发明名称 |
Image forming apparatus with roller formed in inverted crown shape |
摘要 |
An image forming apparatus including; an image carrier carrying a toner image; a transfer belt making pressure contact with the image carrier through a sheet of paper and transferring the toner image onto the sheet of paper; a plurality of supporting rollers stretching and supporting the transfer belt; and a transfer roller to which transfer electrical current is applied, as well as making pressure contact of the transfer belt with the image carrier from a back surface of the transfer belt, wherein at least one roller of the supporting rollers is formed in an inverted crown shape with a size of the center portion is smaller than a size of the end portion, and the transfer belt is rotationally driven for a prescribed time without applying transfer electrical current both or in either of before and after transfer of a toner image.
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申请公布号 |
US8588637(B2) |
申请公布日期 |
2013.11.19 |
申请号 |
US201113079971 |
申请日期 |
2011.04.05 |
申请人 |
NAKAMURA MASAKAZU;OKUI SUSUMU;KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. |
发明人 |
NAKAMURA MASAKAZU;OKUI SUSUMU |
分类号 |
G03G15/16;G03G15/01 |
主分类号 |
G03G15/16 |
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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