Patent ID: 9158260
Filing Date: 2015-10-13
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a rotatable photosensitive member on which a developer image is formable; a developing roller configured to supply developer to the photosensitive member while contacting the photosensitive member; a conveyance roller configured to convey a recording sheet; a first driving source configured to provide a driving force to the developing roller and the conveyance roller and capable of switching a rotating direction thereof between a first direction and a second direction reverse to the first direction; a second driving source configured to provide a driving force to the photosensitive member; a developing driving gear mechanism configured to transmit the driving force of the first driving source to the developing roller; and a conveyance driving gear mechanism configured to transmit the driving force of the first driving source to the conveyance roller, wherein the conveyance driving gear mechanism is configured to cause a rotating direction of the conveyance roller when the first driving source rotates in the first direction to be reverse to the rotating direction of the conveyance roller when the first driving source rotates in the second direction, and wherein the developing driving gear mechanism includes a developing driving switching mechanism configured to cause a rotating direction of the developing roller when the first driving source rotates in the first direction to be the same as the rotating direction of the developing roller when the first driving source rotates in the second direction.