To provide a complex type image forming apparatus which prevents an image reading throughput from degrading when a plurality of functions such as an image reading and image formation are operated independently of each other or simultaneously in cooperation, as a complex type printer having an image reading function.

The complex type image forming apparatus has a control means for slightly driving the entire lens or a portion of the lens in at least one direction through a driving means in accordance with an output of a vibration detecting means and reducing the influence on image deterioration resulting from the vibrations of the complex type image forming apparatus itself caused by an image recording means.