Abstract:
An image forming apparatus including an image forming apparatus body, a printing engine installed in the image forming apparatus body and used to print an image on a printing medium supplied to the printing engine, a printing medium supply device having a loading plate to load printing media thereon and a frame to support the loading plate, the printing medium supply device being coupled to the image forming apparatus body to supply the printing media to the printing engine, and a pickup device to pick up the printing media loaded in the printing medium supply device one by one and to convey each picked-up printing medium to the printing engine. The printing medium supply device includes a printing medium aligning unit to push a lateral portion of the printing media when the printing media is loaded on the loading plate, so as to align the loaded printing media. With this configuration, the printing media loaded on the loading plate is automatically aligned by the printing medium aligning unit.