Printed Material Inspection Modes for Defect Sorting and Order Control
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Solution Overview
Problem
Conventional inspection systems cannot accurately distinguish between printed materials with defects and those without, leading to potential misordering and inconvenience when handling printed products with sequential or ordered content.
Innovation Solution
An inspection apparatus and method that compares reference images with printed materials, allowing for exclusive control of inspection modes to maintain the order of printed materials by not switching the discharge destination based on inspection results, even if defects are detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a discharge destination is switched when a defect is detected in printed material, then defect detection capability is improved, but the sequential order of printed materials is disrupted
Solution Approach 1:
The patent segments the inspection system into two distinct modes: a first inspection mode that maintains discharge destination stability for sequential materials, and a second inspection mode that enables defect-based discharge switching. This segmentation allows the system to preserve order when needed while still providing defect detection capabilities when required.
Solution Approach 2:
The patent implements dynamic switching between inspection modes based on the type of printed material being inspected. The system can transition from a static discharge destination (maintaining order) to a dynamic discharge destination (separating defects) depending on whether the material requires sequential integrity or defect separation.
2Reliability
If the discharge destination is switched based on inspection results, then quality control is improved, but user convenience deteriorates due to misordered printed products
Solution Approach 1:
The patent divides quality control into two operational segments: one that prioritizes maintaining sequential order for user convenience, and another that prioritizes defect separation for quality control. The system selects the appropriate segment based on the inspection job requirements.
Solution Approach 2:
The patent changes the operational parameter of discharge destination switching based on the inspection mode. In the first mode, the discharge destination parameter remains constant to maintain order; in the second mode, the discharge destination parameter varies based on inspection results to ensure quality control.
3Adaptability or versatility
If inspection mode switches between defect separation and order maintenance, then versatility is improved, but device complexity increases
Solution Approach 1:
The patent creates a universal inspection system that can perform multiple functions: maintaining sequential order for certain materials and separating defects for others. This multi-functionality is achieved through a single inspection apparatus that can operate in different modes rather than requiring separate systems.
Solution Approach 2:
The patent employs dynamic mode switching that allows the inspection system to adapt its behavior based on the inspection job requirements. The control system dynamically adjusts between order-maintenance mode and defect-separation mode, providing versatility without requiring multiple static systems.
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.