Patent ID: 7731177

Claim:
A sheet supplying device for an imaging apparatus, comprising: a sheet tray configured to mount a plurality of sheets in a stacked state, the sheet tray being inclined such that leading ends, in a sheet feed direction, of the plurality of sheets are lower than trailing ends of the plurality of sheets; a feed roller that faces an uppermost sheet of the plurality of sheets mounted on the sheet tray to be press-contacted to the uppermost sheet, the feed roller being driven to rotate to feed the uppermost sheet; and a sheet guide mechanism having at least one guiding section provided upstream of the feed roller, the guiding section extending in the sheet feed direction, the guiding section being inclined such that the leading ends of the plurality of sheets are moved toward the feed roller by their own weight, the guiding section including a fixed guide surface unmovable with respect to the feed roller and a movable guide surface, wherein the degree of inclination of the movable guide surface, which is larger than a degree of inclination of the fixed guide surface, varies depending on the amount of the plurality of sheets on the sheet tray, and the uppermost sheet of the sheets on the sheet tray is guided to contact the feed roller with the movable guide surface when a first amount of sheets is on the sheet tray, and the uppermost sheet is guided to contact the feed roller with the fixed guide surface when a second amount of sheets that is larger than the first amount is on the sheet tray.