To reduce the sagging of an intermediate transfer belt between plural photoreceptors as for a multiple image forming device.
The multiple image forming device is provided with a developing device 13 for developing an electrostatic latent image on a photoreceptor drum 5 arranged in accordance with each color toner image to be developed, a intermediate transfer belt 6 arranged along the photoreceptor drums 5, a driving roller 20 for circular-rotating the intermediate transfer belt 6, a follower roller 22 rotated in accordance with the rotation of the belt 6 by the driving roller, transfer rollers 21 for successively transferring the toner images developed on the respective photoreceptor drums 5 in overlapped state, and auxiliary rollers 30 arranged in front and behind the continuously arranged photoreceptor drums 5 and for pressing the belt 6 against the drums 5 while keeping the belt 6 nearly horizontal to the drums 5 and for bringing the belt 6 into contact with the drums 5.
SHIMADA MASAYA
SUYAMA KOHEI
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