Invention Grant
- Patent Title: Protective layer setting unit, process cartridge, and image forming apparatus using same
- Patent Title (中): 保护层设置单元，处理盒和使用其的成像设备
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Application No.: US12168336Application Date: 2008-07-07
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Publication No.: US07734242B2Publication Date: 2010-06-08
- Inventor: Kumiko Hatakeyama , Toshiyuki Kabata , Masahide Yamashita
- Applicant: Kumiko Hatakeyama , Toshiyuki Kabata , Masahide Yamashita
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClellland, Maier & Neustadt, L.L.P.
- Priority: JP2007-178814 20070706; JP2008-050667 20080229
- Main IPC: G03G21/00
- IPC: G03G21/00
Abstract:
A protective layer setting unit includes a protective agent and an application unit configured to apply the protective agent to an image carrying member in a manner sufficient to satisfy equations (1) and (2). A surface condition of the image carrying member is determined by an applied-agent amount index “X” and an agent coating ratio “Y,” and a ratio of “X/Y” is set to 0.020 or less after applying the protective agent for 120 minutes. applied-agent amount index X=Sb/Sa (1) agent coating ratio Y=(A0−A)/A0×100(%) (2).
Public/Granted literature
- US20090016769A1 PROTECTIVE LAYER SETTING UNIT, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS USING SAME Public/Granted day:2009-01-15
Information query
