Patent ID: 8688014
Filing Date: 2014-04-01
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a developing container in which toner and a magnetic carrier are accommodated; a replenishing container in which replenishment toner is accommodated; a replenishing device which replenishes a developer within the replenishing container into the developing container; a first humidity detection portion which detects information regarding humidity in an atmosphere of the developing container; a second humidity detection portion which detects information regarding humidity in an atmosphere of the replenishing container; a density sensor which detects information regarding a toner density within the developing container; a first controller which controls a replenishing operation of the replenishing device so that the toner density within the developing container is less than or equal to a predetermined value based on a detection result of the density sensor; and a second controller which controls the predetermined value to be small when a difference between humidity detection results detected by each of the first and second humidity detection portions is large as compared to when the difference is small.