Invention Grant
US07751768B2 Fixing device and image forming apparatus including fixing device
有权
固定装置和包括定影装置的图像形成装置
- Patent Title: Fixing device and image forming apparatus including fixing device
- Patent Title (中): 固定装置和包括定影装置的图像形成装置
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Application No.: US11862634Application Date: 2007-09-27
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Publication No.: US07751768B2Publication Date: 2010-07-06
- Inventor: Masamichi Yamada
- Applicant: Masamichi Yamada
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2006-264685 20060928
- Main IPC: G03G15/20
- IPC: G03G15/20

Abstract:
A fixing device includes a fixing member, a pressure member and a separation mechanism. The pressure member presses against the fixing member to form a nip through which a toner image on a recording medium is fixed. The separation mechanism is disposed at a downstream side from the nip to separate the recording medium from the fixing member. The separation mechanism includes a separation plate and a gap control member. The separation plate opposed to the fixing member with a gap therebetween includes a metal base member and a resin tip member. The gap control member controlling the gap by contacting the fixing member includes a curved tip having a radius of not greater than 0.6 mm. A center of the curved tip and a tip of the resin tip member are congruent with each other in a direction perpendicular to a feed direction of the recording medium.
Public/Granted literature
- US20080080909A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING FIXING DEVICE Public/Granted day:2008-04-03
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