| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image formation device capable of suppressing size increase and also efficiently suppressing a temperature rise in a developer carried by a developer carrier. <P>SOLUTION: An image formation device comprises: an imaging unit 10K; and a pump 30. The imaging unit 10K comprises: a photoreceptor drum 1K; and a developing unit 6K having a developing sleeve of a developing roller 15K and a first agitation conveyance screw 13 formed inside a developer storage part and a second agitation conveyance screw 14. The pump 30 pumps air to rotation-side components of a downstream side bearing part 11a of the first agitation conveyance screw 13 and a downstream side bearing part 12a of the second agitation conveyance screw 14. Thus, the rotation-side components of the downstream side bearing part 11a and the downstream side bearing part 12a of the developing unit 6K are cooled. <P>COPYRIGHT: (C)2013,JPO&INPIT |
