Invention Grant
US08948639B2 Fixing device with mechanism capable of detecting pressure exerted between opposed components and image forming apparatus incorporating same
有权
具有能够检测相对部件之间施加的压力的机构的固定装置和结合其的图像形成装置
- Patent Title: Fixing device with mechanism capable of detecting pressure exerted between opposed components and image forming apparatus incorporating same
- Patent Title (中): 具有能够检测相对部件之间施加的压力的机构的固定装置和结合其的图像形成装置
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Application No.: US13491661Application Date: 2012-06-08
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Publication No.: US08948639B2Publication Date: 2015-02-03
- Inventor: Yoshihiro Kawakami , Tamotsu Ikeda , Kaoru Tada
- Applicant: Yoshihiro Kawakami , Tamotsu Ikeda , Kaoru Tada
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Harness, Dickey & Pierce P.L.C.
- Priority: JP2011-146128 20110630
- Main IPC: G03G15/20
- IPC: G03G15/20
Abstract:
A fixing device includes a pressurization member connected to a pressing rotary body to press the pressing rotary body against a fixing rotary body; a depressurization assembly interposed between the pressing rotary body and the pressurization member and movable between a reduced pressure position where the depressurization assembly causes the pressurization member to press the pressing rotary body against the fixing rotary body with reduced pressure therebetween and an enhanced pressure position where the depressurization assembly is free from pressure from the pressurization member to cause the pressurization member to press the pressing rotary body against the fixing rotary body with enhanced pressure therebetween; a positioner separatably contacting the depressurization assembly to immovably halt the depressurization assembly at the enhanced pressure position; and a position detector separatably contacting the depressurization assembly to detect the position of the depressurization assembly.
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