Image forming apparatus including a reversing feeding unit

An image forming apparatus, comprising:

• a main body;
• a printing unit which is contained in the main body and performs printing for a printing medium;
• a storage unit which is installed on the main body and stores the printing medium printed through the printing unit;
• and
• a reverse-feeding unit which changes a path of the printed printing medium to feed towards the storage unit, the reverse-feeding unit comprising:
• a frame which forms a first feeding path along which a printing medium is fed and a second feeding path which is branched off from the first feeding path;
• a guide plate which moves between a first position in which the printing medium fed along the first feeding path is supported and a second position in which the supported printing medium is directed towards the second feeding path;
• and
• a plate driving unit which drives the guide plate to be moved to one of the first position and the second position.