IMAGE READING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

    公开(公告)号:US20230113044A1

    公开(公告)日:2023-04-13

    申请号:US17864767

    申请日:2022-07-14

    IPC分类号: H04N1/00

    摘要: An image reading device includes a sensor and circuitry. The sensor reads an image on a recording medium. The circuitry inspects the image and outputs an inspection result. The circuitry excludes an area of the recording medium as a first area from an area to be inspected, based on a type of the recording medium or a position of the recording medium with respect to a reading position at which the sensor reads the image, to determine a second area to be inspected. The circuitry outputs the inspection result based on the second area.

    IMAGE READING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING THE IMAGE READING DEVICE

    公开(公告)号:US20220109776A1

    公开(公告)日:2022-04-07

    申请号:US17486916

    申请日:2021-09-28

    IPC分类号: H04N1/401 H04N1/00

    摘要: An image reading device includes a background unit, a reading unit, and circuitry. The background unit is configured to be a background in reading of a recording medium and includes a first region that is black and a second region that is different from the first region. The reading unit is configured to read an image with the background unit as the background, and generate a read value based on a result of reading the image with the background unit. The circuitry is configured to correct the read value based on a reference value generated by the reading unit by reading the second region of the background unit.