| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming apparatus that can output good images even in the initial use of developing means.SOLUTION: An image forming apparatus includes a controller part 9. In the initial supply of a toner to a developing device 4, when a developing bias power source 41 applies an AC voltage to a developing roller 4a before a toner t reaches an electrode member 4h, if an induction voltage Vi that is induced to the electrode member 4h according to the capacitance between the developing roller 4a and the electrode member 4h is a predetermined value, the controller part 9 changes toner supply control. |
