Invention Application
- Patent Title: RECORDING MATERIAL END POSITION DETECTION APPARATUS AND IMAGE FORMING APPARATUS
- Patent Title (中): 记录材料端位置检测装置和图像形成装置
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Application No.: US13991597Application Date: 2011-11-10
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Publication No.: US20130259498A1Publication Date: 2013-10-03
- Inventor: Eijiro Ohashi , Haruki Ishibashi
- Applicant: Eijiro Ohashi , Haruki Ishibashi
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Priority: JP2010-272704 20101204; JP2011-201837 20110915
- International Application: PCT/JP2011/076591 WO 20111110
- Main IPC: G01B11/14
- IPC: G01B11/14
Abstract:
An rotation angle of a crank arm is calculated on the basis of a period of time in which a recording material is detected or a period of time in which the recording material is not detected and an end position of the recording material is calculated from the calculated rotation angle, so that detection of the end position of the recording material can be started regardless of a stop position of a sensor and the end position of the recording material can be accurately detected without using a dedicated drive source or member to reciprocate the sensor.
Public/Granted literature
- US08989649B2 Recording material end position detection apparatus and image forming apparatus Public/Granted day:2015-03-24
Information query
