POWER SOURCE DEVICE AND IMAGE FORMING APPARATUS

摘要

PROBLEM TO BE SOLVED: To stabilize a voltage to be applied to a developer carrier at an early stage.SOLUTION: There is provided a power source device 9 that applies a voltage to a developer carrier 72 for carrying a developer, and includes: a DC power source part 93 that applies a DC voltage gradually stabilizing to a predetermined level to the developer carrier 72; an AC power source part 94 that applies an AC voltage gradually stabilizing to a predetermined level to the developer carrier 72; a current detection part 95 that detects a current to be input to the developer carrier 72; a voltage correction part 14 that reduces the level of at least one of the DC voltage and AC voltage as the current detected by the current detection part 95 increases; and a development control part 12 that starts application of a first voltage that is one of the DC voltage and AC voltage at a first time point, and starts application of a second voltage different from the first voltage that is the other of the DC voltage and AC voltage at a second time point after the lapse of a predetermined time from the first time point.SELECTED DRAWING: Figure 3