Patent ID: 8737866
Filing Date: 2014-05-27
Classification: G03G

Abstract:
1. An image forming apparatus, comprising: an image bearing member to bear a latent image on a surface thereof and rotate in a certain direction; a developing device including a developing roller to bear a developing agent to develop the latent image formed on the image bearing member using the developing agent to form a toner image; a cooling device to reduce an internal temperature of the image forming apparatus by blowing air; a controller to calculate the total travel distance of the developing roller every predetermined interval Y within a last elapsed period of time X and calculate a difference D between the latest total travel distance of the developing roller and the total travel distance stored a given time period Z ago by a memory so as to obtain the total travel distance during Z, the controller operating the cooling device for a predetermined period of time W after image forming operation ends where the difference D is equal to or greater than a threshold value M; and the memory to store the total travel distance of the developing roller obtained by the controller.