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ROTATION AMOUNT DETECTING DEVICE FOR ROTATION BODY, LENGTH MEASURING DEVICE AND IMAGE FORMING APPARATUS
ROTATION AMOUNT DETECTING DEVICE FOR ROTATION BODY, LENGTH MEASURING DEVICE AND IMAGE FORMING APPARATUS
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机译:用于旋转体的旋转量检测装置,长度测量装置和图像形成装置
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摘要
A rotation amount detecting device for a rotation body includes: a first rotation body having a first surface; a second rotation body having a second surface formed of a material different from that of the first surface and contacting the first surface, and rotating with rotation of the first rotation body; a first support member rotatably supporting the first rotation body at a first position and supporting thereof to be swingable around a first axis at a position different from the first position; a second support member rotatably supporting the second rotation body at a second position and supporting thereof to be swingable around a second axis provided at a position different from the second position, the second axis being the first axis or an axis in the first support member other than the first axis; and a detector that detects a rotation amount of the second rotation body.
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