Inkjet Printing Device Dynamic Waveform Control
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Solution Overview
Problem
Existing inkjet printing technologies face inefficiencies in changing the driving waveform of the driving signal, which can disrupt printing processes and require additional configurations or stopping of the print head.
Innovation Solution
The method involves using a controller to apply a first control signal that changes the driving waveform of the driving signal and a second control signal that adjusts the voltage setting of the driving waveform, allowing for dynamic changes without stopping the print head.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the driving waveform of the driving signal is changed using existing inkjet printing technologies, then the printing process is disrupted and the print head must be stopped, but this reduces printing efficiency and productivity
Solution Approach 1:
The patent applies the dynamics principle by enabling real-time adjustment of the driving waveform parameters (voltage, frequency, pulse width) during the printing process through a controller that receives modified driving signals. This allows the system to adapt to different printing requirements dynamically without stopping the print head, thereby maintaining high productivity while improving waveform change capability.
Solution Approach 2:
The controller pre-processes and stores multiple driving waveforms with different parameters before they are needed. When a waveform change is required, the system retrieves the appropriate pre-configured waveform from memory, eliminating the need to stop and reconfigure during printing. This preliminary preparation resolves the contradiction by enabling smooth transitions between different driving waveforms without interrupting printing operations.
2Adaptability or versatility
If separate configurations are used to change the driving waveform, then the print head must be stopped for reconfiguration, but this increases the time loss and reduces overall printing efficiency
Solution Approach 1:
The patent merges the driving waveform generation and modification functions into a single integrated controller that operates continuously during printing. The controller combines the driving signal generation with real-time parameter adjustment capabilities, eliminating the need for separate configuration systems. This integration allows waveform changes to occur seamlessly during printing operations, reducing time loss while maintaining adaptability.
Solution Approach 2:
The system maintains continuous printing operation by enabling the controller to modify driving waveforms in real-time without interrupting the print head movement or ink discharge process. The useful action of printing continues uninterrupted while the driving waveform parameters are adjusted through continuous signal modification, thereby eliminating configuration time losses.
3Productivity
If the voltage setting of the driving waveform is adjusted during printing, then printing efficiency improves, but this requires precise control mechanisms that increase device complexity
Solution Approach 1:
The patent applies parameter changes by modifying key driving waveform parameters (voltage amplitude, frequency, pulse width modulation) through software control rather than hardware reconfiguration. The controller adjusts these parameters dynamically based on printing requirements, enabling efficient voltage adjustment during printing. This approach reduces device complexity by using software-based parameter modification instead of complex hardware switching mechanisms.
Solution Approach 2:
The system replaces mechanical or hardware-based voltage switching mechanisms with electronic signal processing and software control. The controller uses electrical signal modification to adjust driving waveform parameters, substituting complex mechanical reconfiguration systems with simpler electronic parameter adjustment. This substitution reduces device complexity while maintaining the ability to adjust voltage settings for optimized printing efficiency.
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
This approach enhances the efficiency of inkjet printing by enabling changes to the driving waveform and voltage settings during printing, eliminating the need for separate configurations and ensuring continuous operation.
Implementation Method 1
the piezoelectric element refers to an element that changes its shape by generating pressure in case that voltage is applied
Data Source
AI summary
A method of inkjet printing includes applying a driving signal to a head through a controller, the head including nozzles, driving the head in response to the driving signal, and applying a first control signal that changes a driving waveform of the driving signal to the head through the controller.