Invention Grant
- Patent Title: Powder conveyance device, toner conveyance device, process cartridge and image forming apparatus
- Patent Title (中): 粉末输送装置，调色剂输送装置，处理盒和成像装置
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Application No.: US11967635Application Date: 2007-12-31
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Publication No.: US07890044B2Publication Date: 2011-02-15
- Inventor: Yoshiyuki Shimizu , Kenzo Tatsumi , Yoshihiro Kawakami , Tomohiro Kubota , Koji Kato , Hirobumi Ooyoshi , Tomofumi Yoshida
- Applicant: Yoshiyuki Shimizu , Kenzo Tatsumi , Yoshihiro Kawakami , Tomohiro Kubota , Koji Kato , Hirobumi Ooyoshi , Tomofumi Yoshida
- 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: JP2007-007955 20070117
- Main IPC: G03G21/00
- IPC: G03G21/00
Abstract:
A powder conveyance device capable of removing toner (powder) stuck to a conveyor belt easily and reliably comprises a powder conveyor belt having a plurality of concavo-convex portions formed continuously on a conveyance surface thereof, driving means for driving the conveyor belt, and a scraping member that contacts the conveyor belt. At least one of the scraping member and a convex portion of the conveyor belt deforms elastically such that a tip end of the scraping member enters a concave portion and scrapes away the powder stuck to the conveyor belt.
Public/Granted literature
- US20080170898A1 POWDER CONVEYANCE DEVICE, TONER CONVEYANCE DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS Public/Granted day:2008-07-17
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