Patent ID: 7731183

Claim:
A paper feeding apparatus comprising: a cassette main body that stacks a paper therein; a sidewall that moves in a width direction of the cassette main body; an end wall that moves in a longitudinal direction of the cassette main body; a first movable member that rotates around a shaft axially fixed to the cassette main body in connection with the sidewall, has a first detection portion, and is connected to the sidewall; a second movable member that rotates around a shaft axially fixed to the cassette main body in connection with the end wall, has a second detection portion, and is connected to the end wall; a first detection unit that detects the size of the paper in the width direction according to the first detection portion; a second detection unit that detects the size of the paper in the longitudinal direction according to the second detection portion; a position correction member that adjusts the position of the sidewall from a reference position in the width direction of the cassette main body; and a connection member that connects the sidewall and the first movable member and moves from the reference position in the width direction of the cassette main body.