Invention Grant
- Patent Title: Transfer nip roller, transfer device, and image forming apparatus
- Patent Title (中): 转印辊，转印装置和成像装置
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Application No.: US12073394Application Date: 2008-03-05
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Publication No.: US08270886B2Publication Date: 2012-09-18
- Inventor: Ryuuichi Minbu , Hiromi Ogiyama , Junroh Uda
- Applicant: Ryuuichi Minbu , Hiromi Ogiyama , Junroh Uda
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Limited
- Current Assignee: Ricoh Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2007-070561 20070319
- Main IPC: G03G15/20
- IPC: G03G15/20
Abstract:
In a transfer nip roller operative to transfer an image from an image carrier to a recording medium, a ratio (We3/Wt3)/(We30/Wt30) is 0.47 or more, where We3 is an elastic workload and Wt3 is a total workload measured by applying a load on a covering portion under a load push-in condition of 3 mN/10 seconds, and We30 is an elastic workload and Wt30 is a total workload measured by applying a load on the covering portion under a load push-in condition of 30 mN/10 seconds.
Public/Granted literature
- US20080232867A1 Transfer nip roller, transfer device, and image forming apparatus Public/Granted day:2008-09-25
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