Image reading apparatus and image forming apparatus including the same
    3.
    发明授权
    Image reading apparatus and image forming apparatus including the same 有权
    图像读取装置和包括该图像读取装置的图像形成装置

    公开(公告)号:US08446648B2

    公开(公告)日:2013-05-21

    申请号:US12916689

    申请日:2010-11-01

    IPC分类号: H04N1/04 H04N1/407

    摘要: In one embodiment, an image reading apparatus has a light source configured with a plurality of light-emitting elements disposed in a row in a main scanning direction that irradiate light toward an original, and a photoelectric conversion element that receives light reflected from the original, an output light amount from the light-emitting elements can be adjusted, and a state of bright spots due to repetition of light-dark in the main scanning direction on a light irradiation face of the original due to the plurality of light-emitting elements is determined, and the output light amount from the light-emitting elements is adjusted based on the determination result of the state of the bright spots.

    摘要翻译: 在一个实施例中,图像读取装置具有:光源,被配置为沿着主扫描方向排列成一行的朝向原稿照射光的多个发光元件;以及光电转换元件,其接收从原稿反射的光, 可以调节来自发光元件的输出光量,并且由于由于多个发光元件而导致的原稿的光照射面上的主扫描方向上的重复亮度的亮点的状态是 并且基于亮点的状态的确定结果来调整来自发光元件的输出光量。

    Document read apparatus and image forming apparatus
    4.
    发明授权
    Document read apparatus and image forming apparatus 有权
    文件读取装置和图像形成装置

    公开(公告)号:US08228568B2

    公开(公告)日:2012-07-24

    申请号:US12469038

    申请日:2009-05-20

    IPC分类号: H04N1/04 H04N1/46

    摘要: The document read apparatus according to the present invention has a light source unit that includes a linear first light and second light sources, both light sources aligned parallel to the sub scanning direction (moving direction). When the light source unit is scanning a book document in a second region shifted toward a side of the first light source from a center position for emitting light to the center of the document, a light quantity of the second light source becomes larger than a light quantity of the first light source. When the light source unit is scanning the book document in a third region shifted toward a side of the second light source from the center position, the light quantity of the first light source becomes larger than the light quantity of the second light source. A sum of both light quantities is controlled to be constant.

    摘要翻译: 根据本发明的文件读取装置具有光源单元,其包括线性第一光和第二光源,两个光源平行于副扫描方向(移动方向)排列。 当光源单元从用于发射光的中心位置到文档的中心的第二区域中扫描第二区域中的书本文档时,第二光源的光量变得大于光 第一光源的数量。 当光源单元从从中心位置向第二光源侧移动的第三区域扫描书本文档时,第一光源的光量变得大于第二光源的光量。 将两个光量的总和控制为恒定。

    Document reading apparatus and method of calculating position adjustment amount
    5.
    发明授权
    Document reading apparatus and method of calculating position adjustment amount 有权
    文件阅读装置和计算位置调整量的方法

    公开(公告)号:US07688483B2

    公开(公告)日:2010-03-30

    申请号:US11829158

    申请日:2007-07-27

    IPC分类号: H04N1/04

    摘要: A document reading apparatus including: a first scanning section that moves in a scanning direction along a document surface, for supporting a first mirror to reflect an image of a document in a direction parallel to the scanning direction; an intermediate scanning section that moves synchronous with the first scanning section, for supporting an intermediate mirror to reflect the image of the document reflected by the first mirror in a direction opposite from an incident direction of the image; a reading section including an imaging sensor for reading the image of a scanned document and a focusing lens for focusing the image of the document reflected by the intermediate mirror on the imaging sensor; a driving wire for pulling the first scanning section in the scanning direction; a supporting pulley for supporting the driving wire at a starting side for scanning or at an ending side for scanning; a position adjustment section capable of adjusting a position of the supporting pulley in its axial direction; a control section for performing such control that the image for adjustment is read by the reading section when the first scanning section is located at a first position and at a second position in the scanning direction, and an adjustment amount of the position adjustment section is calculated based on a readout result of the image; and an output section for outputting the calculated adjustment amount.

    摘要翻译: 一种文件读取装置,包括:第一扫描部,其沿文件表面沿扫描方向移动,用于支撑第一反射镜以在与扫描方向平行的方向上反射原稿的图像; 中间扫描部,其与第一扫描部同步移动,用于支撑中间反射镜,以反射与第一反射镜反射的文件的图像在与图像的入射方向相反的方向上; 读取部分,包括用于读取扫描文档的图像的成像传感器和用于将由中间反射镜反射的原稿的图像聚焦在成像传感器上的聚焦透镜; 用于沿扫描方向拉动第一扫描部分的驱动线; 用于在用于扫描的起始侧支撑驱动线的支撑皮带轮或用于扫描的终止侧; 位置调整部,其能够调整所述支撑皮带轮的轴向位置; 控制部分,用于当第一扫描部分位于扫描方向上的第一位置和第二位置时,由读取部分读取调节图像,并且计算位置调整部分的调整量 基于图像的读出结果; 以及输出部,用于输出计算出的调整量。

    DOCUMENT READING APPARATUS AND METHOD OF CALCULATING POSITION ADJUSTMENT AMOUNT
    6.
    发明申请
    DOCUMENT READING APPARATUS AND METHOD OF CALCULATING POSITION ADJUSTMENT AMOUNT 有权
    文件读取装置和计算位置调整金额的方法

    公开(公告)号:US20080024839A1

    公开(公告)日:2008-01-31

    申请号:US11829158

    申请日:2007-07-27

    IPC分类号: H04N1/028

    摘要: A document reading apparatus including: a first scanning section that moves in a scanning direction along a document surface, for supporting a first mirror to reflect an image of a document in a direction parallel to the scanning direction; an intermediate scanning section that moves synchronous with the first scanning section, for supporting an intermediate mirror to reflect the image of the document reflected by the first mirror in a direction opposite from an incident direction of the image; a reading section including an imaging sensor for reading the image of a scanned document and a focusing lens for focusing the image of the document reflected by the intermediate mirror on the imaging sensor; a driving wire for pulling the first scanning section in the scanning direction; a supporting pulley for supporting the driving wire at a starting side for scanning or at an ending side for scanning; a position adjustment section capable of adjusting a position of the supporting pulley in its axial direction; a control section for performing such control that the image for adjustment is read by the reading section when the first scanning section is located at a first position and at a second position in the scanning direction, and an adjustment amount of the position adjustment section is calculated based on a readout result of the image; and an output section for outputting the calculated adjustment amount.

    摘要翻译: 一种文件读取装置,包括:第一扫描部,其沿文件表面沿扫描方向移动,用于支撑第一反射镜以在与扫描方向平行的方向上反射原稿的图像; 中间扫描部,其与第一扫描部同步移动,用于支撑中间反射镜,以反射与第一反射镜反射的文件的图像在与图像的入射方向相反的方向上; 读取部分,包括用于读取扫描文档的图像的成像传感器和用于将由中间反射镜反射的原稿的图像聚焦在成像传感器上的聚焦透镜; 用于沿扫描方向拉动第一扫描部分的驱动线; 用于在用于扫描的起始侧支撑驱动线的支撑皮带轮或用于扫描的终止侧; 位置调整部,其能够调整所述支撑皮带轮的轴向位置; 控制部分,用于当第一扫描部分位于扫描方向上的第一位置和第二位置时,由读取部分读取调节图像,并且计算位置调整部分的调整量 基于图像的读出结果; 以及输出部,用于输出计算出的调整量。