Abstract: To provide an image forming device for forming images by stably supplying a developing agent in a high density cloud form and by controlling the flight/non-flight at a low voltage and in which the influence of the position of the control electrodes upon the accuracy is less. A developing agent carrier carries a developing agent T which is charged to a given polarity. The developing agent is placed in a electric field for causing the developing agent to fly in a direction of an arrow, which is formed by an opposing electrode (not shown) so that it forms images upon a recording medium (not shown) which is moving on the opposing electrode. A first and second control electrode layers are provided between the opposing electrode and a developing agent carrier. Control electrodes which control the passage of the developing agent through the gates of respective layers are provided.