ROTATING BODY DRIVING DEVICE AND IMAGE FORMING APPARATUS,申请号JP20040146222-传众专利搜索

ROTATING BODY DRIVING DEVICE AND IMAGE FORMING APPARATUS

申请公布号：JP2005328677(A)

申请号：JP20040146222

申请日期：2004.05.17

申请公布日期：2005.11.24

申请人：

RICOH CO LTD

发明人：EBARA YASUHISA

分类号：G03G21/00;G03G15/16;H02P8/12

主分类号：G03G21/00

摘要：<P>PROBLEM TO BE SOLVED: To provide a rotating body driving device that can always keep a torque margin of a stepping motor in an optimum state irrespective of a temperature in the device. <P>SOLUTION: A large diameter gear 3 made of a resin is mounted at the end of a driving shaft 20 of a photoreceptor drum 1. The rotation of a stepping motor 4 is transmitted to the driving shaft 20 via an output gear 5 and the large diameter gear 3 to drive the rotation of the drum 1. A temperature in the device is measured by a temperature sensor 6 arranged near the stepping motor 4. By controlling the drive current value of the stepping motor 4 based on temperature data, the torque margin of a driving means that drives the drum 1 is optimized. <P>COPYRIGHT: (C)2006,JPO&NCIPI