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发明授权
CN1815387B 图像形成装置 失效 - 权利终止

图像形成装置
摘要：
本发明提供一种图像形成装置，其具有中间转印带(15)，沿此中间转印带(15)配置着各种颜色的图像制作单元(11～14)。通过此些图像制作单元(11～14)将各种颜色的调色剂像顺序重叠转印到中间转印带(15)上，形成彩色调色剂像。所述中间转印带(15)由驱动辊(16)、从动辊(17)及张力辊(18)张紧支撑，通过检测对中间转印带(15)施加张力的张力辊(18)的转动速度，求出中间转印带(15)的线速度。在进行套色不准校正控制时，按照该中间转印带(15)的线速度，调整各种颜色调色剂像的写入时机等。
摘要（英）：

Disclosed is an image forming apparatus, which comprises an intermediate transfer belt ( 15 ), and a plurality of image-forming units ( 11 ) to ( 14 ) disposed along the intermediate transfer belt ( 15 ) and adapted to form toner images of different colors and sequentially transfer the toner images onto the intermediate transfer belt ( 15 ) in a superimposed manner so as to form a color toner image. The intermediate transfer belt ( 15 ) is laid across a drive roller ( 16 ), a driven roller ( 17 ) and a tension roller ( 18 ), in a tensioned condition. A rotation speed of the tension roller ( 18) adapted to apply a tension to the intermediate transfer belt ( 15 ) is detected to obtain a linear speed of the intermediate transfer belt ( 15 ). In a process of color-misregistration correction,a write-start timing for each toner image of the colors is adjusted based on the linear speed of the intermediate transfer belt ( 15 ).

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