Clock-generating circuit and image-forming apparatus having a function of canceling F-theta property errors
    41.
    发明授权
    Clock-generating circuit and image-forming apparatus having a function of canceling F-theta property errors 有权
    时钟发生电路和具有消除F-θ属性误差的功能的图像形成装置

    公开(公告)号:US06788330B2

    公开(公告)日:2004-09-07

    申请号:US10093753

    申请日:2002-03-08

    Abstract: The invention concerns a clock-generating circuit, which generates dot clock pulses for driving a light-emitting element employed in an optical-writing section of an image-forming apparatus and has a function of canceling f&thgr; property errors caused by a f&thgr; lens employed in the image-forming apparatus. The clock-generating circuit includes a digital-delay dot clock adjusting section to adjust timings of rising-edges or falling-edges of the dot clock pulses generated by changing a selection for a plurality of delayed-clock pulses, which are generated by delaying clock-pulses, outputted from a reference oscillator, in slightly different delay times; and a controlling section to control a selecting operation for the plurality of delayed clock pulses, performed in the digital-delay dot clock adjusting section, so as to compensate for f&thgr; property errors caused by the f&thgr; lens employed in the optical-writing section.

    Abstract translation: 本发明涉及一种时钟发生电路,其产生用于驱动图像形成装置的光学写入部分中使用的发光元件的点时钟脉冲,并且具有消除由在 图像形成装置。 时钟发生电路包括数字延迟点时钟调整部分,用于通过改变多个延迟时钟脉冲的选择来产生的点时钟脉冲的上升沿或下降沿的定时,这些延迟时钟脉冲是通过延迟时钟 从参考振荡器输出的脉冲在稍微不同的延迟时间内; 以及控制部分,用于控制在数字延迟点时钟调整部分中执行的多个延迟时钟脉冲的选择操作,以便补偿由光学写入部分中采用的晶片透镜引起的最佳属性误差。

    Multicolor image forming apparatus and method
    42.
    发明授权
    Multicolor image forming apparatus and method 失效
    多色成像装置及方法

    公开(公告)号:US06693725B1

    公开(公告)日:2004-02-17

    申请号:US09614771

    申请日:2000-07-12

    Applicant: Hiromasa Kanno

    Inventor: Hiromasa Kanno

    Abstract: The multicolor image forming apparatus according to the present invention comprises openings near the edge of the laser beam scanning start side, near the center, and near the edge of the laser beam scanning end side, on the photoconductor belt. The multicolor image forming apparatus measures time intervals from the horizontal synchronizing signal to the detection of the scanning start-side opening, the center opening, and the scanning end-side opening, respectively. The multicolor image forming apparatus calculates the function indicating the scanning speed at time t along the surface of the photoconductor, to correct the function indicating an image clock frequency at time t.

    Abstract translation: 根据本发明的多色图像形成装置包括在激光束扫描开始侧的边缘附近,靠近激光束扫描端侧的中心附近并且在感光带上的开口。 多色图像形成装置分别测量从水平同步信号到扫描起始侧开口,中心开口和扫描端侧开口的检测的时间间隔。 多色图像形成装置计算表示沿着感光体表面的时刻t的扫描速度的功能,以校正在时刻t表示图像时钟频率的功能。

    Facsimile device
    44.
    发明授权
    Facsimile device 失效
    FACSIMILE设备

    公开(公告)号:US3800080A

    公开(公告)日:1974-03-26

    申请号:US25197672

    申请日:1972-05-10

    Applicant: RICOH KK

    Inventor: FUWA J

    Abstract: A facsimile device is provided which sends data signals onto a transmission line at a constant speed even though the scanning speed is varied along the scanning line. Video signals derived by scanning the subject copy are sampled, and the sampled data signals derived from each scanning are stored alternately into one of two buffer shift registers. While one of the two registers is storing the data signals, the other register send the data signals at a constant speed onto the transmission line. The sampling pulse train and the pulse train which is used for shifting the register which is storing the data signals are frequency modulated in accordance with the scanning speed of a scanning point on the subject copy so that the stored data is speed corrected at the time of storing.

    Abstract translation: 即使扫描速度沿扫描线变化,也提供以恒定速度将数据信号发送到传输线上的传真装置。 通过扫描对象拷贝导出的视频信号被采样,并且从每个扫描导出的采样数据信号交替存储在两个缓冲器移位寄存器之一中。 虽然两个寄存器之一存储数据信号,但是另一个寄存器以恒定的速度将数据信号发送到传输线。 用于移位正在存储数据信号的寄存器的采样脉冲串和脉冲串根据对象副本上的扫描点的扫描速度进行频率调制,使得存储的数据在 存储。

    OPTICAL FLATBED SCANNER WITH RIGID TRANSPARENT PLATE FIXING

    公开(公告)号:US20180249034A1

    公开(公告)日:2018-08-30

    申请号:US15907748

    申请日:2018-02-28

    Inventor: Bo KJÆR OLSEN

    Abstract: A flatbed scanner document scanner includes a large format document scanner body accommodating a rectangular rigid frame with an upwardly facing plane face and a rectangular transparent plate for supporting a large format document. The rectangular transparent plate overlies the upwardly facing plane face all around the metal frame. The scanner also includes a movable carriage configured to move along and below the rectangular transparent plate and carrying a line camera extending across the rectangular transparent plate. The rectangular transparent plate and the metal frame are bonded together by a hard glue seam that runs on the upwardly facing plane face of the metal frame. A predetermined deflected shape can be formed when the bonded plate and frame are turned upside-down. The rectangular metal frame can deform under its own load to a cambered shape, a flat shape or a less deflected shape when turned upright in a normal position.

    Image reading apparatus and image forming apparatus provided therewith
    46.
    发明授权
    Image reading apparatus and image forming apparatus provided therewith 有权
    图像读取装置和图像形成装置

    公开(公告)号:US08451551B2

    公开(公告)日:2013-05-28

    申请号:US13072935

    申请日:2011-03-28

    Inventor: Hideto Miyanagi

    Abstract: This image reading apparatus, includes: a first retaining member that retains a lens unit; a second retaining member that retains a sensor unit; and a positioning member that sets a relative position between the first retaining member and the second retaining member, wherein the positioning member comprises: a first concave portion that is sagged from a first contact surface to be in contact with the first retaining member; and a second concave portion that is sagged from a second contact surface to be in contact with the second retaining member, and the positioning member is fixed to the first retaining member and the second retaining member by an adhesive filled in the first concave portion and the second concave portion.

    Abstract translation: 该图像读取装置包括:保持透镜单元的第一保持构件; 保持传感器单元的第二保持构件; 以及定位构件,其设定所述第一保持构件和所述第二保持构件之间的相对位置,其中所述定位构件包括:第一凹部,其从第一接触表面下垂以与所述第一保持构件接触; 以及第二凹部,其从第二接触面下垂而与第二保持部件接触,并且定位部件通过填充在第一凹部中的粘合剂固定在第一保持部件和第二保持部件上, 第二凹部。

    Image printing apparatus and method of adjusting and correcting main-scanning offset in image printing apparatus
    47.
    发明授权
    Image printing apparatus and method of adjusting and correcting main-scanning offset in image printing apparatus 有权
    图像打印装置和图像打印装置中的主扫描偏移的校正和校正方法

    公开(公告)号:US07986433B2

    公开(公告)日:2011-07-26

    申请号:US12268326

    申请日:2008-11-10

    Applicant: Kouichi Takaki

    Inventor: Kouichi Takaki

    Abstract: This invention is directed to an image printing apparatus which can print images without any halfway offset or obverse/reverse pixel offset at a low cost. An image printing apparatus includes a clock generating section which generates a dot clock as the basis of each pixel forming an image, an image printing section which prints a one-line image in a main scanning direction in accordance with image data with reference to the dot clock output from the clock generating section, and prints a one-page image by repeating in the sub-scanning direction one-line image printing performed in the main scanning direction, and a clock control section which changeably controls the frequency of the dot clock during scanning of one line in the main scanning direction.

    Abstract translation: 本发明涉及一种图像打印设备,其可以以低成本打印图像而没有任何中途偏移或正面/反向像素偏移。 一种图像打印设备包括:时钟产生部分,其生成点时钟作为形成图像的每个像素的基础,图像打印部分,根据图像数据参照点来在主扫描方向上打印单行图像 从时钟产生部分输出的时钟,并且通过在副扫描方向上重复在主扫描方向上执行的一行图像打印来打印单页图像,以及时钟控制部分,其可变地控制点时钟频率 在主扫描方向扫描一行。

    IMAGE READING APPARATUS, MULTIFUNCTION PRINTER, AND IMAGE READING METHOD
    48.
    发明申请
    IMAGE READING APPARATUS, MULTIFUNCTION PRINTER, AND IMAGE READING METHOD 有权
    图像读取装置,多功能打印机和图像读取方法

    公开(公告)号:US20110157616A1

    公开(公告)日:2011-06-30

    申请号:US12955529

    申请日:2010-11-29

    Abstract: This invention is directed to image reading capable of suppressing EMI unwanted radiation while maintaining image quality. To accomplish this, the following processing is executed when reading an original image by a photoelectric transducer. More specifically, a first driving signal where SSCG spread modulation is applied, and a second driving signal where no SSCG spread modulation is applied are generated from a reference signal. Either the first or second driving signal is selected, and a timing signal for reading the original image is generated based on the selected driving signal. The image signal obtained by the photoelectric transducer is latched using the timing signal. The latched image signal is transferred for subsequent image processing. Upon reading a one-line image original, the second driving signal is selected till the completion of the latch operation, and after the latch operation, the first driving signal is selected for an image signal transfer operation.

    Abstract translation: 本发明涉及能够在保持图像质量的同时抑制EMI不需要的辐射的图像读取。 为了实现这一点,当通过光电传感器读取原始图像时,执行以下处理。 更具体地,从参考信号产生施加SSCG扩展调制的第一驱动信号和不施加SSCG扩展调制的第二驱动信号。 选择第一或第二驱动信号,并且基于所选择的驱动信号产生用于读取原始图像的定时信号。 使用定时信号来锁存由光电变换器获得的图像信号。 被锁定的图像信号被传送用于随后的图像处理。 在读取单行图像原稿时,选择第二驱动信号直到锁存操作完成,并且在锁存操作之后,选择第一驱动信号进行图像信号传送操作。

    OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS
    49.
    发明申请
    OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS 有权
    光学扫描装置和图像形成装置

    公开(公告)号:US20100091342A1

    公开(公告)日:2010-04-15

    申请号:US12563214

    申请日:2009-09-21

    Inventor: Tadashi Nakamura

    Abstract: A first main-scanning-position correction unit divides a surface to be scanned into first areas in a main scanning direction into areas, sets a separate clock-pulse timing for first area, and corrects a main-scanning position error. A second main-scanning-position correction unit divides the surface into second areas in the main scanning direction based on first-scanning-position correction data, sets a separate clock-pulse timing for each second area, and corrects the main-scanning position error.

    Abstract translation: 第一主扫描位置校正单元将要扫描的表面沿主扫描方向划分成第一区域,设置第一区域的单独的时钟脉冲定时,并校正主扫描位置误差。 第二主扫描位置校正单元基于第一扫描位置校正数据将主表面划分成主扫描方向的第二区域,为每个第二区域设置单独的时钟脉冲定时,并校正主扫描位置误差 。

    OPTICAL COMPONENT STRUCTURE AND IMAGE SENSOR MODULE USING THE SAME
    50.
    发明申请
    OPTICAL COMPONENT STRUCTURE AND IMAGE SENSOR MODULE USING THE SAME 审中-公开
    光学元件结构和图像传感器模块

    公开(公告)号:US20090136193A1

    公开(公告)日:2009-05-28

    申请号:US12324270

    申请日:2008-11-26

    Applicant: Yasuhiro NAGAO

    Inventor: Yasuhiro NAGAO

    Abstract: An optical component structure includes an elongate optical component, a support member to which the optical component is fixed, and an adhesive for bonding the optical component to the support member. The optical component is provided with a contacting portion and a bonding portion different in position from the contacting portion. The contacting portion is brought into direct contact with the support member in a direction perpendicular to the longitudinal direction of the optical component. The adhesive is applied to the bonding portion, but not to the contacting portion. Examples of the optical component include a linear light source unit and a lens unit used in an image sensor module.

    Abstract translation: 光学部件结构包括细长光学部件,固定有光学部件的支撑部件和用于将光学部件粘合到支撑部件的粘合剂。 光学部件设置有接触部分和与接触部分不同位置的接合部分。 接触部分在与光学部件的纵向方向垂直的方向上与支撑部件直接接触。 将粘合剂施加到接合部分,而不是接触部分。 光学部件的实例包括在图像传感器模块中使用的线性光源单元和透镜单元。

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