Patent ID: 7894747

Claim:
An image forming apparatus comprising: a plurality of process units arranged in tandem, each process unit including a photoconductor drum; a plurality of exposure units, each of which is disposed above and opposite to the corresponding photoconductor drum and is configured to expose the photoconductor drum to light; an output tray disposed above the plurality of exposure units, and configured to receive an ejected recording sheet on which an image has been formed; and an image reader unit disposed above the output tray with a predetermined space provided between the image reader unit and the output tray, and configured to read an image of a source document, wherein all of the exposure units are translationally movable together with the output tray upward and downward between a first position in which the exposure units are allowed to expose the photoconductor drums to light and a second position in which the plurality of exposure units are entirely accommodated in the predetermined space and the plurality of process units are allowed to be pulled out in a direction of tandem arrangement thereof, and wherein a distance between the image reader unit and the output tray varies in accordance with the movement of the plurality of exposure units between the first position and the second position.