Patent ID: 7445328
Filing Date: 2008-11-04
Classification: B41J

Abstract:
1. An image forming apparatus, comprising: a chassis having a side wall with a slot; a roller rotatably supported in the chassis; a motor configured to drive the roller in either of first and second rotational directions; a motive gear that receives driving force from the motor; a driven gear that meshes with the motive gear; and a pivot arm that is pivotally mounted on the motive gear and has an axle that rotatably supports the driven gear via a coil spring and a contact element that protrudes towards the side wall of the chassis, the contact element being disposed in the slot to restrict a pivotal movement of the pivot arm within a predetermined amount, one of inner and outer peripheral portions of the coil spring engaging a first holder integrally formed on the driven gear with a biasing force of the coil spring, the other of the inner and outer peripheral portions of the coil spring engaging a second holder formed on the pivot arm with the biasing force of the coil spring.