IMAGE FORMING APPARATUS

PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of improving and retaining transfer efficiency by applying sufficient vibration by the use of the natural frequency of a member composing a transfer section, and by controlling the application of vibration. SOLUTION: The image forming apparatus includes: a vibrating means for vibrating at least one of a transfer member and a transferred body; and a vibration control means for controlling vibration, applied by the vibrating means, such that during transfer of toner from the transfer member to the transferred body, the frequency of the vibration is changed within a predetermined frequency range including the natural frequency of the transfer member or transferred body vibrated by the vibrating means. COPYRIGHT: (C)2007,JPO&INPIT