| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming unit contriving the safety of the carrying speed of a belt and realizing miniaturization and the reduction of cost by reducing the number of parts, and an image forming device using the image forming unit. SOLUTION: This image forming unit which can be attached to/detached from an image forming device main body is provided with an endless intermediate transfer belt 5a to which a toner image on a photoreceptor drum 1 is transferred, and a driving roller 40 and a driven roller 41 rotatably supporting the belt 5a. A part where the toner image on the drum 1 is transferred to the belt 5a is positioned between the rollers 40 and 41 in the rotating direction of the belt 5a.
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