SHEET CONVEYING DEVICE AND IMAGE FORMING DEVICE

PROBLEM TO BE SOLVED: To provide an inexpensive sheet conveying device which can respond to requirements of resource saving and energy saving, and can suppress the generation of wrinkles resulting from the waving of a sheet even if using a thin sheet such as thin paper light in basic weight.SOLUTION: A sheet conveying device comprises a plurality of belt stretching units 20 composed of a plurality of main rollers 21 and a plurality of conveying belts 25 stretched to the plurality of main rollers 21, constitutes a sheet conveying passage by arranging the belt stretching unit 20a and the belt stretching unit 20b so as to oppose each other, and grips and conveys a sheet P. In the belt stretching unit 20a in the respective belt stretching units 20, the plurality of conveying belts 25a, 25b are stretched so that an interval of the belts may be expanded as progressing toward the downstream side of a sheet conveying direction.