Drive Waveform Selection via Multi-Axis Visualization
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Solution Overview
Problem
Existing liquid ejection apparatuses, such as ink jet printers, face challenges in determining optimal drive waveforms for ink ejection, as current techniques do not effectively utilize characteristic data obtained during the waveform search process, limiting the identification of valuable resources for improving ejection performance.
Innovation Solution
An information processing apparatus that acquires and displays various pieces of information related to drive waveform candidates, allowing users to associate and visualize first and second evaluation information on axes, enabling the selection of Pareto optimal solutions for determining the drive waveform, thereby optimizing ink ejection characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multi-objective optimization is performed to search for drive waveforms, then ejection performance is improved, but the ability to utilize and learn from characteristic data obtained during the search process is lost
Solution Approach 1:
The patent recovers and reuses the characteristic data that would otherwise be discarded during the multi-objective optimization search process. By storing evaluation information for each drive waveform candidate and making it accessible for later analysis, the system transforms wasted computational results into valuable resources for understanding waveform characteristics and guiding future optimizations.
2Manufacturing precision
If multiple parameters of drive waveform candidates are used for optimization, then ejection performance is improved, but the complexity of analyzing and selecting the best waveform increases
Solution Approach 1:
The patent addresses the complexity of analyzing multiple parameters by introducing a visual display dimension. The characteristic data display unit presents evaluation information in a graphical interface that allows users to visually compare multiple drive waveform candidates across different parameters simultaneously, transforming complex multi-dimensional data into an intuitive visual format that simplifies analysis and selection.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus effectively determines and displays drive waveforms that optimize ink ejection characteristics, allowing users to easily understand and select the best waveform for desired performance, enhancing the ejection process by utilizing valuable characteristic data.
Implementation Method 1
a liquid such as an ink is ejected from a nozzle by applying a drive pulse to a drive element such as a piezoelectric element
Data Source
AI summary
Provided is an information processing apparatus used in order to determine a drive waveform to be applied to a liquid ejection head, including: an acquisition unit that acquires a plurality of pieces of information being different from one another in terms of each of a plurality of candidates for the drive waveform; a first reception unit that receives input by a user concerning association of first evaluation information out of the plurality of pieces of information with a first axis and association of second evaluation information out of the plurality of pieces of information with a second axis intersecting with the first axis; and a first display unit that performs display corresponding to the candidates for the drive waveform while associating the first evaluation information with the first axis and associating the second evaluation information with the second axis.