Patent ID: 6215974
Filing Date: 2001-04-10
Classification: G03G

Abstract:
A developing apparatus for supplying toner to a latent image carried on a latent image carrier and converting the latent image to a visible image with the toner, comprising:a toner hopper configured to hold unused toner;a developing tub; anda toner hopper mounting part provided between the developing tub and the toner hopper, said toner hopper being adapted to be mounted to and removed from said toner hopper mounting part, said toner hopper mounting part including a vibration apparatus;wherein said vibration apparatus comprises: a motor including a rotation shaft; and an eccentric part formed on the rotation shaft of said motor; andwherein the frequency of vibration applied by the vibration apparatus, fm, and the inherent vibration frequency of the toner hopper mounting part, fs, satisfy the following inequalities:fm/2<fs<2.multidot.fm.