发明名称 |
Device and method for forming a nip in an image forming apparatus |
摘要 |
An image forming apparatus includes an image carrier which moves while carrying an image and a transfer roller including a roller base material which faces the image carrier and rotates. A concave portion is positioned on a peripheral surface of the roller base material. A grip unit on the concave portion grips a recording medium. An elastic layer is disposed on a peripheral surface of the roller base material. The transfer roller grips a recording medium by the grip unit when the concave portion faces the image carrier and passes the recording medium through a nip between the image carrier and the elastic layer when facing each other so that the image carried on the image carrier is transferred on the recording medium. A roller driving unit rotates the roller base material. A control unit controls the roller driving unit to adjust a timing for forming the nip.
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申请公布号 |
US7974552(B2) |
申请公布日期 |
2011.07.05 |
申请号 |
US20100759915 |
申请日期 |
2010.04.14 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
IMAMURA ATSUSHI;NOMURA YUJIRO;SAKA YOSHIHISA |
分类号 |
G03G15/08 |
主分类号 |
G03G15/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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