| 摘要 |
PROBLEM TO BE SOLVED: To provide an image formation device that can efficiently determine a voltage value of a voltage to be applied when developing an electrostatic latent image.SOLUTION: An image formation device 100 comprises: a first roller 151; a second roller 51; a first voltage application part 81; and a control unit 6. The first roller 151 has an electrostatic latent image formed, and the second roller 51 is arranged to face the first roller via a first gap G1. The first voltage application part 81 is configured to apply a voltage to the second roller 51. The control unit 6 is configured to: determine a first voltage value to be applied to the second roller 51 upon developing the electrostatic latent image; determine a first interval unevenness value indicative of a size of the interval unevenness of the first gap G1; make the voltage to be applied to the second roller 51 gradually larger, and determine a first index value by performing a discharge measurement at each stage; and determine the first voltage value on the basis of the first interval unevenness value and the first index value.SELECTED DRAWING: Figure 7 |
