Abstract: A sheet conveying device includes a housing provided with first and second side surfaces facing each other, and third and fourth side surfaces substantially orthogonal to the first and second side surfaces and facing each other. An entrance port is formed in the first side surface, an exit port is formed in the second side surface, and a sheet conveying path is formed in the housing. The housing includes first and second guide members constituting the sheet conveying path. The first and second guide members are connected to be pivotally movable relative to each other on the side of the third side surface. A gap portion is formed between the first and second guide members in a region from the connection portion on the side of the third side surface to the first side surface.