| 摘要 |
PROBLEM TO BE SOLVED: To provide a developing device in which temperature rise is restrained by preventing the temperature rise of a roller with simple constitution even when image forming speed is high. SOLUTION: This developing device (1) is equipped with at least one roller inside. In the device (1), for example, a developing roller (3) is provided with a path (18) communicating in an axial direction, and cooled by sending air by an air blower means (20) on either side in the path (18). The device (1) is provided with a member (19) making cooling efficiency high by guiding the air sent from the inside of the path (18) to the inner peripheral surface side of the developing roller (3). |
