| 摘要 |
<p>PURPOSE:To stably transmit power by providing a power transmission wheel supporting unit and the second power transmission wheel, on a shaft not moved except the power transmission wheel supporting unit, applying power relating to the first power transmission wheel. CONSTITUTION:A power transmission wheel 1 is supported in a rotatable condition. A power transmission wheel supporting unit 3 is supported in a rotary motion or linear motion possible condition to press a transcription roll 150 to a developing drum 101 by spring tension. Power is transmitted to the power transmission wheel 1 by a power transmitting belt 2. A power transmission wheel 11 is set up in a rotatable condition on a fixed shaft on a main unit placed almost parallel or vertical to a straight line l of connecting the power transmission wheel supporting unit 3 and the center of rotation of the power transmission wheel 1. In this way, power is stably transmitted.</p> |
