Image reading device and image forming apparatus incorporating the image reading device

    公开(公告)号:US10298792B2

    公开(公告)日:2019-05-21

    申请号:US15643938

    申请日:2017-07-07

    IPC分类号: H04N1/00 B65H5/06 H04N1/12

    摘要: An image forming device, which is included in an image forming apparatus, includes an image reader, a sheet conveyance passage, a transparent body, an opposing body, and multiple curved opposing portions. The image reader is configured to read an image formed on a target object. The sheet conveyance passage is a passage through which the target object is conveyed. The transparent body is disposed between the sheet conveyance passage and the image reader. The opposing body is disposed facing the transparent body on a side opposite the image reader. The multiple curved opposing portions have respective outwardly curving reference planes. The multiple curved opposing portions are sequentially switched and located at a predetermined image reading position at which the multiple curved opposing portions face the transparent body with a gap through which the target object passes the predetermined image reading position.

    DETECTING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING THE DETECTING DEVICE

    公开(公告)号:US20190202648A1

    公开(公告)日:2019-07-04

    申请号:US16155815

    申请日:2018-10-09

    IPC分类号: B65H7/14 B65H5/06 G01B11/26

    摘要: A detecting device, which is included in an image forming apparatus, includes a detector configured to optically detect at least one of a position of a sheet, a position of an image formed on the sheet, and the image formed on the sheet, and a rotary body disposed at a position opposed to the detector and having a shaft, the rotary body being rotatable about the shaft in a sheet conveying direction of the sheet. The sheet is conveyed to space between the detector and the rotary body. The rotary body has a reference plane on an outer circumferential surface, a line formed on the reference plane and extending in a width direction perpendicular to the sheet conveying direction. The detector detects the line on the reference plane while the rotary body is rotating when the sheet does not intervene between the detector and the rotary body.