Sheet-Specific Image Inspection Using Adaptive Detection Levels
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing inspection methods fail to adapt inspection levels to the specific qualities required by different types of printed products, leading to missed inspections or excessive detection due to uniform inspection settings across varying sheet types.
Innovation Solution
An inspection apparatus and method that dynamically adjusts inspection levels based on sheet management information linked with sheet information, allowing for tailored inspection settings based on the type of sheet used.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If standard inspection is performed at a uniform inspection level for all printed products, then operator workload is reduced, but missed inspection or excessive detection occurs depending on sheet type
Solution Approach 1:
The inspection level is changed from a static uniform setting to a dynamic setting that automatically adjusts based on sheet type. The system dynamically selects appropriate inspection levels by referencing sheet management information that links sheet types with their corresponding inspection levels, thereby maintaining both ease of operation and inspection accuracy.
Solution Approach 2:
Different inspection levels are applied to different sheet types based on their specific quality requirements. High-grade products like catalogs receive higher inspection levels while flyers receive lower inspection levels, ensuring each product type is inspected at the appropriate quality standard without requiring manual operator intervention.
2Measurement precision
If high inspection level is applied to all products, then quality defects are detected, but excessive detection occurs for products not requiring high quality
Solution Approach 1:
The inspection level parameter is changed based on sheet type characteristics. The system stores and retrieves appropriate inspection level parameters from sheet management information, allowing the inspection sensitivity to be adjusted according to the specific quality requirements of each product type, thereby avoiding excessive detection while maintaining necessary defect detection capability.
3Productivity
If low inspection level is applied to all products, then inspection efficiency is maintained, but missed inspection occurs for high-grade products
Solution Approach 1:
The inspection level adapts dynamically to match product requirements. Rather than using a fixed low inspection level, the system automatically adjusts the inspection level based on sheet type, ensuring high-grade products receive thorough inspection while maintaining efficiency for standard products.
Data Source
AI summary
An inspection apparatus detects a defect of an image formed by scanning a sheet with an image formed thereon conveyed from an image forming unit, wherein the detecting the defect is to detect a defect at an inspection level decided based on sheet management information for linking an inspection level with sheet information and sheet information of the sheet with the image formed thereon.