Oki Electric Industry Co., Ltd.

Tomomi Ootaka

A transfer unit that transfers a developing agent image formed with a developing agent, includes a belt; and a rotational body that stretches the belt. The rotational body includes a shaft body, and a surface layer provided on an outer side of the shaft body in radial directions. Surface roughness of an outer peripheral surface of the surface layer is greater than a volume mean particle diameter of the developing agent.

Transfer unit and image forming device

A fixation device may include: an annular belt, and includes an elastic layer with a thickness of more than 300 μm; and a counter member opposed to the outer peripheral surface of the annular belt to form a nip region with the annular belt. A difference between a local maximum and a local minimum in a film thickness profile of the annular belt along a circumferential direction of the outer peripheral surface at a first location in a width direction of the annular belt is less than 101 μm.

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Tokyo, Japan

Tomomi Ootaka