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1. 发明公开

EP1990686A1 Transfer unit and image forming apparatus using the unit 有权
标题翻译： Übertragungseinheitund Bilderzeugungsvorrichtung damit
公开(公告)号：EP1990686A1
公开(公告)日：2008-11-12
申请号：EP08155951.0
申请日：2008-05-09
申请人： Ricoh Company, Ltd.
发明人： Muto, Tetsuya , Yoshida, Ken
IPC分类号： G03G15/01 , G03G15/02
CPC分类号： G03G15/0291 , G03G15/0194 , G03G2215/0129 , G03G2215/026
摘要： An image forming apparatus includes a plurality of image forming units and a plurality of transfer units. The image forming units have corresponding image carriers and charging units. The image forming units form toner images of different colors on the corresponding image carriers. The transfer units face the corresponding image carriers to form transfer areas between the transfer units and the image carriers, and press a transfer member to the corresponding image carriers to transfer the toner images onto the transfer member at the transfer areas. The charging units include at least one corona-type charger and at least one contact-type charger. The image forming apparatus sets a first transfer condition for the transfer unit(s) corresponding to the image carrier(s) charged by the at least one corona-type charger and a second, separate transfer condition for the transfer unit(s) corresponding to the image carrier(s) charged by the at least one contact-type charger.
摘要翻译：图像形成装置包括多个图像形成单元和多个转印单元。图像形成单元具有对应的图像载体和充电单元。图像形成单元在相应的图像载体上形成不同颜色的调色剂图像。转印单元面对相应的图像载体以在转印单元和图像载体之间形成转印区域，并将转印元件按压到相应的图像载体上，以将调色剂图像转印到转印区域上的转印元件上。充电单元包括至少一个电晕型充电器和至少一个接触式充电器。图像形成装置设置与由至少一个电晕型充电器充电的图像载体相对应的转印单元的第一转印条件和用于转印单元对应的第二转移条件的第二转移条件所述图像载体由所述至少一个接触式充电器充电。

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