Invention Grant
US07899375B2 Developing apparatus, image forming apparatus, image forming system and image forming method
有权
显影装置，图像形成装置，图像形成系统和图像形成方法
- Patent Title: Developing apparatus, image forming apparatus, image forming system and image forming method
- Patent Title (中): 显影装置，图像形成装置，图像形成系统和图像形成方法
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Application No.: US12059803Application Date: 2008-03-31
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Publication No.: US07899375B2Publication Date: 2011-03-01
- Inventor: Hiroshi Kato , Takatomo Fukumoto , Osamu Kobayashi
- Applicant: Hiroshi Kato , Takatomo Fukumoto , Osamu Kobayashi
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: DLA Piper LLP (US)
- Priority: JP2007-096603 20070402; JP2007-134101 20070521; JP2007-195001 20070726; JP2007-195002 20070726; JP2007-195003 20070726
- Main IPC: G03G15/08
- IPC: G03G15/08
Abstract:
A developer carrier has concave portions regularly arranged on the surface thereof and being rotatable with a developer thereon. A contact member is made of an elastic rubber material, is in contact with the surface of the developer carrier, and vibrates with the rotation of the developer carrier. A value obtained by dividing a movement speed of the surface at the time of rotation of the developer carrier by a pitch of the concave portions in a peripheral direction of the developer carrier is smaller than a peak vibrational frequency of the contact member when a loss tangent obtained by dividing a loss elastic modulus of the contact member by a storage elastic modulus is the greatest.
Public/Granted literature
- US20090003888A1 Developing Apparatus, Image Forming Apparatus, Image Forming System and Image Forming Method Public/Granted day:2009-01-01
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