Digital Printing System Page Layout Optimization
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Solution Overview
Problem
The challenge in manufacturing printed products efficiently and cost-effectively while minimizing paper waste arises from the need to manage varying order sizes and optimize the arrangement of pages on printing sheets to reduce blank pages and waste.
Innovation Solution
A method that defines subbatches of pages, creates layouts, and separates them into groups to minimize the difference in page numbers across groups, allowing for efficient printing on stacks of sheets with layouts positioned in columns, using algorithms like First Fit, Best Fit, Worst Fit, and Almost Worst Fit to assign subbatches and insert blank pages as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If pages are arranged on printing sheets without optimization, then the manufacturing process is simple, but paper waste increases due to blank pages
Solution Approach 1:
The patent segments pages into subbatches and further divides them into groups that can be efficiently arranged on printing sheets. By breaking down the overall printing task into smaller manageable units (subbatches and groups), the system optimizes page arrangement to minimize blank pages while keeping the complexity of individual layout tasks manageable.
Solution Approach 2:
The patent applies preliminary action by pre-defining subbatches and pre-arranging pages into groups before the actual printing process. This advance organization of pages into optimally sized groups allows the printing system to minimize waste without increasing the complexity of the printing operation itself, as the optimization work is completed in the planning stage.
2Productivity
If pages are grouped to minimize waste, then paper usage is optimized, but the manufacturing process becomes more complex
Solution Approach 1:
The patent segments the manufacturing process into distinct phases: defining subbatches, creating layouts, separating into groups, and printing. This segmentation allows each phase to be optimized independently, improving overall productivity while managing complexity through modular processing steps.
Solution Approach 2:
The patent changes parameters such as the number of pages per group and the arrangement configuration to optimize productivity. By adjusting these parameters based on the specific printing requirements, the system achieves high manufacturing efficiency without requiring overly complex processes, as parameter optimization is more straightforward than structural complexity.
3Adaptability or versatility
If subbatches are separated into many groups, then page arrangement flexibility increases, but the difference in page numbers across groups increases
Solution Approach 1:
The patent applies local quality by allowing different groups to have different characteristics based on their specific requirements. Each group can be optimized for its particular content and size requirements, providing arrangement flexibility, while the overall system maintains balance by controlling the difference in page numbers across groups through the grouping algorithm.
Solution Approach 2:
The patent uses parameter changes to balance arrangement flexibility with page number equality. By adjusting parameters such as the maximum number of pages per group and the distribution strategy, the system achieves sufficient flexibility for different page arrangements while maintaining precision in balancing the page numbers across groups.
Data Source
AI summary
A method for manufacturing printed page products includes defining a plurality of subbatches each comprising one or more of the pages, creating layouts for the pages in the plurality of subbatches, separating the plurality of subbatches into N groups each comprising a total number of pages equal or less than M, minimizing the difference between the total pages in the N groups and M×N, and printing the layouts of the pages on a stack of sheets each configured to contain layouts for N pages. The layouts of the pages in the stack of sheets are positioned in N columns.