Patent ID: 7997574

Claim:
An image forming apparatus comprising: an apparatus body which includes an attachment portion, wherein the apparatus body includes a wall portion which defines a periphery of the attachment portion; a standby tray which is provided adjacent to the attachment portion of the apparatus body and stacks a paper thereon; a paper feeding tray which is movable between a mounted position where the paper feeding tray is mounted to the inside of the attachment portion and forms a paper conveying path together with the standby tray and a withdrawn position where the paper feeding tray is withdrawn from the inside of the attachment portion in a protruding manner and stacks the paper thereon; a movement mechanism which moves the paper from the paper feeding tray at the mounted position onto the standby tray along the paper conveying path; a holder member which moves to a first position so as to hold the paper at a predetermined position on the paper feeding tray when the paper feeding tray is at the withdrawn position and moves to a second position so as to recede from the paper conveying path when the paper feeding tray is at the mounted position; and a lock mechanism which engages with the holder member so as to hold the holder member at the first position when the paper feeding tray is at the withdrawn position, wherein when the paper feeding tray moves from the withdrawn position to the mounted position, the lock mechanism releases the engagement with the holder member by coming into contact with the wall portion.