Invention Grant
- Patent Title: Belt device and image forming apparatus incorporating same having a cleaning device which cleans utilizing different polarities
- Patent Title (中): 带式装置和包括具有使用不同极性清洁的清洁装置的图像形成装置
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Application No.: US12913335Application Date: 2010-10-27
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Publication No.: US08731431B2Publication Date: 2014-05-20
- Inventor: Kenji Sugiura , Osamu Naruse , Naomi Sugimoto , Hisashi Kikuchi , Yoshiki Hozumi
- Applicant: Kenji Sugiura , Osamu Naruse , Naomi Sugimoto , Hisashi Kikuchi , Yoshiki Hozumi
- 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: JP2009-248415 20091029; JP2010-189096 20100826
- Main IPC: G03G15/16
- IPC: G03G15/16
Abstract:
A belt device incorporatable in an image forming apparatus includes an endless belt, multiple belt tension rollers disposed in contact with an inner surface of the endless belt, a rotary cleaning member to contact a belt wound area of the endless belt facing an opposing roller to form a cleaning nip between the rotary cleaning member and the endless belt and rotate the rotary cleaning member in a direction opposite the belt moving direction within the cleaning nip, and a voltage applier. The cleaning nip is formed by offsetting a center of the cleaning nip upstream from a center of the belt wound area of the endless belt in the belt moving direction and by at least contacting the rotary cleaning member in a range from the belt wound area to a tensioned belt area located upstream from the belt wound area in the belt moving direction.
Public/Granted literature
- US20110103822A1 BELT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME Public/Granted day:2011-05-05
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