Image forming apparatus to control output of paper sheets onto a receiving tray

摘要

An image forming apparatus which can control a number of paper sheets to be stacked onto a paper receiving tray based on a read paper sheet size. This structure is particularly relevant if a receiving paper tray is inclined and has an area above the paper receiving tray limited by a structure formed above the paper receiving tray. A height of stacked paper sheets on the paper receiving tray can be sensed, and a number of paper sheets allowed to be stacked on the paper receiving tray can be limited based on the read paper size and the sensed height of the stack of paper sheets. Further, the number of paper sheets allowed to be stacked onto the paper receiving tray can be limited based on the read paper size.