Image forming apparatus

An image forming apparatus including an image forming unit configured to form an image on a recording medium, the image forming apparatus comprising:

• a storage unit disposed to be drawable toward a front side of the image forming apparatus and configured to store the recording medium;
• a first stacking unit configured to stack the recording medium on which the image is formed by the image forming unit and which is discharged toward the front side;
• an image reading unit disposed at an upper portion of the image forming apparatus and configured to read an image formed on a document having the image formed thereon in advance;
• a document stacking unit disposed above the first stacking unit and at a front side of the image reading unit and configured to stack the document;
• and
• a second stacking unit configured to stack the document on which the image is formed by the image forming unit and is read by the image reading unit and which is discharged toward a back side of the image reading unit.