Patent ID: 8687211

Claim:
An image forming apparatus that finishes recording mediums with images formed thereon as a hard copy, comprising: an input unit for acquiring image data; an image forming portion that forms images on recording mediums based on the image data input through the input unit; and, an image display operating device including a display portion that displays a preview image based on the image data and a display controller that has a function of presenting plural pages of document images in preview representation on the display portion, wherein the display controller includes: a finished state preview display controller that displays the finished state of the hard copy that the image forming apparatus can form as a preview image on the display portion and, a confirmatory display controller that displays the preview image displayed on the display portion so that each page of the preview image can be turned over, and, the display portion includes: with respect to preview display region for displaying the preview image, a first display area for three-dimensionally displaying the finished state of the hard copy; a second display area for displaying an image for each page associated with the finished states that has been displayed in the first display area, while turning the page in turn; and, a third display area for three-dimensionally displaying the pages that have been turned in the second display area with the pages stacked in turned order, wherein, when image forming is performed on both sides of the recording medium, in the second display area, the image of the back side of the page to be turned is displayed after the image of front side of the page to be turned has been displayed, and afterward the image of the page to be turned is displayed in such a manner as to be moved to the third image area, and when the image of the front side of the page to be turned is displayed, the image of the front side is located closer to the first display area, and when the image of the back side of the page to be turned is displayed, the image of the back side is located closer to the third display area.