Braille Test Chart Parameter Variation for Paper-Consistent Printing

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Solution Overview

Problem

Ink jet printers face variations in braille character printing quality due to differences in recording paper types, leading to undesired printing results.

Innovation Solution

An information processing apparatus generates test chart image data with varying parameters for braille patches, including a first and second braille patch, to ensure consistent printing quality across different paper types.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If standard braille printing parameters are used, then printing process is simple, but printing quality varies with different paper types

Engineering Contradiction:
Improvebraille character printing qualityVSAvoidprinting parameter complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies local quality by creating different braille patch types (first braille patch with first parameter, second braille patch with second parameter) where each patch type has optimized parameters for specific paper types. This allows the printing system to adapt parameters locally for different patches rather than using uniform parameters, thereby maintaining high printing quality across various paper types without requiring complex real-time parameter adjustment mechanisms.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements preliminary action by pre-defining multiple braille patch types with predetermined parameters in the test chart image data. Instead of adjusting parameters during the printing process based on paper type detection, the system prepares multiple parameter configurations in advance, allowing the printer to simply select the appropriate pre-configured patch type for the given paper, thus maintaining process simplicity while ensuring quality.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If uniform parameters are used for all braille patches, then data structure is simple, but printing consistency across different paper types deteriorates

Engineering Contradiction:
Improveprinting consistencyVSAvoidtest chart data complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by incorporating multiple parameter variations (first parameter for first braille patch, second parameter for second braille patch) within the test chart data structure. This allows the system to maintain reliability across different paper types by selecting appropriate parameter sets, while the overall data structure remains relatively simple as it only requires adding parameter variation fields to the existing braille patch data format.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20250267233A1Information processing apparatus, storage medium, and test chart
Publication Date: 2025.08.21 SEIKO EPSON CORP
  • US20250267233A1 patent drawing
  • US20250267233A1 patent drawing
  • US20250267233A1 patent drawing

AI summary

An information processing apparatus includes a generator configured to generate test chart image data for causing a printing apparatus ejecting ink to print a test chart image including a plurality of braille patches, the plurality of braille patches including a first braille patch and a second braille patch, and a transmitter configured to transmit the test chart image data to the printing apparatus. The generator is configured to cause a first parameter related to a first dot included in the first braille patch to differ from a second parameter related to a second dot included in the second braille patch.