Split Printing Preview with Overlap Visualization

The patent applies preliminary action by pre-calculating and storing overlap area information together with split position information in the split printing information setting unit. This allows the reassembly process to directly use both pieces of information without requiring additional configuration or calculation steps, thereby maintaining low device complexity while ensuring high reassembly precision.

The patent introduces an intermediary element - the overlap area image display unit - that visually represents the overlap area between sub-images. This intermediary provides intuitive feedback to users about the reassembly process, improving precision without adding complex configuration interfaces. The overlap area image acts as a mediator between the raw data (split position and overlap area information) and the user's understanding.

The patent merges split position information and overlap area information into a single integrated data structure stored in the split printing information setting unit. This combining approach allows both types of information to be managed together, reducing the need for separate processing systems and minimizing the increase in device complexity while maintaining improved reassembly precision.

The patent creates a visual copy of the overlap area through the overlap area image display unit, which renders the overlap region as an image based on the stored overlap area information. This copying approach allows users to visualize the overlap without requiring complex computational resources during the actual reassembly process, thus limiting the increase in processing complexity.