Patent ID: 8573587

Claim:
A sheet material feeding device comprising: a sheet material stacking member that can move sheet material in up and down direction; a send-out means that is pressed to contact with the uppermost surface of the sheet material stacked on the sheet material stacking member so as to move the contact surface in a predetermined direction for sending out the sheet material; a lifting unit that moves both upward and downward, the sheet material stacking member between a feeding position in which the uppermost surface of the sheet material contacts with the send-out means and a separate position in which the uppermost surface of the sheet material is apart from the send-out means; a member to be detected that can move in the up and down direction when the sheet material stacking member moves; a detecting member that can output a detection signal when the member to be detected moves to a predetermined position; and a cassette that supports the sheet material stacking member in a movable manner and can be attached and detached from an apparatus main body, the cassette having an engaging portion for moving the member to be detected to the predetermined position when being attached to the apparatus main body, wherein the lifting unit includes a lifting mechanism that moves both upward and downward, the sheet material stacking member between the feeding position and the separate position, and a lifting motor that drives the lifting mechanism, and when the member to be detected moves to the predetermined position, drive of the lifting motor is stopped.