Print Inspection Device Dynamic Pass-Fail Criterion Adjustment
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Solution Overview
Problem
Existing print material inspection technologies face challenges in accurately controlling the number of failed print materials, leading to either shortages or surpluses, which affect both print cost management and quality control.
Innovation Solution
A device and method that acquire evaluation values for print materials based on quality indicators like streaks, contamination, unevenness, and character visibility, determining a pass/fail criterion to ensure the number of failed products is within allowed limits, thereby controlling the output effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If detection conditions for defects are set severely, then quality control is improved, but the number of failed print materials increases and output sheet shortage occurs
Solution Approach 1:
The patent applies dynamics by making the determination criterion adjustable rather than fixed. The criterion can be dynamically set based on the allowed number of failed products, enabling the system to adapt between strict quality control and production efficiency requirements. This resolves the contradiction by allowing flexible adjustment of the pass/fail threshold according to operational needs.
Solution Approach 2:
The patent changes the parameter of the determination criterion based on the allowed number of failed products. By adjusting this parameter, the system can optimize the balance between quality control and output sheet availability. When the allowed number of failures is low, the criterion becomes stricter; when it is high, the criterion becomes more lenient, thus resolving the contradiction between quality and productivity.
2Productivity
If detection conditions for defects are set loosely, then productivity is improved, but the number of failed print materials decreases and surplus print occurs
Solution Approach 1:
The system dynamically adjusts the determination criterion based on the allowed number of failed products, preventing both surplus print and output sheet shortage. By making the criterion flexible rather than fixed, the system can adapt to different production scenarios and resolve the contradiction between productivity and quality control.
Solution Approach 2:
The patent implements feedback by using the actual number of failed products to adjust the determination criterion. This feedback mechanism ensures that the system learns from actual performance and optimizes future inspections, resolving the contradiction between loose detection conditions and quality control requirements.
3Ease of manufacture
If the number of failed print materials is empirically determined, then simplicity is maintained, but accurate control of output sheets cannot be achieved
Solution Approach 1:
The system performs self-adjustment by automatically determining the appropriate determination criterion based on the allowed number of failed products. This self-service mechanism eliminates the need for complex external intervention while achieving precise control of output sheets, resolving the contradiction between simplicity and precision.
Data Source
AI summary
This object is solved by a device for inspecting a print material, including evaluation value acquisition means for inspecting a plurality of print materials and acquiring an evaluation value indicating quality of each print material, allowed-number-of-failed-product acquisition means for acquiring an allowed number of failed products among the plurality of print materials, determination criterion determination means for determining a determination criterion in which the number of failed products is equal to or smaller than the allowed number of failed products and a sum of evaluation values of passed products becomes a highest-quality value, pass and fail determination means for determining pass or fail of each print material on the basis of the determination criterion and the evaluation value of each print material, and output means for outputting a determination result of the pass and fail determination means.