Patent ID: 8746678
Filing Date: 2014-06-10
Classification: B41J,B65H

Abstract:
1. An image forming device comprising: a tray having a surface on which a recording sheet is placed; an image forming unit configured to form an image on the recording sheet; a motor configured to generate a driving force; a feeding roller configured to rotate upon receipt of the driving force to feed the recording sheet placed on the surface toward the image forming unit; a support shaft disposed above the tray; a support portion having a first end portion and a second end portion, the support portion being configured to rotatably support the feeding roller at the first end portion, to be supported to the support shaft at the second end portion, and to be pivotally movable about the support shaft; a drive shaft independent of the support shaft and configured to rotate upon receipt of the driving force from the motor; a main support portion configured to rotatably support the drive shaft; a planetary gear unit provided at the main support portion, the planetary gear unit comprising a sun gear and a planetary gear, the sun gear being configured to rotate integrally with the drive shaft, the planetary gear being configured to be meshingly engaged with the sun gear and swingably moved about the sun gear while maintaining meshing engagement with the sun gear; and a driving force transmission unit provided at the support portion and comprising an input gear, the input gear being configured to be meshingly engaged with the planetary gear when the planetary gear is swingingly moved in accordance with a rotational movement of the drive shaft, the driving force transmission unit being configured to transmit to the feeding roller the driving force that is transmitted from the drive shaft to the input gear through the sun gear and the planetary gear.