To provide a paper feeder capable of selectively feeding a plurality of types of sheets and capable of suppressing an increase in the number of components.

A sheet feeder includes: a first sheet storage unit storing therein a first sheet; a second sheet storage unit storing a second sheet, and arranged in a direction orthogonal to the first sheet storage unit and a sheet feed direction; a paper feed roller arranged between the first sheet storage unit and the second sheet storage unit; and moving means for moving the paper feed roller between a first paper feed portion for feeding the first sheet and a second paper feed position for feeding the second sheet.