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    • 7. 发明申请
    • IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
    • 图像形成装置和图像形成方法
    • US20140270864A1
    • 2014-09-18
    • US14208131
    • 2014-03-13
    • Akira YASHIROTakayuki KAWAMOTOKunihiro KOMAI
    • Akira YASHIROTakayuki KAWAMOTOKunihiro KOMAI
    • G03G15/16
    • G03G15/1605G03G15/1675
    • An aspect of the present invention provides an image forming apparatus including: a photosensitive element where a latent image is formed and developed into a toner image; an image carrier; an intermediate transfer driving roller that drives the image carrier; a primary transfer roller for transferring the toner image from the photosensitive element to the image carrier; a secondary transfer roller for secondary transfer of the toner image from the image carrier to a medium; a bias applying unit that applies, as a secondary transfer bias, a first bias and a second bias to the intermediate transfer driving roller and the secondary transfer roller, respectively; and a fixing unit that fixes the toner image onto the medium. The first bias is lower than a minimum voltage at which discharge to the primary transfer roller can occur. The second bias depends on the first bias and is opposite in polarity therefrom.
    • 本发明的一个方面提供了一种图像形成装置,包括:感光元件,其中潜像形成并显影成调色剂图像; 图像载体; 驱动图像载体的中间传送驱动辊; 用于将调色剂图像从感光元件转印到图像载体上的一次转印辊; 用于将调色剂图像从图像载体二次转印到介质的二次转印辊; 偏置施加单元,分别将第一偏压和第二偏压作为二次转印偏压施加到中间转印驱动辊和二次转印辊; 以及将调色剂图像固定在介质上的定影单元。 第一偏压低于可能发生向一次转印辊的放电的最小电压。 第二偏压取决于第一偏压,并且与其极性相反。
    • 8. 发明授权
    • Image forming apparatus and image forming method
    • 图像形成装置及图像形成方法
    • US09128422B2
    • 2015-09-08
    • US14208131
    • 2014-03-13
    • Akira YashiroTakayuki KawamotoKunihiro Komai
    • Akira YashiroTakayuki KawamotoKunihiro Komai
    • G03G15/16
    • G03G15/1605G03G15/1675
    • An aspect of the present invention provides an image forming apparatus including: a photosensitive element where a latent image is formed and developed into a toner image; an image carrier; an intermediate transfer driving roller that drives the image carrier; a primary transfer roller for transferring the toner image from the photosensitive element to the image carrier; a secondary transfer roller for secondary transfer of the toner image from the image carrier to a medium; a bias applying unit that applies, as a secondary transfer bias, a first bias and a second bias to the intermediate transfer driving roller and the secondary transfer roller, respectively; and a fixing unit that fixes the toner image onto the medium. The first bias is lower than a minimum voltage at which discharge to the primary transfer roller can occur. The second bias depends on the first bias and is opposite in polarity therefrom.
    • 本发明的一个方面提供了一种图像形成装置,包括:感光元件,其中潜像形成并显影成调色剂图像; 图像载体; 驱动图像载体的中间传送驱动辊; 用于将调色剂图像从感光元件转印到图像载体上的一次转印辊; 用于将调色剂图像从图像载体二次转印到介质的二次转印辊; 偏置施加单元,分别将第一偏压和第二偏压作为二次转印偏压施加到中间转印驱动辊和二次转印辊; 以及将调色剂图像固定在介质上的定影单元。 第一偏压低于可能发生向一次转印辊的放电的最小电压。 第二偏压取决于第一偏压,并且与其极性相反。