Patent ID: 7668500

Claim:
An image forming device, comprising: an image forming device body having an image forming unit in the interior thereof; and a document transport device being attached to the image forming device and being configured to have paper mounted thereon, the document transport device having an original document mounting tray being configured to have original documents mounted thereon and having a mounting surface, movable guide members being configured to match the width of the paper mounted on the mounting surface, and a discharge tray being configured to receive discharged original documents, the discharge tray having an original document discharge unit having an original document discharge mounting surface, and a movable auxiliary mounting unit having an auxiliary mounting surface arranged thereon to extend the original document discharge mounting surface, brightnesses of the original document discharge unit, auxiliary mounting unit, and original document mounting tray being lower than a brightness of the paper to be mounted on the mounting surface of the original document mounting tray, and the brightness of the auxiliary mounting unit and movable guide members being higher than the brightness of other components to which the auxiliary mounting unit and the movable guide members being attached.