Job-Identified Color Charts for Accurate Verification

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Solution Overview

Problem

Existing color verification methods in commercial printers require repeated printing and measurement operations, which can be inconvenient and inefficient, and do not address the issue of performing color verification using inappropriate charts when multiple charts are measured in random order.

Innovation Solution

An information processing apparatus and method that includes a color measurement unit and a verification processing unit, which perform color measurement and verification based on job identifiers printed on color charts, ensuring appropriate chart measurement and reducing the need for repeated operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If multiple charts are measured in random order, then the measurement process is simplified, but the risk of using inappropriate charts increases

Engineering Contradiction:

Improvemeasurement processVSAvoidchart selection accuracy

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system reads the job identifier from each measured chart and compares it with the expected job identifier for that measurement position. This feedback mechanism ensures that only appropriate charts are used for verification, preventing mismatched measurements while maintaining operational simplicity.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The job identifier acts as an intermediary element between the chart and the verification system. By embedding this identifier on the chart and verifying it against the measurement job requirements, the system ensures correct chart selection without requiring complex manual matching procedures.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If printing and measurement are repeated for each color verification, then measurement accuracy is ensured, but operational efficiency decreases

Engineering Contradiction:

Improvecolor verification accuracyVSAvoidverification efficiency

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The system performs color verification measurements on multiple charts in advance, storing the measurement results along with their job identifiers. This preliminary action allows the system to determine the appropriate measurement timing based on stored data, eliminating the need for repeated printing and measurement operations.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system combines multiple color verification measurements into a single measurement session by measuring multiple charts simultaneously or in sequence, storing all results together. This merging approach maintains measurement precision while significantly improving verification efficiency.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12363244B2Information processing apparatus and control method for color verification

Publication Date: 2025.07.15 CANON KK

AI summary

An information processing apparatus includes a color measurement unit configured to perform color measurement on a color chart on which a job identifier is printed by a printing apparatus, and a verification processing unit configured to perform color verification on an image printed by the printing apparatus corresponding to the job identifier, based on a color measurement value measured by the color measurement unit, and the job identifier.