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热词
    • 2. 发明公开
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • EP3096187A1
    • 2016-11-23
    • EP16168781.9
    • 2016-05-09
    • Ricoh Company Ltd.
    • KOIKE, ToshioKOSUGI, HidekiTAKAHASHI, YuKONDOH, KeinosukeMIKUNIYA, KentaroKIKUCHI, TeppeiFUJIMORI, AkiraYASUDA, MakotoKUWABARA, NobuoMUTO, TetsuyaASO, Kazuhiro
    • G03G15/08G03G15/00G03G15/02G03G15/06G03G21/00
    • An image forming apparatus (1) includes an image bearer (12), a first driver (61) to rotate the image bearer (12), a developing device (13) including a developing roller (13a), a second driver (62) to rotate the developing roller (13a), and a controller (60) to control the first driver (61) and the second driver (62) and set a linear speed ratio (X) of the developing roller (13a) relative to the image bearer (12). The controller (60) executes first driving in which the developing roller (13a) rotates with rotation of the image bearer (12) stopped in an idle time and executes second driving for a predetermined period (D2) subsequent to the first driving. The linear speed ratio (X) is set to a first ratio (X1) smaller than 1 in the second driving and to a second ratio (X2) equal to or greater than 1 in image formation.
    • 一种图像形成设备(1),包括图像载体(12),用于旋转图像载体(12)的第一驱动器(61),包括显影辊(13a)的显影装置(13),第二驱动器(62) (13a)旋转的控制器(60);以及控制第一驱动器(61)和第二驱动器(62)并设置显影辊(13a)相对于图像的线速度比(X)的控制器 持票人(12)。 控制器(60)执行第一驱动,其中显影辊(13a)随着在空闲时间停止的图像承载器(12)的旋转而旋转,并且在第一驱动之后的预定时间段(D2)执行第二驱动。 线速比(X)被设定为在第二驱动中小于1的第一比率(X1)和在图像形成中等于或大于1的第二比率(X2)。