| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device capable of selecting an optimum setting condition for development even in the case of replenishing a developing device with new developer. SOLUTION: A printer controller 6 selects an initial value as the optimum setting condition for development at the time of replenishing a developing unit 4 with toner, and selects one corresponding condition for an optimum electrification potential value at the time of development from the electrification potential values for a photoreceptor 1 plurally set in advance corresponding to temperature and humidity based on the history of detected temperature and detected humidity detected by an environment sensor 19 for a specified time at every interval of the specified time. |
