3D Preview Display Controller for Image Forming Apparatus

The patent applies dimensionality change by transitioning from traditional two-dimensional pagewise display to a three-dimensional representation of the finished hard copy. The display controller generates a three-dimensional image showing multiple pages stacked and bound together, allowing users to visually grasp the concrete concept and finished state of the hard copy. This three-dimensional visualization includes displaying the bound position, page thickness, and overall structure, which cannot be achieved with conventional two-dimensional displays.

The patent implements dynamics by enabling interactive switching between three-dimensional and two-dimensional display modes. Users can dynamically change the display state: when in three-dimensional mode showing the finished hard copy, users can select specific pages to view in detail, which then switches to two-dimensional display for that page. This dynamic switching allows users to first grasp the overall finished state through 3D visualization, then examine specific page details through 2D display, and return to 3D view to see how the detailed page fits into the complete hard copy.

The patent applies preliminary action by providing a comprehensive preview function that displays the finished hard copy state before actual printing occurs. The display controller generates three-dimensional images showing the bound position, page composition, and overall structure of the finished product. Users can examine this preview, confirm whether the page composition and binding meet their requirements, and make adjustments before initiating the printing process. This preliminary visualization prevents unintended printouts and reduces waste of recording paper and developer by ensuring users only print when satisfied with the expected output.