Liquid Ejection System Drying Control for Wrinkle Prevention
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Solution Overview
Problem
Existing liquid ejecting systems face challenges in maintaining printing quality, particularly in high-temperature and high-humidity environments, where reduced liquid ejection can affect color development and lead to printing quality deterioration due to wrinkles in the medium.
Innovation Solution
A liquid ejecting system that includes an environmental information acquiring unit, an ejecting unit, a drying unit, and a control unit, which acquires medium type and ejection amount information to adjust liquid ejection and drying conditions based on environmental parameters like temperature and humidity, using a storage unit to associate these parameters with optimal ejection and drying settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the ejection amount of liquid is reduced in high-temperature and high-humidity environments to prevent wrinkles, then the occurrence of wrinkles is inhibited, but the color development of the printed material deteriorates
Solution Approach 1:
The system changes the drying parameter (heating temperature) based on environmental conditions (temperature and humidity) while keeping the ejection amount constant. The control unit adjusts the drying temperature to compensate for the lack of liquid reduction, ensuring both wrinkle prevention and color development are maintained
Solution Approach 2:
The system dynamically adjusts the drying temperature based on real-time environmental information. The control unit continuously monitors temperature and humidity, and modifies the drying parameters accordingly, making the drying process adaptive to changing environmental conditions while maintaining fixed ejection amounts
2Manufacturing precision
If the ejection amount of liquid is adjusted based on printing environment to maintain printing quality, then the printing quality is improved, but the color development deteriorates for users prioritizing color
Solution Approach 1:
Instead of adjusting the ejection amount to adapt to environmental conditions, the system inverts the approach by keeping the ejection amount fixed and adjusting the drying parameters instead. This reversal maintains color development consistency while still addressing environmental variations through drying 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 system effectively controls liquid ejection and drying to maintain printing quality across varying environmental conditions, reducing the risk of wrinkles and ensuring consistent color development without altering the ejection amount, thus enhancing the reliability of the printing process.
Implementation Method 1
a drying unit configured to dry the medium onto which the liquid is ejected by the ejecting unit
Implementation Method 2
a heating unit configured to heat the medium to a predetermined temperature
Data Source
AI summary
A liquid ejecting system includes an environmental information acquiring unit that acquires, as environmental information at least one of a temperature and a humidity, an ejecting unit that ejects a liquid onto a medium, a drying unit that dries the medium onto which the liquid is ejected by the ejecting unit, a control unit that controls the ejecting unit and the drying unit, and a storage unit that stores setting information. The control unit acquires drying information corresponding to medium type information and ejection amount information acquired as a liquid ejection condition and the environmental information acquired by the environmental information acquiring unit, based on the setting information stored in the storage unit, and performs drying control that controls the drying unit, based on the acquired drying information.