Exposure device, image forming apparatus and method for operating exposure device
    1.
    发明申请
    Exposure device, image forming apparatus and method for operating exposure device 有权
    曝光装置,图像形成装置和操作曝光装置的方法

    公开(公告)号:US20080074704A1

    公开(公告)日:2008-03-27

    申请号:US11904638

    申请日:2007-09-27

    IPC分类号: H04N1/21

    摘要: An exposure device which is low in price and has a simple structure. An exposure device for exposing a photoreceptor, includes: a plurality of data electrodes disposed for each of a plurality of columns parallel to a moving direction of the photoreceptor; a plurality of selected electrodes disposed for each of a plurality of rows perpendicular to each of the data electrodes; a plurality of light emitting element arrays which include a plurality of light emitting elements disposed near intersection points between the data electrodes and the selected electrodes in intersections between the data electrodes and the selected electrodes, the plurality of light emitting elements being linearly arrayed; a driving signal output circuit for generating a driving signal based on an image signal to supply the driving signal to the light emitting element arrays; and a column selection unit for switching the light emitting element arrays to be selected based on a lighting situation of each of the light emitting elements of each of the light emitting element arrays.

    摘要翻译: 曝光装置价格低廉,结构简单。 用于曝光感光体的曝光装置包括:为平行于感光体的移动方向的多个列设置的多个数据电极; 多个选择的电极,其设置用于垂直于每个数据电极的多个行中的每一行; 多个发光元件阵列,其包括设置在数据电极与所选择的电极之间的交点附近的数据电极与所选择的电极之间的交点处的多个发光元件,所述多个发光元件线性排列; 驱动信号输出电路,用于基于图像信号产生驱动信号,以将驱动信号提供给发光元件阵列; 以及列选择单元,用于基于每个发光元件阵列的每个发光元件的点亮情况来切换要选择的发光元件阵列。

    Exposure device, image forming apparatus and method for operating exposure device
    2.
    发明授权
    Exposure device, image forming apparatus and method for operating exposure device 有权
    曝光装置,图像形成装置和操作曝光装置的方法

    公开(公告)号:US08446445B2

    公开(公告)日:2013-05-21

    申请号:US11904638

    申请日:2007-09-27

    IPC分类号: B41J2/435 B41J2/45 B41J2/47

    摘要: An exposure device for exposing a photoreceptor, includes: data electrodes disposed for each of a plurality of columns parallel to a moving direction of the photoreceptor; selected electrodes disposed for each of a plurality of rows perpendicular to each of the data electrodes; light emitting element arrays including light emitting elements disposed near intersection points between the data electrodes and the selected electrodes in intersections between the data electrodes and the selected electrodes, the light emitting elements being linearly arrayed; a driving signal output circuit for generating a driving signal based on an image signal to supply the driving signal to the light emitting element arrays; and a column selection unit for switching the light emitting element arrays to be selected based on a lighting situation of each of the light emitting elements of each of the light emitting element arrays.

    摘要翻译: 用于曝光感光体的曝光装置包括:为平行于感光体的移动方向的多个列设置的数据电极; 针对垂直于每个数据电极的多个行中的每一个设置选择的电极; 发光元件阵列,包括设置在数据电极与所选择的电极之间的交点附近的数据电极和所选择的电极之间的交叉点的发光元件,发光元件线性排列; 驱动信号输出电路,用于基于图像信号产生驱动信号,以将驱动信号提供给发光元件阵列; 以及列选择单元,用于基于每个发光元件阵列的每个发光元件的点亮情况来切换要选择的发光元件阵列。

    LIGHT-EMITTING HEAD AND PRINTING APPARATUS USING THE SAME
    3.
    发明申请
    LIGHT-EMITTING HEAD AND PRINTING APPARATUS USING THE SAME 审中-公开
    使用发光头和打印装置

    公开(公告)号:US20090225150A1

    公开(公告)日:2009-09-10

    申请号:US12396681

    申请日:2009-03-03

    IPC分类号: B41J2/455

    CPC分类号: B41J2/45

    摘要: A light-emitting head of a printing apparatus includes luminescent elements on a substrate. Each of the luminescent elements includes micro-light-emitting portions. A direction of a perpendicular bisector of a straight line joining centers of each micro-light-emitting portion of each luminescent element and another micro-light-emitting portion of the same luminescent element which is nearest to the each micro-light-emitting portion is off a luminescent element adjacent to the luminescent element.

    摘要翻译: 印刷装置的发光头包括在基板上的发光元件。 每个发光元件包括微发光部分。 将每个发光元件的每个微发光部分的中心与最靠近每个微发光部分的相同发光元件的另一个微发光部分连接的直线的垂直二等分线的方向是 关闭与发光元件相邻的发光元件。

    Exposing device and image forming apparatus
    4.
    发明授权
    Exposing device and image forming apparatus 有权
    曝光装置和图像形成装置

    公开(公告)号:US07898562B2

    公开(公告)日:2011-03-01

    申请号:US12204130

    申请日:2008-09-04

    IPC分类号: B41J2/47

    摘要: An exposing device which radiates light on a photoconductor drum which rotates, thereby executing exposure, includes a light-emitting element unit including light-emitting element having an emission area which emits light that is generated, the emission area having a rectangular shape with a long side along a direction perpendicular to a rotational direction of the photoconductor drum, and a short side along the rotational direction, a lens unit which focuses the light, which is emitted from the emission area, on a peripheral surface of the photoconductor drum, thereby executing exposure, and forming on the peripheral surface a beam spot, and a driving circuit which causes the light-emitting element to emit light, thereby making a width of the shape of the beam spot in a direction along the rotational direction close to a width of the beam spot in a direction perpendicular to the rotational direction.

    摘要翻译: 一种曝光装置,其在旋转的感光鼓上照射光,从而进行曝光,包括发光元件单元,其包括具有发射所产生的光的发射区域的发光元件,发光区域具有长的矩形形状 一侧沿着与感光鼓的旋转方向垂直的方向和沿着旋转方向的短边;透镜单元,其将从发光区域发射的光聚焦在感光鼓的外周面上,由此执行 曝光和在外围表面上形成光斑,以及使发光元件发光的驱动电路,从而使光束的形状沿着旋转方向的方向的宽度接近宽度 光束在与旋转方向垂直的方向上。

    Exposure apparatus, method for correcting emission quantity of exposure apparatus, and image forming apparatus
    5.
    发明授权
    Exposure apparatus, method for correcting emission quantity of exposure apparatus, and image forming apparatus 有权
    曝光装置,曝光装置的排出量校正方法以及图像形成装置

    公开(公告)号:US08144176B2

    公开(公告)日:2012-03-27

    申请号:US12749990

    申请日:2010-03-30

    IPC分类号: B41J2/435

    摘要: An exposure apparatus has a plurality of light emitting elements and a light quantity measuring circuit, sets a reference light quantity based on a plurality of emission quantities when the plurality of light emitting elements emit light in accordance with a specific gradation signal for a predetermined emission time, generates a plurality of corrected gradation signals by correcting the gradation signal based on the differences between the reference light quantity and the plurality of emission quantities so that the plurality of emission quantities of the plurality of light emitting elements become close to the reference light quantity, and corrects the emission time of the plurality of light emitting elements so that the plurality of emission quantities of the plurality of light emitting elements become close to the target reference light quantity set in accordance with image data.

    摘要翻译: 曝光装置具有多个发光元件和光量测量电路,当多个发光元件根据特定灰度信号发光预定发光时间时,基于多个发光量设定基准光量 通过基于参考光量与多个发光量之间的差校正灰度信号,使得多个发光元件的多个发光量变得接近参考光量,生成多个校正灰度信号, 并且校正多个发光元件的发光时间,使得多个发光元件的多个发光量变得接近于根据图像数据设置的目标参考光量。

    Exposing device and image forming apparatus
    7.
    发明授权
    Exposing device and image forming apparatus 有权
    曝光装置和图像形成装置

    公开(公告)号:US08199182B2

    公开(公告)日:2012-06-12

    申请号:US13013703

    申请日:2011-01-25

    IPC分类号: B41J2/47

    摘要: An exposing device which radiates light on a photoconductor drum which rotates, thereby executing exposure, includes a light-emitting element unit including light-emitting element having an emission area which emits light that is generated, the emission area having a rectangular shape with a long side along a direction perpendicular to a rotational direction of the photoconductor drum, and a short side along the rotational direction, a lens unit which focuses the light, which is emitted from the emission area, on a peripheral surface of the photoconductor drum, thereby executing exposure, and forming on the peripheral surface a beam spot, and a driving circuit which causes the light-emitting element to emit light, thereby making a width of the shape of the beam spot in a direction along the rotational direction close to a width of the beam spot in a direction perpendicular to the rotational direction.

    摘要翻译: 一种曝光装置,其在旋转的感光鼓上照射光,从而进行曝光,包括发光元件单元,其包括具有发射所产生的光的发射区域的发光元件,发光区域具有长的矩形形状 一侧沿着与感光鼓的旋转方向垂直的方向和沿着旋转方向的短边;透镜单元,其将从发光区域发射的光聚焦在感光鼓的外周面上,由此执行 曝光和在外围表面上形成光斑,以及使发光元件发光的驱动电路,从而使光束的形状沿着旋转方向的方向的宽度接近宽度 光束在与旋转方向垂直的方向上。

    Optical writing head driving device
    10.
    发明授权
    Optical writing head driving device 失效
    光写头驱动装置

    公开(公告)号:US06215511B1

    公开(公告)日:2001-04-10

    申请号:US09102398

    申请日:1998-06-22

    IPC分类号: B41J245

    摘要: A printer controller 41 sets compensation values, representing the positional deviations of LED array chips 31, in a delay circuit section 68 via shift register 61 and a latch circuit 63. The shift register 69 sequentially acquires bit map data from the printer controller 41, and supplies the acquired bit map data to an AND gate 66 through the latch circuit 62. Upon receiving a strobe signal from the printer controller 41, the delay circuit section 68 supplies the received strobe signal to the AND gate 66 after a delay time corresponding to a preset compensation value has lapsed. The AND gate 66 generates drive signals each being the logical product of the input bit map data and the strobe signal, and supplies them to the LED array chips 31 through a buffer 67. The LED array chips 31 make LEDs emit light at the timings corresponding to the positional deviations so that images are formed without a positional deviation. At least one of the LED array chips is unaligned with adjacent ones of the LED array chips and preset compensation values are obtained by interpolation based on detected positional deviations of sampled ones of the LED array chips.

    摘要翻译: 打印机控制器41通过移位寄存器61和锁存电路63将表示LED阵列芯片31的位置偏差的补偿值设置在延迟电路部分68中。移位寄存器69从打印机控制器41顺序地获取位图数据, 通过锁存电路62将获取的比特图数据提供给与门66.一旦从打印机控制器41接收到选通信号,延迟电路部分68将接收到的选通信号提供给与门66,延迟时间对应于 预设补偿值已经失效。 与门66产生各自为输入位图数据和选通信号的逻辑积的驱动信号,并通过缓冲器67将它们提供给LED阵列芯片31.LED阵列芯片31使LED在对应的定时发光 到位置偏差,使得形成没有位置偏差的图像。 至少一个LED阵列芯片与相邻的LED阵列芯片不对齐,并且通过基于检测到的LED阵列芯片中的采样的位置偏差的内插来获得预设的补偿值。