| 摘要 |
image which develops the image density control electrostatic image formed on the image bearing member by the developing apparatus, wherein, in case the detection result by an environment detection portion is changed by a predetermined value or the replenishment developer is renewed, the process advances to a mode of performing the image density control, while performing the replenishing operation by developer replenishing means not depending on the result detected by the image density detection portion but based on the detection result of the developer density detecting means.
|
