Patent ID: 7857306

Claim:
A medium stacker apparatus comprising: a stacking portion having a first stacking portion and a second stacking portion, initially arranged adjacent to each other so that a surface of the first stacking portion is connected with a surface of the second stacking portion, the surface of the first stacking portion being in linear alignment with the surface of the second stacking portion, for stacking a medium discharged from a delivery section formed at an upper portion of an apparatus housing, the stacking portion comprising: the first stacking portion secured to the apparatus housing; and the second stacking portion arranged to be pivotally movable separately from the first stacking portion to above the first stacking portion, a pivotal center of the second stacking portion arranged at a same side thereof as the delivery section with respect to the first stacking portion in a medium discharging path, when seen from the second stacking portion; and a top cover surface arranged above the delivery section; wherein the first stacking portion is formed in proximity to the delivery section, between the second stacking portion and the pivotal center of the second stacking portion; wherein the delivery section is arranged within a circle defined by rotation of the second stacking portion about the pivotal center of the second stacking portion; wherein the second stacking portion is pivotally movable to a vertical position to press the medium against the top cover surface; and wherein the second stacking portion comprises an escaping portion at an end thereof adjacent to the first stacking portion, the escaping portion being configured to rotate to escape from a medium stacking surface of the second stacking portion in a direction opposite to a direction in which the second stacking portion pivotally moves separately from the first stacking portion.