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    Image forming apparatus
    1.
    发明授权
    Image forming apparatus 有权

    公开(公告)号：US12043028B2

    公开(公告)日：2024-07-23

    申请号：US17949820

    申请日：2022-09-21

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Hiroomi Nakatsuji

    IPC: B41J2/045 ,  H04N1/00 ,  H04N1/031

    CPC classification number: B41J2/0451 ,  B41J2/04586 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00082 ,  H04N1/031

    Abstract: In an image forming apparatus, a recording head ejects ink corresponding to an image to be printed, using arranged nozzles. A control unit determines nozzles corresponding to the image to be printed, correspondingly to a position of a print sheet, and causes the recording head to eject ink from the nozzles. A correction processing performs a correction process corresponding to each of ink ejection malfunction positions in the image. Further, the correction processing unit (a) sets the ink ejection malfunction positions as targets of the correction process in advance, and (b) excludes from the targets on the basis of a sheet size of the print sheet an ink ejection malfunction position corresponding to a nozzle that is not used for the print sheet among nozzles corresponding to the plural ink ejection malfunction positions and thereafter performs the correction process for the targets.

    Image reading apparatus and image forming apparatus
    3.
    发明授权
    Image reading apparatus and image forming apparatus 有权

    公开(公告)号：US09888148B2

    公开(公告)日：2018-02-06

    申请号：US15250694

    申请日：2016-08-29

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Hayato Hirayama

    IPC: H04N1/04 ,  H04N1/401 ,  H04N1/031

    CPC classification number: H04N1/401 ,  H04N1/031 ,  H04N1/4005 ,  H04N2201/0094

    Abstract: An image reading apparatus includes a reference signal output portion, an image sensor, and an analog front end. The reference signal output portion is capable of outputting a first reference signal and a second reference signal, and changing difference in level between the first reference signal and the second reference signal according to a reference level control signal that is inputted. The image sensor outputs a primary image signal that is an analog signal in which a reference level is a level of the first reference signal that is inputted. The analog front end subjects the primary image signal to offset adjustment according to levels of the second reference signal and an offset control signal that are inputted, and further amplifies a signal having been subjected to the offset adjustment, to output a secondary image signal.

    Image reader and image forming apparatus using same using multiple image sensors and which corrects misalignment
    4.
    发明授权
    Image reader and image forming apparatus using same using multiple image sensors and which corrects misalignment 失效
    图像读取器和图像形成装置，使用多个图像传感器并且校正不对准

    公开(公告)号：US08670163B2

    公开(公告)日：2014-03-11

    申请号：US13115646

    申请日：2011-05-25

    Applicant: Hiroshi Takahashi

    Inventor： Hiroshi Takahashi

    IPC: H04N1/04

    CPC classification number: H04N1/031 ,  H04N1/0473 ,  H04N1/12 ,  H04N1/193 ,  H04N1/1933 ,  H04N1/1938 ,  H04N2201/04703 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04737 ,  H04N2201/04786 ,  H04N2201/04791

    Abstract: An image reader includes an original transport device to transport an original, and an image reading device including multiple image sensor arrays having image reading areas staggered relative to the transport direction of the original in such a manner that the multiple image sensor arrays are offset at least partially, in the main scanning direction of the original with a predetermined gap therebetween in the transport direction. There is at least one original transport speed detector to detect the transport speed of the original transported by the original transport device, a storing device to store a reference delay time period which is between when the image sensor arrays on the upstream side read a predetermined position relative to the transport direction and when the image sensor arrays on the downstream side read the predetermined position. Further, there is a misalignment amount calculator, and an image synthesizer to synthesize an image read by the image sensor arrays.

    Abstract translation: 图像读取器包括用于传送原稿的原始传送装置和包括多个图像传感器阵列的图像读取装置，所述多个图像传感器阵列具有相对于原稿的传送方向交错的图像读取区域，使得多个图像传感器阵列至少偏移 部分地在原稿的主扫描方向上在输送方向上具有预定的间隙。 存在至少一个原始传送速度检测器，用于检测由原始传送装置传送的原稿的传送速度;存储装置，用于存储在上游侧的图像传感器阵列读取预定位置时的参考延迟时间段 相对于传送方向，并且当下游侧的图像传感器阵列读取预定位置时。 此外，存在未对准量计算器和用于合成由图像传感器阵列读取的图像的图像合成器。

    Image-reader
    5.
    发明授权
    Image-reader 有权
    图像阅读器

    公开(公告)号：US08614841B2

    公开(公告)日：2013-12-24

    申请号：US13074147

    申请日：2011-03-29

    Applicant: Hideyuki Kusunoki

    Inventor： Hideyuki Kusunoki

    IPC: H04N1/04 ,  H04N1/46 ,  H04N1/21 ,  H04N1/40 ,  H04N7/12 ,  G06F15/00 ,  H03M7/46 ,  B41J2/435 ,  B41J27/00

    CPC classification number: H04N1/031 ,  H04N1/02845 ,  H04N1/02865 ,  H04N1/203 ,  H04N2201/04781 ,  H04N2201/04786

    Abstract: In an image-reader, the first counter is configured to count a first count value based on a first clock. The second counter is configured to count a second count value based on a second clock. The first reading unit is configured to read a first surface of a document sheet based on the first count value. The second reading unit is configured to read a second surface of the document sheet based on the second count value. The second surface is opposite surface of the first surface. When the first count value reaches a prescribed first value, both the first counter value and the second count value are reset.

    Abstract translation: 在图像读取器中，第一计数器被配置为基于第一时钟对第一计数值进行计数。 第二计数器被配置为基于第二时钟对第二计数值进行计数。 第一读取单元被配置为基于第一计数值来读取文档片材的第一表面。 第二读取单元被配置为基于第二计数值来读取文档片材的第二表面。 第二表面是第一表面的相对表面。 当第一计数值达到规定的第一值时，第一计数器值和第二计数值都被复位。

    Scanning apparatus for preventing defocus aberration
    8.
    发明授权
    Scanning apparatus for preventing defocus aberration 有权
    用于防止散焦像差的扫描装置

    公开(公告)号：US07826108B2

    公开(公告)日：2010-11-02

    申请号：US12246211

    申请日：2008-10-06

    Applicant: Hsi-Yu Chen ,  Chien-Kuo Kuan

    Inventor： Hsi-Yu Chen ,  Chien-Kuo Kuan

    IPC: H04N1/04

    CPC classification number: H04N1/028 ,  H04N1/02885 ,  H04N1/031 ,  H04N1/0313 ,  H04N2201/02458 ,  H04N2201/0246 ,  H04N2201/02462 ,  H04N2201/03104 ,  H04N2201/03112 ,  H04N2201/03116 ,  H04N2201/03141 ,  H04N2201/03145

    Abstract: A scanning apparatus for preventing defocus aberration is provided. The scanning apparatus includes a flatbed scanning portion and a scanning module. The flatbed scanning portion includes a glass platform. The scanning module includes a scanning module case, a light source, multiple reflective mirrors, a lens, an optical sensing element, a printed circuit board and a metallic post. The metallic post is interconnected between the scanning module case and the printed circuit board. The printed circuit board is not in direct contact with the scanning module case so as to prevent defocus aberration resulting from thermal expansion.

    Abstract translation: 提供一种用于防止散焦像差的扫描装置。 扫描装置包括平板扫描部分和扫描模块。 平板扫描部分包括玻璃平台。 扫描模块包括扫描模块壳体，光源，多个反射镜，透镜，光学感测元件，印刷电路板和金属柱。 金属柱在扫描模块壳体和印刷电路板之间互连。 印刷电路板不与扫描模块壳体直接接触，以防止由热膨胀引起的散焦像差。

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