Printed Material Inspection Control for Preserving Product Order
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Solution Overview
Problem
Conventional inspection systems fail to maintain the order of printed products when defects are detected, leading to inconvenience for users handling such materials, especially in cases where the order of printed products is important.
Innovation Solution
An inspection apparatus and method that compares a reference image with printed materials to control the discharge destination, allowing for exclusive control of the inspection mode to switch the discharge destination when defects are recognized, especially in print jobs with sequential orders or multiple printed materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the discharge destination is switched when a defect is detected in printed material, then the inspection quality is improved, but the order of printed products is disrupted
Solution Approach 1:
The system dynamically adjusts the discharge destination based on the inspection results and job type. For general inspection jobs, defective sheets are diverted to a separate discharge destination. For sequential order jobs, the system maintains the original discharge destination to preserve order. This dynamic adaptation resolves the contradiction by making the discharge behavior flexible rather than fixed.
Solution Approach 2:
The system changes the discharge destination parameter conditionally based on the job type and inspection results. When the job type indicates sequential order importance, the discharge destination parameter is set to maintain original position. When it's a standard inspection job, the parameter allows diversion to a separate destination. This parameter-based control enables the system to handle different scenarios appropriately.
2Reliability
If the discharge destination is switched when a defect is detected, then defective products are separated, but user convenience is reduced due to order disruption
Solution Approach 1:
The system dynamically determines the discharge strategy based on the inspected job's characteristics. For jobs where order matters (sequential print jobs), the system maintains original discharge positions to ensure user convenience. For standard jobs, it separates defective products. This dynamic decision-making process balances defect separation with user convenience based on actual job requirements.
3Stability of the object's composition
If the inspection mode exclusively controls discharge destination switching, then the order of printed products is maintained, but defect separation capability is reduced
Solution Approach 1:
The system applies different discharge strategies to different local contexts (job types). For sequential order jobs, it prioritizes order maintenance. For standard inspection jobs, it prioritizes defect separation. This localized quality approach ensures that each job receives the appropriate treatment based on its specific requirements, resolving the contradiction between order maintenance and defect separation capability.
Data Source
AI summary
The present invention provides an inspection apparatus that compares a reference image with a printed material that has been printed to perform inspection of the printed material, and a method of controlling the same. The inspection apparatus exclusively controls, as an inspection mode of the inspection, an inspection mode between a mode for switching a discharge destination of a printed material in which a defect is recognized, and an inspection job of inspecting a printed material printed by a print job in which one copy includes a plurality of printed materials or an inspection type of inspecting printed materials having a sequential order.