Image reading device and image forming device
    11.
    发明授权
    Image reading device and image forming device 有权
    图像读取装置和图像形成装置

    公开(公告)号:US09025219B2

    公开(公告)日:2015-05-05

    申请号:US14042961

    申请日:2013-10-01

    Inventor: Kohei Ishido

    Abstract: An image reading device includes a reading unit provided with an image sensor and configured to read a manuscript placed on a contact glass, a manuscript sensor whose output level varies depending on whether the manuscript is detected, and a moving mechanism configured to move the manuscript sensor from a predetermined reference position in an oblique direction with respect to a main scanning direction and a sub scanning direction such that a detection zone of the manuscript sensor passes through a side of the manuscript parallel to the sub scanning direction and a side of the manuscript parallel to the main scanning direction. A recognizing unit is also included that is configured to recognize lengths in the main scanning direction and the sub scanning direction of the manuscript, based on a displacement of the manuscript sensor from the reference position.

    Abstract translation: 一种图像读取装置,包括具有图像传感器并被配置为读取放置在接触玻璃上的原稿的读取单元,其输出电平根据是否检测到原稿而变化的原稿传感器以及移动机构,其被配置为移动原稿传感器 从相对于主扫描方向和副扫描方向的倾斜方向的预定基准位置,使得原稿传感器的检测区域通过原稿的与副扫描方向平行的一侧,并且原稿的一侧平行 到主扫描方向。 还包括识别单元,其被配置为基于原稿传感器与参考位置的位移来识别原稿的主扫描方向和副扫描方向上的长度。

    Image forming device
    13.
    发明授权

    公开(公告)号:US11479428B2

    公开(公告)日:2022-10-25

    申请号:US17109249

    申请日:2020-12-02

    Inventor: Kohei Ishido

    Abstract: An image forming device includes an image forming unit, a reading unit, a registration-less unit, and an engine control unit. The reading unit reads a sheet to be conveyed. The engine control unit moves the other end side of the registration-less unit to correct skew. The engine control unit obtains a deviation amount (first deviation amount) of the position of the sheet based on the correction, and changes a sheet conveyance speed from a first speed to a second speed when the sheet enters the registration-less unit. The engine control unit adjusts the timing to change from the first speed to the second speed based on the first deviation amount.

    Image forming device
    14.
    发明授权

    公开(公告)号:US11314181B2

    公开(公告)日:2022-04-26

    申请号:US17126113

    申请日:2020-12-18

    Inventor: Kohei Ishido

    Abstract: An image forming device includes a first control circuit, a second control circuit, a high-voltage substrate, and a polygon motor. The high-voltage substrate applies a voltage with a frequency of an application signal to a toner image forming member. The first control circuit generates a first clock signal, counts the number of the first clock signal, and generates a motor drive signal. The first control circuit counts the first clock signal and generates an adjustment signal. The second control circuit counts the number of actual measurements which is a count value of the second clock signal during one cycle of the adjustment signal. The second control circuit counts the second clock signal by a set value. A setting circuit in the second control circuit sets the set value in accordance with the difference between the number of actual measurements and a theoretical number of times.

    Image forming apparatus
    15.
    发明授权

    公开(公告)号:US11163253B2

    公开(公告)日:2021-11-02

    申请号:US17105705

    申请日:2020-11-27

    Inventor: Kohei Ishido

    Abstract: An image forming apparatus includes a paper transport unit, an image forming unit, a reading unit, a foreign matter detection signal generation circuit, and a foreign matter detection control circuit. The foreign matter detection signal generation circuit generates a first foreign matter detection signal, based on an analog image signal to be output from a line sensor. In foreign matter detection processing, when a pixel that reads foreign matter continues by a specific first consecutive number or more in a signal based on the analog image signal of each pixel to be output from the line sensor, the foreign matter detection signal generation circuit sets a level of the first foreign matter detection signal to a level indicating the presence of foreign matter.

    Fixing device, image forming apparatus including the same, and method for controlling the fixing device
    17.
    发明授权
    Fixing device, image forming apparatus including the same, and method for controlling the fixing device 有权
    固定装置,包括该固定装置的图像形成装置以及用于控制定影装置的方法

    公开(公告)号:US09037023B2

    公开(公告)日:2015-05-19

    申请号:US13778331

    申请日:2013-02-27

    Inventor: Kohei Ishido

    CPC classification number: G03G15/2078 G03G15/2035 G03G15/2039

    Abstract: A fixing device includes a heating rotating member, a pressing rotating member, a motor, a fixing pressure adjustment mechanism, a control section, a motor drive section, a detecting member, and a stop control circuit. The heating rotating member heats a paper sheet. The pressing rotating member is pressed to the heating rotating member. The motor can rotate in both forward and backward directions. The fixing pressure adjustment mechanism moves a rotating member to be moved between first and second positions. The control section includes a control device, issues an instruction of voltage to be applied to the motor. The motor drive section controls the voltage to be applied to the motor. The detecting member detects that the rotating member to be moved reaches the first position. The stop control circuit stops the motor without software control when the rotating member to be moved reaches the first position.

    Abstract translation: 定影装置包括加热旋转部件,按压旋转部件,电动机,定影压力调节机构,控制部,电动机驱动部,检测部件和停止控制电路。 加热旋转部件加热纸张。 按压旋转构件被按压到加热旋转构件。 马达可以向前和向后两个方向旋转。 定影压力调节机构使第一和第二位置之间移动的旋转构件移动。 控制部包括控制装置,发出施加于电动机的电压指令。 电机驱动部分控制电机施加的电压。 检测构件检测到被移动的旋转构件到达第一位置。 当移动的旋转构件到达第一位置时,停止控制电路在没有软件控制的情况下停止电动机。

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