Invention Grant
US08540241B2 Sheet end detection device, image recording apparatus including the sheet end detection device, and a method for detecting position of sheet
有权
片材端部检测装置，包括片材端部检测装置的图像记录装置以及用于检测片材位置的方法
- Patent Title: Sheet end detection device, image recording apparatus including the sheet end detection device, and a method for detecting position of sheet
- Patent Title (中): 片材端部检测装置，包括片材端部检测装置的图像记录装置以及用于检测片材位置的方法
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Application No.: US12326062Application Date: 2008-12-01
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Publication No.: US08540241B2Publication Date: 2013-09-24
- Inventor: Hiroto Sugahara
- Applicant: Hiroto Sugahara
- Applicant Address: JP Nagoya-shi, Aichi-ken
- Assignee: Brother Kogyo Kabushiki Kaisha
- Current Assignee: Brother Kogyo Kabushiki Kaisha
- Current Assignee Address: JP Nagoya-shi, Aichi-ken
- Agency: Baker Botts L.L.P.
- Priority: JP2007-310043 20071130
- Main IPC: B65H7/02
- IPC: B65H7/02
Abstract:
A sheet end detection device includes a cylindrical roller rotatable around an axis; and a phase detection unit configured to detect a phase in a circumferential direction of the roller. A first piezoelectric element band is provided on the peripheral surface of the roller and extending in the circumferential direction and the axial direction, and the first piezoelectric element band is configured to detect a contact of the sheet and extending in an axial direction of the roller over an inside and an outside of a contact area to be contacted with the conveyed sheet on the peripheral surface. A position of an arbitrary point of the first piezoelectric element band in the axial direction of the roller corresponds one-to-one with the phase in the circumferential direction of the roller.
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