Printing System Odd-Even Page Sorting for Double-Side Flipping
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Solution Overview
Problem
Existing printing systems face challenges in performing automatic double-side printing on print media with distinguished surfaces, requiring efficient flipping and positioning mechanisms to ensure good printing conditions.
Innovation Solution
A printing system with a printing mechanism and a carrying mechanism that flips and repositions print media to perform single-side and double-side printing operations, including first and second double-side printing modes, while maintaining consistent flipping operations across both modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If double-side printing is performed on print media with distinguished surfaces, then printing quality is improved, but the number of flipping operations increases
Solution Approach 1:
The patent applies inversion by printing odd-numbered pages on the front surface and even-numbered pages on the back surface, rather than printing consecutive pages on the same surface. This approach maintains consistent flipping operations while achieving high-quality double-side printing on media with distinguished surfaces.
Solution Approach 2:
The system performs preliminary sorting of pages into odd and even groups before the printing process. This preliminary action allows the printing mechanism to efficiently handle double-side printing with consistent flipping operations, reducing the overall number of flipping operations required.
2Adaptability or versatility
If different printing modes are supported, then versatility is improved, but device complexity increases
Solution Approach 1:
The printing system is designed with multi-functionality to support single-side printing, double-side printing, and different page distribution modes. The control mechanism universally handles these modes by sorting pages into odd and even groups, which can be applied across all printing modes without requiring separate control systems.
Solution Approach 2:
The system dynamically adjusts its operation based on the selected printing mode. The page sorting and distribution mechanism can flexibly switch between different printing modes (single-side, double-side, first double-side, second double-side) while maintaining consistent flipping operations, thereby supporting versatility without proportionally increasing complexity.
3Productivity
If page order is optimized for double-side printing, then printing efficiency is improved, but consistency with single-side printing decreases
Solution Approach 1:
The patent applies local quality by treating odd-numbered pages and even-numbered pages differently in the sorting process. Odd pages are assigned to the front surface and even pages to the back surface, optimizing the page order for double-side printing while maintaining local consistency within each surface group.
Solution Approach 2:
The system introduces asymmetry in page distribution by separating odd and even pages into different surface groups. This asymmetric approach optimizes printing efficiency for double-side printing while maintaining a systematic and consistent pattern that can be uniformly applied across different printing modes.
Data Source
AI summary
A printing system performs first double-side printing when double-side printing is designated to a first print medium sides of which are distinguished from each other, and second double-side printing when the double-side printing is designated to a second print medium sides of which are not distinguished from each other, and a print page printed on a first surface set face-down when being fed out of a plurality of print pages included in print data is different between the first double-side printing and the second double-side printing.