| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photoreceptor drive unit and a photoreceptor device where the circumferential velocity of a photoreceptor is not fluctuated without making a mechanism complicated and without installing an additional device, and to provide an image forming apparatus using the aforesaid devices. <P>SOLUTION: A 1st drive transmission means for driving the photoreceptor and a 2nd drive transmission means for driving the peripheral devices of the photoreceptor are arranged on the output shaft of a driving motor 1 attached to the image forming apparatus through a driving motor supporting member 21, and in the 1st drive transmission means, the drive transmission is performed by a toothed belt from a toothed pulley 3 arranged on the output shaft, and in the 2nd drive transmission means, the drive transmission is performed by a gear train from a pinion gear 4 arranged on the output shaft, and also, a gear train supporting member 26 for supporting gears positioned on the downstream side of the pinion gear is arranged, and the gear train supporting member 26 and the driving motor supporting member 21 are separately constituted, and also, the gear train supporting member 26 is fixed with leaving a distance (d) from the driving motor supporting member 21 so as not to directly come in contact with the member 21. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
