公开(公告)号：US20230262183A1

公开(公告)日：2023-08-17

申请号：US18101665

申请日：2023-01-26

Applicant: KYOCERA Document Solutions Inc.

Inventor： Ryo KAWAOKA ,  Tadaharu KUSUMI

IPC: H04N1/00 ,  H04N1/028

CPC classification number: H04N1/00819 ,  H04N1/02865

Abstract: A sheet detecting apparatus includes: a light emitting unit that emits light emitted toward a detection position; a light receiving unit that is provided to receive the light reflected by a sheet present at the detection position and that outputs an electric signal which corresponds to a received light amount; and an adjustment processing unit that adjusts, within a specified range, a duty ratio of a drive pulse signal used to drive the light emitting unit, so that a detection value of the electric signal output from the light receiving unit is included in a specified standard range; and a decision processing unit that decides the specified range based on a change range which is among a variable range of the duty ratio of the drive pulse signal and in which the detection value of the electric signal changes in response to a change in the duty ratio.

公开(公告)号：US20240388667A1

公开(公告)日：2024-11-21

申请号：US18667169

申请日：2024-05-17

Applicant: KYOCERA Document Solutions Inc.

Inventor： Ryo KAWAOKA

IPC: H04N1/00

Abstract: In an image reading device, an object intrusion detecting device includes a rod-like member disposed along a widthwise direction of a document tray and detects that the rod-like member has been pushed up to a predetermined position in a height direction. When the object intrusion detecting device detects that the rod-like member has been pushed up to the predetermined abnormal position in the height direction, the controller determines that an object intrusion has occurred.

公开(公告)号：US20140241740A1

公开(公告)日：2014-08-28

申请号：US14188476

申请日：2014-02-24

Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Kentaro NARUSE ,  Ryo KAWAOKA ,  Junya YODA ,  Rie TEZUKA

IPC: G03G15/20

CPC classification number: G03G15/2039 ,  G03G15/205 ,  G03G15/55 ,  G03G2215/2032

Abstract: An abnormality detection device for an image forming apparatus detects an abnormality in the image forming apparatus which includes a heating belt looped around a heating roller and a fixing roller. The abnormality detection device for an image forming apparatus includes: thermistors for detecting temperatures of one widthwise end portion and the other widthwise end portion of the heating belt; a temperature difference detection section for determining whether or not a temperature difference between the temperature of the one end portion and the temperature of the other end portion which are detected by the thermistors is greater than a predetermined value; and a judgment section for judging that an abnormality has occurred in the image forming apparatus when it is determined in the temperature difference detection section that the temperature difference is greater than the predetermined value.

Abstract translation: 用于图像形成装置的异常检测装置检测图像形成装置中的异常，该图像形成装置包括围绕加热辊和定影辊环绕的加热带。 图像形成装置的异常检测装置包括：用于检测加热带的一个宽度方向端部和另一个宽度方向端部的温度的热敏电阻; 温度差检测部，用于判定由所述热敏电阻检测出的所述一端部的温度与所述另一端部的温度之间的温度差是否大于预定值; 以及判断部，其在所述温度差检测部中判断为所述温度差大于所述规定值时，判定所述图像形成装置发生异常。