公开(公告)号：US06181448B2

公开(公告)日：2001-01-30

申请号：US09427073

申请日：1999-10-26

申请人： Hwan-young Choi ,  Won-hyung Lee ,  Sung-min Cho ,  Moon-gyu Lee ,  Jee-hong Min ,  Young-il Kim ,  Jin-seung Choi ,  Jae-yong Eum

发明人： Hwan-young Choi ,  Won-hyung Lee ,  Sung-min Cho ,  Moon-gyu Lee ,  Jee-hong Min ,  Young-il Kim ,  Jin-seung Choi ,  Jae-yong Eum

IPC分类号： G02B532

CPC分类号： G02B26/106

摘要： A multi-laser scanning unit (LSU) in which scanning lines incident parallel onto a photoreceptor have the same scanning direction. The multi-laser scanning unit includes: a driving source for providing a rotatory force; a deflection disk installed around a rotary shaft of the driving source having a plurality of sectors each with a hologram pattern for diffracting and deflecting incident light, for scanning light through rotation; a plurality of light sources installed facing one surface of the deflection disk for irradiating a plurality of light lines onto predetermined points of the deflection disk; and a light path changing portion for changing traveling paths of the plurality of scanning lines formed by the rotation of the deflection disk, wherein the plurality of light sources are arranged such that two incident points which are the farthest from each other among the plurality of incident points formed on the deflection disk form 180° with the center point of the deflection disk.

摘要翻译： 多个激光扫描单元（LSU），其中平行于感光体的扫描线具有相同的扫描方向。 多激光扫描单元包括：用于提供旋转力的驱动源; 安装在所述驱动源的旋转轴周围的偏转盘具有多个扇区，每个扇区均具有用于衍射和偏转入射光的全息图，用于通过旋转扫描光; 多个光源，其安装在偏转盘的一个表面上，用于将多条光线照射到偏转盘的预定点上; 以及光路改变部分，用于改变通过偏转盘的旋转形成的多条扫描线的行进路径，其中多个光源被布置成使得在多个事件中彼此最远的两个入射点 在偏转盘上形成的点与偏转盘的中心点形成180°。

公开(公告)号：US06154244A

公开(公告)日：2000-11-28

申请号：US98979

申请日：1998-06-17

申请人： Jae-yong Eum ,  Yong-keun Kim

发明人： Jae-yong Eum ,  Yong-keun Kim

IPC分类号： B41J2/44 ,  G02B26/10 ,  G02B26/12 ,  G03G15/01 ,  G03G15/04 ,  H04N1/113 ,  B41J15/14

CPC分类号： G02B26/123

摘要： A beam scanning apparatus of an electrophotographic color printer having first and second light sources, and a deflecting unit including a driving source and first and second beam deflectors. The driving source has a rotation shaft and the first and second beam deflectors are coaxially installed on the rotation shaft and respectively deflect and scan beams of light emitted from the first and second light sources. First and second beam correcting units are arranged along the path of light between the deflecting unit and a photoreceptor and respectively correct the beams deflected by the first and second beam deflectors.

摘要翻译： 一种具有第一和第二光源的电子照相彩色打印机的光束扫描装置，以及包括驱动源和第一和第二光束偏转器的偏转单元。 驱动源具有旋转轴，并且第一和第二光束偏转器同轴地安装在旋转轴上，并且分别偏转和扫描从第一和第二光源发射的光束。 第一和第二光束校正单元沿着偏转单元和感光体之间的光路布置，并且分别校正由第一和第二光束偏转器偏转的光束。

公开(公告)号：US6118464A

公开(公告)日：2000-09-12

申请号：US99407

申请日：1998-06-18

申请人： Jae-yong Eum ,  Sung-min cho

发明人： Jae-yong Eum ,  Sung-min cho

IPC分类号： B41J2/44 ,  G02B26/10 ,  G03G15/01 ,  G03G15/04 ,  H04N1/50

CPC分类号： G02B26/106 ,  H04N1/506

摘要： In a beam scanning apparatus of an electrophotographic color printer, at least two beam deflectors, each having a deflection disk consisting of at least two sectors and a driving source for rotating the deflection disk, deflect and scan an incident beam. The deflection disk has a pattern formed thereon for diffracting and scanning the incident beam. A plurality of light sources, arranged between the beam deflector and a photoreceptor, emit light to the deflection disk. A beam path changing unit changes a proceeding path of the beam deflected by the respective beam deflectors to proceed toward the photoreceptor. A beam correcting unit, arranged between the respective beam deflectors and the photoreceptor, corrects the input beam having its path changed by the beam path changing unit.

摘要翻译： 在电子照相彩色打印机的光束扫描装置中，至少两个光束偏转器，每个具有由至少两个扇区组成的偏转盘和用于旋转偏转盘的驱动源，偏转和扫描入射光束。 偏转盘具有形成在其上的图案，用于衍射和扫描入射光束。 布置在光束偏转器和感光体之间的多个光源向偏转盘发光。 光束路径改变单元改变由各个光束偏转器偏转的光束的行进路径以朝向感光体前进。 布置在相应的光束偏转器和感光体之间的光束校正单元校正由光束路径改变单元改变其路径的输入光束。

公开(公告)号：US6018409A

公开(公告)日：2000-01-25

申请号：US88485

申请日：1998-06-02

申请人： Jae-yong Eum ,  Won-hyung Lee ,  Cheol-young Han ,  Gary H. Conners

发明人： Jae-yong Eum ,  Won-hyung Lee ,  Cheol-young Han ,  Gary H. Conners

IPC分类号： B41J2/44 ,  B41J2/385 ,  G02B26/10 ,  H04N1/191 ,  H04N1/50 ,  G02B26/08 ,  G02B5/32

CPC分类号： H04N1/1265 ,  G02B26/106 ,  H04N1/1912 ,  H04N1/506

摘要： A multi-beam scanning apparatus includes at least two optical sources, a beam deflector having a deflection disc with a plurality of sectors for diffracting and transmitting incident beams, and a driving source for rotating the deflection disc, for deflecting and projecting beams emitted from the optical sources. A beam corrector installed along a light path, for correcting the beams deflected by the beam deflector.

摘要翻译： 多光束扫描装置包括至少两个光源，光束偏转器具有偏转盘，该偏转盘具有用于衍射和透射入射光束的多个扇区，以及用于使偏转盘旋转的驱动源，用于偏转和投射从 光源。 沿光路安装的光束校正器，用于校正由光束偏转器偏转的光束。

公开(公告)号：US5953573A

公开(公告)日：1999-09-14

申请号：US84446

申请日：1998-05-27

申请人： Jae-yong Eum

发明人： Jae-yong Eum

IPC分类号： G03G15/01 ,  B41J2/385 ,  G03G15/00 ,  G03G15/10 ,  G03G15/16

CPC分类号： G03G15/1615

摘要： An electrophotographic printer including a backup roller for supporting a photosensitive belt, a pressing roller for pressing a supplied paper, a transfer roller selectively contacting or being separated from the backup roller and the pressing roller while moving forward or backward between the backup roller and the pressing roller, and a driving unit for moving the transfer roller forward and backward. The transfer roller, the backup roller and the pressing roller are easily aligned with accuracy, and the impacts occurring when the rollers contact each other and are separated from each other are made less severe.

摘要翻译： 一种电子照相打印机，包括用于支撑感光带的支撑辊，用于按压供给的纸张的加压辊，在支承辊和按压辊之间向前或向后移动时选择性地与支承辊和加压辊接触或分离的转印辊 辊子和用于使转印辊向前和向后移动的驱动单元。 转印辊，支撑辊和加压辊容易准确地对准，并且当辊彼此接触并彼此分离时发生的冲击变得不那么严重。

公开(公告)号：US5855436A

公开(公告)日：1999-01-05

申请号：US961274

申请日：1997-10-30

申请人： Jae-yong Eum ,  Chang-woo Lee

发明人： Jae-yong Eum ,  Chang-woo Lee

IPC分类号： G02B26/12 ,  F16C17/00 ,  F16C17/02 ,  F16C17/08 ,  F16C17/10 ,  F16C33/10

CPC分类号： F16C33/107 ,  F16C17/08 ,  F16C17/105

摘要： A fluid bearing apparatus having an increased contact area between a body and a bushing and having a compact size. In the fluid bearing apparatus according to the present invention, a body extends from a shaft fixed to a lower bearing bracket in a lengthwise direction, which has a conical groove at one end and a truncated cone at the other end. An upper bushing includes a recess for receiving the one end of the body and having a conical protrusion formed therein. The conical protrusion is inserted into the conical groove of the body. A lower bushing has a recess receiving the other end of the body and a through hole extending through the lower bushing. The shaft is slidably inserted into the through hole. The upper bushing is separately combined with the lower bushing. Accordingly, the bushing which receives the body, may be decreased in volume, so that a motor to which the fluid bearing apparatus is applied, can be reduced in a total size.

摘要翻译： 一种流体轴承装置，其具有在主体和衬套之间增加的接触面积并且具有紧凑的尺寸。 在根据本发明的流体轴承装置中，主体在长度方向上从固定到下轴承托架的轴延伸，该轴在一端具有锥形槽，在另一端具有截锥体。 上套管包括用于容纳主体的一端并且具有形成在其中的锥形突起的凹部。 锥形突起插入到身体的锥形槽中。 下套管具有容纳主体另一端的凹部和延伸穿过下套管的通孔。 轴可滑动地插入通孔中。 上套管与下套管分开组合。 因此，容纳本体的衬套的体积可以减小，从而可以将总体尺寸减小到应用了流体轴承装置的电动机。