Inkjet Printing System Dynamic Waveform Control
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Solution Overview
Problem
Industrial inkjet printers face precision issues due to changes in ink viscosity and material expansion with temperature, when using general-purpose inkjet drivers.
Innovation Solution
A printing system and method that includes a controller for generating printing data, a user device for generating control commands and modulation data, an additional controller for receiving data and generating driving signals, and a printing device for performing the printing operation based on the driving signal. The system uses pre-stored waveform information to enhance precision by adjusting the driving signal based on user input and learned algorithms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a general-purpose inkjet driver is used to generate a uniform and unified ejection waveform, then the device complexity is reduced and ease of operation is improved, but manufacturing precision deteriorates due to changes in ink viscosity and material expansion according to temperature
Solution Approach 1:
The patent applies dynamics by transitioning from a static, uniform ejection waveform to a dynamic, variable waveform. The controller adjusts the ejection waveform based on real-time temperature and viscosity measurements, allowing the system to adapt to changing conditions while maintaining precision without requiring complex manual intervention.
Solution Approach 2:
The patent implements feedback by incorporating temperature sensors and viscosity measurement systems that continuously monitor the ink and material conditions. This feedback information is fed back to the controller, which then adjusts the ejection waveform accordingly, creating a closed-loop control system that maintains manufacturing precision while operating automatically.
2Manufacturing precision
If the ejection waveform is adjusted dynamically based on temperature and viscosity changes, then manufacturing precision is improved, but device complexity increases due to additional sensors and control mechanisms
Solution Approach 1:
The system applies self-service by enabling automatic adjustment of the ejection waveform based on sensor feedback. The controller autonomously processes temperature and viscosity data to modify the waveform without requiring external manual intervention, reducing operational complexity while maintaining high precision through automated adaptive control.
3Productivity
If pre-stored waveform information is used based on modulation data, then the speed of printing operation is improved, but measurement precision may deteriorate due to reliance on pre-stored rather than real-time adjusted waveforms
Solution Approach 1:
The patent applies preliminary action by pre-storing multiple waveform information corresponding to different temperature and viscosity conditions. This allows the system to quickly retrieve and apply the most appropriate waveform without real-time calculation, significantly improving printing speed while maintaining precision through pre-computed optimal waveforms based on sensor readings.
Solution Approach 2:
The system dynamically selects from pre-stored waveforms based on real-time temperature and viscosity measurements. This dynamic selection process allows the system to maintain high precision by choosing the most appropriate pre-computed waveform for current conditions while achieving fast printing speeds through direct retrieval rather than real-time generation.
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 proposed solution enhances the precision of the printing process by allowing for dynamic adjustments in ink ejection locations and volumes, thereby improving the uniformity and accuracy of the printed patterns.
Implementation Method 1
a piezoelectric element layer disposed below the chamber
Data Source
AI summary
A printing system and a printing method, in which precision of a printing process may be enhanced, the printing system may include a controller configured to generate printing data, a user device configured to generate a first control command, generate modulation data based on a user input, and generate a second control command based on the user input, an additional controller configured to receive the printing data and the second control command and generate a driving signal based on the second control command, and including a memory storing waveform information received from the user device, and a printing device configured to perform a printing operation based on the driving signal.