasing mechanism is provided for elastically biasing the first lever so that the transfer roller can separate from the photosensitive belt; and a wire is provided one end of which is fixed to a winding gear rotatably installed at the base frame, and the other end of which is fixed to the first lever, and which is connected to the first lever and the second lever so that the transfer roller and the fixing roller, and the photosensitive belt approach each other while overcoming the elastic biasing forces of the first and second elastic biasing mechanisms.

摘要翻译： 电子照相打印机的传送单元，包括基架; 第一杠杆，其枢转地安装在基架上，通过该第一杠杆支撑转印辊，转印辊在感光带紧密接触并且感光带上的图像被转印到其上的同时旋转; 以及第二杠杆，其枢转地安装在基架上，并且定影辊被支撑，定影辊将通过转印辊和定影辊之间的纸张压靠在转印辊上，同时与转印辊接触转动 并且将转印辊上的图像固定到纸上。 提供第一弹性偏置机构用于弹性地偏置第一杆和第二杆，使得转印辊和定影辊可以彼此分离; 提供第二弹性偏置机构，用于弹性偏置第一杆，使得转印辊可以与感光带分离; 并且其一端设置在可旋转地安装在基架上的卷线齿轮上，并且其另一端固定在第一杆上，并连接到第一杆和第二杆上， 转印辊和定影辊，并且感光带在克服第一和第二弹性偏置机构的弹性偏压力的同时彼此接近。

公开(公告)号：US06356725B1

公开(公告)日：2002-03-12

申请号：US09658498

申请日：2000-09-08

申请人： Woo-yong Park ,  Kwang-ho No

发明人： Woo-yong Park ,  Kwang-ho No

IPC分类号： G03G1502

CPC分类号： G03G15/754 ,  G03G2221/1606

摘要： A photosensitive belt cartridge includes a cartridge body substantially in the shape of an ovoid whose one end is open to receive the photosensitive belt in an endless track thereto. A plurality of spring plates, whose respective ends are fixed on ends of inner wall of the cartridge body, are arranged on the inner wall of the cartridge body along the endless track of the photosensitive belt at certain intervals, for supporting the photosensitive belt in cooperation with the inner wall of the cartridge body. An inner cover is used which is disposed at an open portion of the cartridge body for supporting edges of the photosensitive belt, and also for supporting the ends of the plurality of spring plates, for preventing partial loosening of the photosensitive belt. Further, the cartridge body includes a guiding rail formed on the upper surface, which has a pair of outwardly-bent locking ribs which are slidably fit into the advancing rail of the belt unit. The inner cover slides into the cartridge body when the inner cover is advanced into the belt unit. Accordingly, since the structure is simplified and the number of parts is reduced, the assembling time and cost can be greatly reduced while manufacturing can be more profitable. Further, the photosensitive belt cartridge is easy to handle, and the photosensitive belt thereof is protected from any possible damage.

摘要翻译： 感光带盒包括基本上呈卵形形状的盒体，其一端敞开以将感光带接收在环形轨道上。 多个弹簧板的端部固定在盒体的内壁的端部，以一定的间隔沿着感光带的环形轨道布置在盒体的内壁上，用于支持感光带的合作 与盒体的内壁。 使用内盖，其设置在盒主体的开口部分，用于支撑感光带的边缘，并且还用于支撑多个弹簧板的端部，以防止感光带的部分松动。 此外，盒体包括形成在上表面上的导轨，其具有可滑动地配合到带单元的前进轨道中的一对向外弯曲的锁定肋。 当内盖进入皮带单元时，内盖滑入盒体。 因此，由于结构简化，部件数量减少，因此可以大大降低组装时间和成本，同时制造更有利可图。 此外，感光带盒容易处理，并且其感光带被保护免受任何可能的损坏。