Inkjet Recording Device Voltage Control Print Clearance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Inkjet recording devices with twin-nozzle print heads face challenges in correcting the incline of characters printed by two nozzles and adjusting the clearance between prints without decreasing the transport speed of the printed object.
Innovation Solution
The device employs two sub-print heads with nozzles, charging electrodes, deflection electrodes, and gutters, allowing for control of the voltage applied to these components to adjust the clearance between prints formed by two nozzles, enabling correction of print inclines and maintaining high-speed printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If voltage is applied to charging and deflection electrodes to adjust clearance between prints, then print incline correction is enabled, but device complexity increases
Solution Approach 1:
The patent applies voltage parameters to charging and deflection electrodes to control the trajectory of ink particles. By adjusting voltage magnitudes and polarities, the system corrects print inclines and adjusts clearance between prints from multiple nozzles, enabling precision control without mechanical modifications.
2Length of moving object
If print head structure with converging nozzles is used, then space between prints is reduced, but print incline correction becomes difficult
Solution Approach 1:
The patent uses voltage parameter adjustments on deflection electrodes to counteract the converging nozzle geometry. By applying differential voltages, the system corrects the incline of printed characters while maintaining the compact converging structure, thus preserving both space efficiency and print quality.
Solution Approach 2:
The deflection electrodes are positioned to preemptively counteract the incline problem caused by converging nozzles. The voltage application creates an opposing force that compensates for the geometric convergence, preventing print quality degradation before it occurs.
3Manufacturing precision
If two rows of printing are configured for one nozzle, then clearance between prints is adjusted, but transport speed must be decreased
Solution Approach 1:
Instead of mechanical row configuration, the patent uses voltage parameter changes on deflection electrodes to adjust the vertical position of printed lines. This electrical control method achieves clearance adjustment without requiring reduced transport speed, maintaining high productivity while achieving precise spacing control.
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 solution allows for effective adjustment of the clearance between prints and correction of print inclines, enabling high-speed printing without compromising print quality or increasing space between prints.
Implementation Method 1
a charging electrode for charging the ink particles
Implementation Method 2
a deflection electrode for deflecting the charged ink particles
Data Source
Figure 1
Figure 2~4
Figure 5~7
AI summary
An object of the present invention is to provide an inkjet recording device capable of adjusting a clearance between prints formed by two nozzles (114, 115), and capable of printing a print content at a high speed. In order to achieve the object, there is provided an inkjet recording device which has two sub-print heads including nozzles (114, 115), charging electrodes (116, 117), deflection electrodes (118, 119), and gutters (120, 121), in which the two nozzles are disposed in a deflection direction of ink particles, and which performs printing on a printed object (124) while moving the printed object (124) relative to the ink particles in a direction substantially perpendicular to the deflection direction of the ink particles, the inkjet recording device having a function for reducing a clearance between print results (125, 126), printed by the two nozzles (114, 115), by controlling a voltage applied to the charging electrodes (116, 117) and a voltage applied to the deflection electrode (118, 119) .