Image Division for Large Paper Double-Sided Printing
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Solution Overview
Problem
Conventional image forming apparatuses face inefficiencies when printing on paper sizes exceeding the maximum paper-feed size, requiring multiple prints and increased complexity.
Innovation Solution
An image forming apparatus that acquires and divides images to be printed on large paper sizes into three sections, allowing for efficient printing by forming these sections on folded paper at specific positions, thereby reducing the number of prints required for double-sided printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If paper folded in two is fed to print on large-size paper, then paper size capability is extended, but printing efficiency deteriorates due to requiring at least four prints for double-sided printing
Solution Approach 1:
The front and back images are divided into three separate image sections (first image, second image, and third image) that can be formed on different folded paper configurations. This segmentation allows the system to print different portions of the large-size document on differently folded sheets, thereby reducing the total number of printing operations required while maintaining the ability to handle large paper sizes.
2Manufacturing precision
If conventional four-print process is used for double-sided printing on large paper, then complete coverage is achieved, but time consumption increases
Solution Approach 1:
Multiple image sections that would traditionally require separate printing operations are merged into a single printing process. By dividing the large-size front and back images into three image sections and forming them on paper folded at different positions, the system combines what would be four separate prints into just three prints, thereby reducing total printing time while ensuring complete image coverage.
Data Source
AI summary
An image forming apparatus acquires front and back images to be formed on paper and divides the front and back images of paper into a first image formed a part of the front image, a second image formed of the remaining part of the front image and a part of the back image, and a third image formed of the remaining part of the back image. The image forming apparatus forms the first and second images on the paper folded at the first position, and forms the third image on the paper folded at the second position. The image forming apparatus forms the first to third images such that the part of the front image and the remaining part of the front image constitute the front image and the part of the back image and the remaining part of the back image constitute the back image when the paper is unfolded.