Optical scanning device and image forming device

    公开(公告)号:US11480887B2

    公开(公告)日:2022-10-25

    申请号:US17341741

    申请日:2021-06-08

    Abstract: An optical scanning device includes a housing that houses an optical system for generating a light ray for optical scanning, and has a dustproof glass for emitting the light ray to an outside, and a cleaning system that is assembled to the housing and cleans the dustproof glass. The cleaning system includes a cleaning member, and a holder that holds the cleaning member, and with the holder moved in a specified movement direction relative to the dustproof glass, the cleaning member cleans the dustproof glass. The cleaning member includes a cleaner member that is adapted to contact a surface of the dustproof glass, and a pressing member that has a pressing surface for pressing the cleaner member toward the dustproof glass and is formed of an elastic body. In the movement direction, a width of the cleaner member is wider than a width of the pressing surface.

    OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS
    3.
    发明申请
    OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS 有权
    光学扫描装置,图像形成装置

    公开(公告)号:US20150346482A1

    公开(公告)日:2015-12-03

    申请号:US14724717

    申请日:2015-05-28

    Abstract: An optical scanning device includes a light source, a scanning member, a converging lens, a first aperture, a second aperture, and a support member. The first aperture is provided between the converging lens and the scanning member and includes a first opening portion configured to restrict a beam path width in a main scanning direction of the laser beams emitted from the light source. The second aperture is provided between the light source and the converging lens and includes a second opening portion and a cylindrical portion. The second opening portion is configured to restrict a beam path width in a sub scanning direction of the laser beams emitted from the light source, and is formed in the cylindrical portion. The support member includes a cylinder supporting portion that pivotably supports the cylindrical portion of the second aperture.

    Abstract translation: 光学扫描装置包括光源,扫描构件,会聚透镜,第一孔,第二孔和支撑构件。 第一开口设置在会聚透镜和扫描构件之间,并且包括被配置为限制从光源发射的激光束的主扫描方向上的光束路径宽度的第一开口部。 第二孔设在光源和会聚透镜之间,并包括第二开口部分和圆柱形部分。 第二开口部被配置为限制从光源发射的激光的副扫描方向上的光束路径宽度,并且形成在圆筒部中。 支撑构件包括可枢转地支撑第二孔的圆柱形部分的气缸支撑部分。

    Scanning optical apparatus and image forming apparatus
    4.
    发明授权
    Scanning optical apparatus and image forming apparatus 有权
    扫描光学装置和图像形成装置

    公开(公告)号:US08998372B2

    公开(公告)日:2015-04-07

    申请号:US14242604

    申请日:2014-04-01

    Inventor: Shingo Yoshida

    CPC classification number: G03G15/0435

    Abstract: A scanning optical apparatus includes a light beam detection unit, a reference signal generation unit, and a returned light detection unit. The light beam detection unit decides whether the light beam reflected by the reflecting surface of a polygon mirror has entered the BD sensor, through comparison between an output value of the BD sensor and a predetermined first threshold. The reference signal generation unit generates a scan start reference signal in response to the decision that the light beam has entered the BD sensor. The returned light detection unit decides whether the light beam reflected by the reflecting surface has entered the internal light sensor, through comparison between an output value of the internal light sensor and a second threshold corresponding to light beam intensity higher than the intensity of the light beam reflected by the reflecting surface and corresponding to the first threshold.

    Abstract translation: 扫描光学装置包括光束检测单元,参考信号生成单元和返回光检测单元。 光束检测单元通过BD传感器的输出值和预定的第一阈值之间的比较来判定由多面镜的反射面反射的光束是否已经进入BD传感器。 参考信号生成单元响应于光束已经进入BD传感器的判定来生成扫描开始基准信号。 返回光检测单元通过比较内部光传感器的输出值和对应于高于光束强度的光束强度的第二阈值来判定反射面反射的光束是否已经进入内部光传感器 由反射面反射并对应于第一阈值。

    Scanning optical apparatus and image forming apparatus
    5.
    发明授权
    Scanning optical apparatus and image forming apparatus 有权
    扫描光学装置和图像形成装置

    公开(公告)号:US08896650B1

    公开(公告)日:2014-11-25

    申请号:US14267388

    申请日:2014-05-01

    Inventor: Shingo Yoshida

    CPC classification number: G02B26/127 G03G13/04 G03G15/043

    Abstract: The calculation unit calculates the time interval between the time at detecting the light beam reflected by the reflective surface of the rotatory polyhedron incident on the BD sensor by the light beam detecting unit and the time at detecting the light beam reflected by the reflective surface incident on the optical sensor in the light source by the return light beam detecting unit. The scan adjusting unit adjusts the luminescence time of the light source for scanning the light beam on the surface to be scanned based on the time interval calculated by the calculation unit.

    Abstract translation: 计算单元计算由光束检测单元检测由BD传感器入射的旋转多面体的反射表面反射的光束的时间与检测由入射到其上的反射面反射的光束的时间之间的时间间隔 光源中的光学传感器由返回光束检测单元。 扫描调整单元基于由计算单元计算的时间间隔来调整用于扫描待扫描表面上的光束的光源的发光时间。

    Scanning lens, optical scanning device and image forming apparatus using same
    6.
    发明授权
    Scanning lens, optical scanning device and image forming apparatus using same 有权
    扫描透镜,光学扫描装置和使用其的图像形成装置

    公开(公告)号:US08730512B2

    公开(公告)日:2014-05-20

    申请号:US13772381

    申请日:2013-02-21

    CPC classification number: G02B26/10 G02B26/124 G02B26/125 G02B27/4227

    Abstract: An optical scanning device includes a light source which emits a light beam, a deflector, an incident optical system and one scanning lens. The deflector reflects and deflects/scans the light beam emitted from the light source. The scanning lens includes a first face facing the deflector and a second face on an opposite side to the first face, and performs imaging of the deflected/scanned light beam on a surface to be scanned. In a main scanning cross section, when an angle relative to an optical axis of an incident light beam which enters the scanning lens from the first face is θin, and an angle relative to an optical axis of an outgoing light beam which is output from the second face toward the surface to be scanned is θout, in an entire scanning region, a condition of 0.9

    Abstract translation: 光学扫描装置包括发射光束的光源,偏转器,入射光学系统和一个扫描透镜。 偏转器反射和偏转/扫描从光源发射的光束。 扫描透镜包括面向偏转器的第一面和与第一面相反侧的第二面,并且在被扫描的表面上进行偏转/扫描光束的成像。 在主扫描横截面中,当相对于从第一面进入扫描透镜的入射光束的光轴的角度为相对于输出的出射光束的光轴的角度 从第二面朝向要扫描的表面,在整个扫描区域中,满足0.9 <&amp;

    OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS, APERTURE FIXING METHOD
    8.
    发明申请
    OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS, APERTURE FIXING METHOD 有权
    光学扫描装置,图像形成装置,孔固定方法

    公开(公告)号:US20160282750A1

    公开(公告)日:2016-09-29

    申请号:US15079564

    申请日:2016-03-24

    Abstract: n optical scanning device includes a scanning member, a plurality of light sources, a first reflection mirror, and a second reflection mirror. The scanning member scans incident laser beams in a predetermined main scanning direction. The plurality of light sources emit the laser beams from positions that are different along a sub scanning direction that is perpendicular to an optical axis direction of the laser beams and the main scanning direction. The first reflection mirror is inclined around the main scanning direction as a rotation axis, is inclined around the sub scanning direction as another rotation axis, and reflects the laser beams emitted from the light sources. The second reflection mirror is inclined around the main scanning direction as a rotation axis, is inclined around the sub scanning direction as another rotation axis, and reflects the laser beams reflected by the first reflection mirror toward the scanning member.

    Abstract translation: n光扫描装置包括扫描构件,多个光源,第一反射镜和第二反射镜。 扫描构件沿预定的主扫描方向扫描入射的激光束。 多个光源从与激光的光轴方向垂直的副扫描方向和主扫描方向不同的位置发射激光。 第一反射镜围绕主扫描方向作为旋转轴倾斜,围绕副扫描方向作为另一旋转轴倾斜,并且反射从光源发射的激光束。 第二反射镜围绕主扫描方向作为旋转轴倾斜,围绕副扫描方向作为另一旋转轴倾斜,并且将由第一反射镜反射的激光束反射到扫描构件。

    OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS USING SAME
    9.
    发明申请
    OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS USING SAME 有权
    光学扫描装置和使用它的图像形成装置

    公开(公告)号:US20150092001A1

    公开(公告)日:2015-04-02

    申请号:US14496143

    申请日:2014-09-25

    Abstract: An optical scanning device includes first and second light sources, a polygon mirror, first and second scanning lenses, first and second reflecting mirrors, and an adjusting mechanism for adjusting the posture of the first reflecting mirror. The adjusting mechanism adjusts the posture of the first reflecting mirror using a predetermined first adjustment amount so that a first scanning line drawn by a first light beam to scan a first circumferential surface and a second scanning line drawn by a second light beam to scan a second circumferential surface are parallel when a drum rotation speed is a predetermined first speed, and adjusts the posture of the first reflecting mirror using a predetermined second adjustment amount different from the first adjustment amount and capable of making the first and second scanning lines parallel at a second speed different from the first speed when the drum rotation speed is the second speed.

    Abstract translation: 光学扫描装置包括第一和第二光源,多面镜,第一和第二扫描透镜,第一和第二反射镜以及用于调节第一反射镜的姿势的调节机构。 调整机构使用预定的第一调整量调整第一反射镜的姿势,使得由第一光束画出的第一扫描线扫描由第二光束画出的第一圆周面和第二扫描线,以扫描第二光束 当滚筒旋转速度为预定的第一速度时,圆周表面平行,并且使用与第一调节量不同的预定的第二调节量来调整第一反射镜的姿势,并且能够使第一和第二扫描线平行于第二 速度与第一速度不同时,滚筒转速为第二速度。

    Optical scanning device and image forming apparatus therewith
    10.
    发明授权
    Optical scanning device and image forming apparatus therewith 有权
    光学扫描装置及其成像装置

    公开(公告)号:US08908002B1

    公开(公告)日:2014-12-09

    申请号:US14284002

    申请日:2014-05-21

    CPC classification number: B41J2/47 B41J2/473 G02B26/127

    Abstract: An optical scanning device has a light deflector deflecting a light beam from a light source, a synchronization detection sensor determining timing of starting scanning in main scanning direction based on timing of detecting the light beam scanned in main scanning direction by the light deflector, and a pre-sensor imaging optical system imaging the light beam reflected from the light deflector on the synchronization detection sensor. The pre-sensor imaging optical system moves the imaging position of the light beam on the synchronization detection sensor in a direction making the timing of detecting the light beam earlier or later according to whether variation in temperature causes the magnification of the scanning optical system in main scanning direction to increase or decrease respectively.

    Abstract translation: 光学扫描装置具有使来自光源的光束偏转的光偏转器,基于通过光偏转器检测沿主扫描方向扫描的光束的定时来确定在主扫描方向上开始扫描的定时的同步检测传感器,以及 预传感器成像光学系统对来自同步检测传感器上的光偏转器的光束进行成像。 预传感器成像光学系统将光束的成像位置沿同步检测传感器的方向移动,根据温度的变化是否使主要的扫描光学系统的放大倍数成为检测光束的时间的方向 扫描方向分别增减。

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