To improve an operation feeling when opening or closing a manual paper feed tray 17.

The manual paper feed tray 17 is provided with a first arm 17D and a second arm 17G that extend from a swing shaft 17A to the leading end thereof. An engaging projection 17F that engages with a frame side projection formed on a housing is provided to the leading end of the first arm 17D. Further, when the first arm 17D is deformed toward the second arm 17G, force for bringing the first arm 17D into an original state acts on the first arm 17D from the second arm 17G. Thus, by changing the elastic force of the first arm 17D and the elastic force of the second arm 17G, a user can easily change operating force when opening or closing the manual paper feed tray 17. Consequently, the operation feeling can easily be improved.