Ink Amount Selection System Optimizing Color Reproduction and Cost

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Solution Overview

Problem

Existing methods for determining ink amount sets for printing devices do not allow users to select appropriate ink amounts based on various applications and indexes, failing to provide means for optimizing ink usage according to specific requirements.

Innovation Solution

A selection system that includes a constraint condition designation section, an evaluation condition designation section, an ink amount calculation section, an evaluation index calculation section, and a notification section, which together allow users to designate constraints and evaluation indices to obtain and present ink amount set candidates optimized for reproducing target colors, considering factors like color reproducibility, light source dependency, and ink cost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If multiple ink amount sets are generated to reproduce target color, then color reproduction capability is improved, but user selection burden increases

Engineering Contradiction:
Improvecolor reproductionVSAvoiduser selection
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The system provides feedback by calculating and presenting evaluation indices (such as color difference, metamerism, and ink amount) for multiple ink amount set candidates, enabling users to make informed selections based on quantitative data rather than trial and error

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The evaluation index serves as an intermediary that bridges the gap between technical ink amount sets and user selection criteria, translating complex printing parameters into understandable evaluation metrics

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of substance

If ink amount is reduced to lower cost, then printing cost is reduced, but color reproduction quality deteriorates

Engineering Contradiction:
Improveink amountVSAvoidcolor reproduction
Core Design Contradiction:
Loss of substanceVSManufacturing precision

Solution Approach 1:

The system changes parameters by generating multiple ink amount set candidates with different ink compositions and evaluating them based on multiple criteria including color reproduction quality and total ink amount, allowing optimization based on specific application requirements

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

Instead of using full ink amounts, the system identifies optimal partial ink amounts that achieve sufficient color reproduction quality while minimizing ink consumption and cost

Inventive Principle:
Principle #16Partial or excessive action

3Measurement precision

If evaluation indices are calculated for multiple ink amount sets, then selection accuracy is improved, but calculation time increases

Engineering Contradiction:
Improveevaluation accuracyVSAvoidcalculation time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary calculations of evaluation indices for multiple ink amount set candidates before presenting them to the user, so that when the user makes a selection, the evaluation data is already ready and no additional calculation time is required

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20250016282A1Selection System, Method, And Computer Program For Selecting Ink Amount Set
Publication Date: 2025.01.09 SEIKO EPSON CORP
  • US20250016282A1 patent drawing
  • US20250016282A1 patent drawing
  • US20250016282A1 patent drawing

AI summary

A selection system includes a constraint condition designation section configured to receive a designation of a constraint condition related to the ink amount set, an evaluation condition designation section configured to receive a designation of an evaluation condition including an evaluation index related to the ink amount set, an ink amount calculation section configured to obtain a plurality of ink amount set candidates by executing an optimization process under the constraint condition, an evaluation index calculation section configured to calculate each of the evaluation indexes for the plurality of ink amount set candidates, and a notification section that is configured to add the evaluation index to each of the plurality of ink amount set candidates and that is configured to present it to a user.