IMAGE FORMING APPARATUS
    21.
    发明申请

    公开(公告)号:US20220299924A1

    公开(公告)日:2022-09-22

    申请号:US17836512

    申请日:2022-06-09

    IPC分类号: G03G15/00 H04N1/00

    摘要: An image forming apparatus includes a first detector detecting an operation sound based on a sound wave received by a receiver; a second detector detecting basis weight of recording material based on an ultrasonic wave transmitted from a transmitter and received by the receiver; a switching unit that switches destination of a reception signal from the receiver between a first path to the first detector and a second path to the second detector; and a controller that controls the switching unit such that the reception signal is output to the first path at a first timing and to the second path at a second timing. When a predetermined condition is satisfied, the controller controls the switching unit such that the reception signal is output to the second path at the first timing or to the first path at the second timing.

    Image forming apparatus
    23.
    发明授权

    公开(公告)号:US11385587B2

    公开(公告)日:2022-07-12

    申请号:US17213046

    申请日:2021-03-25

    IPC分类号: G03G15/00 H04N1/00

    摘要: An image forming apparatus includes a first detector detecting an operation sound based on a sound wave received by a receiver; a second detector detecting basis weight of recording material based on an ultrasonic wave transmitted from a transmitter and received by the receiver; a switching unit that switches destination of a reception signal from the receiver between a first path to the first detector and a second path to the second detector; and a controller that controls the switching unit such that the reception signal is output to the first path at a first timing and to the second path at a second timing. When a predetermined condition is satisfied, the controller controls the switching unit such that the reception signal is output to the second path at the first timing or to the first path at the second timing.

    IMAGE FORMING APPARATUS
    24.
    发明申请

    公开(公告)号:US20210311424A1

    公开(公告)日:2021-10-07

    申请号:US17213046

    申请日:2021-03-25

    IPC分类号: G03G15/00 H04N1/00

    摘要: An image forming apparatus includes a first detector detecting an operation sound based on a sound wave received by a receiver; a second detector detecting basis weight of recording material based on an ultrasonic wave transmitted from a transmitter and received by the receiver; a switching unit that switches destination of a reception signal from the receiver between a first path to the first detector and a second path to the second detector; and a controller that controls the switching unit such that the reception signal is output to the first path at a first timing and to the second path at a second timing. When a predetermined condition is satisfied, the controller controls the switching unit such that the reception signal is output to the second path at the first timing or to the first path at the second timing.

    Printing apparatus and light-emitting element driving device

    公开(公告)号:US10761470B2

    公开(公告)日:2020-09-01

    申请号:US16560884

    申请日:2019-09-04

    IPC分类号: G03G15/04 G03G15/00

    摘要: A printing apparatus is provided. The apparatus comprises a light-emitting element, a light-receiving element including a first terminal and a second terminal, a reference current generator supplying a reference current, a comparator comparing a monitor current with the reference current, the light-receiving element supplying the monitor current to the second terminal in accordance with a light emission amount, a driver driving the light-emitting element based on an output of the comparator, and a reference voltage controller. The comparator includes a first input terminal connected to the second terminal and a second input terminal. The reference voltage controller supplies a reference voltage selected from at least two voltage values to the second input terminal, and to control the voltage of the second terminal to be a voltage according to the reference voltage.

    Optical scanning device and image forming apparatus provided with same
    27.
    发明授权
    Optical scanning device and image forming apparatus provided with same 有权
    光学扫描装置及具备该光学扫描装置的图像形成装置

    公开(公告)号:US09250557B2

    公开(公告)日:2016-02-02

    申请号:US13909877

    申请日:2013-06-04

    摘要: An image forming apparatus includes a driving unit configured to drive a light-emitting element for emitting a laser beam; a rotational polygon mirror scans a photosensitive member with the laser beam. The driving unit executes a first adjustment for causing the light-emitting element to emit light at a first light emission intensity to adjust a first driving current, and a second adjustment for causing the light-emitting element to emit light at a second light emission intensity to adjust a second driving current. During a time period after the polygon mirror has started rotating until a predetermined speed is reached, the driving unit performs the first adjustment and the second adjustment, after the polygon mirror has started rotating and before performing the first adjustment, performs the second adjustment.

    摘要翻译: 图像形成装置包括:驱动单元,被配置为驱动用于发射激光束的发光元件; 旋转多面镜用激光束扫描感光构件。 所述驱动单元执行用于使所述发光元件以第一发光强度发光的第一调整以调节第一驱动电流,以及用于使所述发光元件以第二发光强度发光的第二调整 调整第二驱动电流。 在多面镜开始旋转直到达到预定速度的时间段期间,驱动单元执行第一调整和第二调整,在多面镜开始旋转之后并且在执行第一调整之前,执行第二调整。