公开(公告)号：US20240027749A1

公开(公告)日：2024-01-25

申请号：US18353178

申请日：2023-07-17

申请人： Konica Minolta Inc.

发明人： Akira TANIYAMA ,  Ryo HASEGAWA ,  Takahiro MATSUO

IPC分类号： G02B26/12 ,  G02B26/08 ,  G03G15/04

CPC分类号： G02B26/124 ,  G02B26/0816 ,  G03G15/0409

摘要： An optical device includes: an optical element having a first surface and a second surface; a first seat surface member that abuts on the first surface of the optical element; a first pressing member that abuts on the second surface of the optical element at a position facing the first seat surface member via the optical element, and press the optical element against the first seat surface member; an adjustment member that abuts on the second surface of the optical element at a position different from the first pressing member, and displaces the abutment position to adjust a posture of the optical element; and a second pressing member that abuts on the first surface of the optical element at a position facing the adjustment member via the optical element, and applies a pressing force to the abutment position to press the optical element against the adjustment member.

公开(公告)号：US20200012207A1

公开(公告)日：2020-01-09

申请号：US16439156

申请日：2019-06-12

申请人： Konica Minolta, Inc.

发明人： Ryo HASEGAWA ,  Hajime TANIGUCHI

IPC分类号： G03G15/043 ,  G02B26/12 ,  G03G15/04 ,  G03G21/20

摘要： In an optical scanning device, a housing has a structure divided into an upper stage and a lower stage by a mounting plate on which a deflector, a first optical system and a second optical system are mounted. A first optical system reflection mirror and a second optical system reflection mirror are mounted in the other of the upper stage and the lower stage in which the deflector is not mounted. Each of the first optical system and the second optical system is disposed across a region including the upper stage and the lower stage. The first optical system reflection mirror and the second optical system reflection mirror are disposed with the deflector located therebetween. The first optical system reflection mirror is disposed on a side of the second optical system, and the second optical system reflection mirror is disposed on a side of the first optical system.

公开(公告)号：US20160187805A1

公开(公告)日：2016-06-30

申请号：US14972719

申请日：2015-12-17

申请人： KONICA MINOLTA, INC.

发明人： Ryo HASEGAWA

IPC分类号： B41J2/385

CPC分类号： G03G15/043

摘要： An image forming device scans and exposes a photoreceptor with a luminous flux by a light scanning device, which includes a polygon mirror that deflects the luminous flux and scans the photoreceptor in a main scanning direction, a correction unit that corrects a scanning position of the luminous flux in the main scanning direction such that the scanning position of the luminous flux coincides with each reference position, and a position deviation detection unit that detects the deviation amount of the scanning position of the luminous flux in a sub scanning direction. The correction unit corrects the scanning position of the luminous flux in the main scanning direction such that a screen line with an aimed screen angle is formed by scanning with the luminous flux whose scanning position in the sub scanning direction has deviated by the deviation amount detected by the position deviation detection unit.

摘要翻译： 一种图像形成装置通过光扫描装置扫描并曝光具有光束的感光体，该光扫描装置包括使主光束方向偏转光束并扫描感光体的多面镜，修正单元，其校正发光体的扫描位置 在主扫描方向上的磁通量使得光通量的扫描位置与每个基准位置一致;以及位置偏差检测单元，其检测在副扫描方向上的光通量的扫描位置的偏差量。 校正单元校正主扫描方向上的光束的扫描位置，使得通过用副扫描方向的扫描位置偏离了由 位置偏差检测单元。

公开(公告)号：US20150277270A1

公开(公告)日：2015-10-01

申请号：US14671378

申请日：2015-03-27

申请人： Konica Minolta, Inc.

发明人： Ryo HASEGAWA ,  Katsuyuki HIRATA

IPC分类号： B41J2/385

CPC分类号： G03G15/043 ,  G03G15/5033

摘要： According to an image forming apparatus and an exposure position adjusting method of one aspect of the present invention, an exposure section scans a plurality of light beams to form a plurality of electrostatic latent images periodically along a main-scanning direction of the photoreceptor at a predetermined pitch in a sub-scanning direction of the photoreceptor. Next, a surface potential detecting section detects electric potentials of the plurality of electrostatic latent images formed on the surface of the photoreceptor, along the main-scanning direction. Furthermore, a controller calculates exposure timings by the plurality of light beams in the exposure section on the basis of a detection result by the surface potential detecting section.

摘要翻译： 根据本发明的一个方面的图像形成装置和曝光位置调整方法，曝光部分以预定的方式沿着感光体的主扫描方向周期性地扫描多个光束以形成多个静电潜像 在感光体的副扫描方向上的间距。 接下来，表面电位检测部检测沿着主扫描方向形成在感光体的表面上的多个静电潜像的电位。 此外，控制器基于表面电位检测部分的检测结果来计算曝光部分中的多个光束的曝光定时。

公开(公告)号：US20200241440A1

公开(公告)日：2020-07-30

申请号：US16735772

申请日：2020-01-07

申请人： Konica Minolta, Inc.

发明人： Ryo HASEGAWA ,  Takahiro MATSUO ,  Hajime TANIGUCHI ,  Atsushi NAGAOKA

IPC分类号： G03G15/04 ,  G03G15/043

摘要： An optical writing device includes: an image carrier; an exposer that exposes a curved surface of the image carrier; and a control circuit that controls the exposer, wherein the exposer includes a plurality of light-emitting element groups having different positional relationships from one another with the image carrier, and has a configuration that is adjusted in accordance with at least one of an angle at which light reaching the curved surface of the image carrier from each light-emitting element group enters the image carrier, and a distance of each light-emitting element group from the image carrier.

公开(公告)号：US20180227456A1

公开(公告)日：2018-08-09

申请号：US15878170

申请日：2018-01-23

申请人： Konica Minolta, Inc.

发明人： Ryo HASEGAWA ,  Hajime TANIGUCHI

IPC分类号： H04N1/028 ,  G03G15/20 ,  G02B27/09 ,  G03G15/02 ,  G03G15/16

摘要： An optical scanning device has a housing in which a duct surrounds a space from the deflector and its circumference to an outlet in insulation from the optical system, and guides gas from an inlet to the space. A positioning member is shaped as a pillar that protrudes from the floor of the duct towards the deflector and has a tip to contact with the deflector to locate the rotation axis of the polygon mirror at a position relative to the housing. The positioning member further limits a clearance between an outer surface of the deflector and the floor to secure therein a flow path of the gas.

公开(公告)号：US20180113299A1

公开(公告)日：2018-04-26

申请号：US15729032

申请日：2017-10-10

申请人： Konica Minolta, Inc.

发明人： Ryo HASEGAWA

IPC分类号： B41J2/385 ,  G02B26/12 ,  G02B7/02

CPC分类号： G02B26/125 ,  G02B7/028 ,  G02B26/121 ,  G03G15/04072 ,  G03G15/0409

摘要： A light beam scanning device deflecting, by using a rotating polygon mirror, a light beam emitted from a light source and condensing, by using a scanning lens, the deflected light beam onto a scanned surface. The light beam scanning device includes: a base made of a metal or a resin; a motor unit attached to the base and rotating the polygon mirror; a holding member holding the scanning lens; and one or more fixing members disposed between the base and the holding member, fixing the holding member to the base with the scanning lens spaced away from the base. In the light beam scanning device, the base has, between at least one of the fixing members and the motor unit, a penetrating hole or groove around which heat transmitted from the motor unit through the base to the fixing member passes.