Image Processing Apparatus Excluding Hidden Regions
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Solution Overview
Problem
Image forming apparatuses often print unexpected hidden regions of documents that are not visible in the preview image, leading to user confusion and wastage of consumables.
Innovation Solution
An image processing apparatus that generates separate printing data to exclude hidden regions by comparing the size of the printable medium and the displayed document using coordinate information, allowing users to choose whether to include or exclude these regions, and prints the data using absolute or relative coordinates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the image forming apparatus prints all regions of the document including hidden regions, then the complete document content is printed, but unexpected images are printed that were not visible in the preview image
Solution Approach 1:
The system performs preliminary detection of hidden regions by comparing the printable medium size with the displayed document size using coordinate information before printing. This preliminary action identifies regions that exist in the document but are not visible in the preview image, allowing the system to prepare appropriate printing data that excludes these hidden regions, thereby preventing unexpected printing while maintaining user convenience
Solution Approach 2:
The system uses feedback from the preview image display to determine what should be printed. By comparing the displayed document coordinates with the printable medium coordinates, the system receives feedback about which regions are actually visible to the user, and adjusts the printing data accordingly to exclude hidden regions that would not be expected by the user
2Reliability
If the image forming apparatus prints all regions of the document including hidden regions, then the complete document content is printed, but consumables such as ink, toner, and printable medium are wasted
Solution Approach 1:
The system extracts and removes hidden regions from the printing data by comparing coordinate information between the displayed document and the printable medium. This extraction process separates the visible content that should be printed from the hidden content that should be excluded, thereby preventing waste of consumables on unintended regions while maintaining printing completeness for the intended content
Solution Approach 2:
The system performs preliminary detection and exclusion of hidden regions before the printing process begins. By using coordinate comparison to identify regions that extend beyond the displayed preview area, the system prepares corrected printing data that excludes these regions, preventing unnecessary consumption of ink, toner, and printable medium
Data Source
AI summary
An image processing apparatus includes an image processor which generates printing data of a document displayed as a preview image and a controller which controls the image processor to generate the printing data from which a hidden region is excluded, the hidden region not being displayed when the document is previewed.


