Liquid Ejection Apparatus Dynamic Stain Reduction Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional stain reduction controls in liquid ejection apparatuses face challenges in balancing operation time and stain reduction effectiveness, as long waiting times prolong operations while short waiting times may inadequately reduce stains.
Innovation Solution
A liquid ejection apparatus that includes a medium container, a liquid ejection head, a mover, and a controller. The controller adjusts the amount of liquid ejected, the time interval between ejection operations, and the moving speed of the medium to optimize stain reduction based on medium information related to curling and usage conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If operation waiting time is extended to reduce stains, then stain reduction effect is improved, but operation time becomes too long
Solution Approach 1:
The patent applies dynamics by making the waiting time between ejection operations variable rather than fixed. The controller dynamically adjusts the waiting time based on medium information (curling characteristics and usage conditions) to optimize the balance between stain reduction and operation efficiency. This resolves the contradiction by adapting the waiting period to specific operational contexts rather than applying a uniform time extension.
Solution Approach 2:
The patent changes the parameter of waiting time based on medium characteristics and usage conditions. By adjusting this temporal parameter according to specific operational contexts, the system achieves effective stain reduction without unnecessarily prolonging operation time, thus resolving the contradiction between stain reduction effect and operation time.
2Productivity
If operation waiting time is shortened to maintain productivity, then operation time is reduced, but stain reduction effect cannot be secured
Solution Approach 1:
The system dynamically adjusts waiting time based on medium information, allowing short waiting times when not needed (maintaining productivity) while extending waiting time when stain reduction is critical. This contextual adaptation resolves the contradiction between productivity and stain reduction effect.
Solution Approach 2:
The waiting time parameter is adjusted based on medium characteristics and usage conditions, enabling the system to maintain short waiting times for high productivity when stain risk is low, while extending waiting time when stain reduction is necessary, thus resolving the contradiction.
3Ease of manufacture
If fixed waiting time control is applied to reduce stains, then implementation is simple, but cannot adapt to different medium characteristics
Solution Approach 1:
The patent implements a dynamic control system that adapts waiting time based on medium information (curling characteristics and usage conditions). This dynamic adaptation maintains relative implementation simplicity while significantly improving versatility across different medium types and conditions, resolving the contradiction between simplicity and adaptability.
Solution Approach 2:
The system changes the waiting time parameter based on medium characteristics and usage conditions, enabling adaptation to different media while maintaining a relatively simple control implementation through automated parameter adjustment, thus resolving the contradiction between implementation simplicity and adaptability.
Data Source
AI summary
A liquid ejection apparatus includes a medium container, a liquid ejection head, a mover, and a controller. The mover is configured to execute, among a first moving operation of moving a sheet-like medium and a second moving operation of moving the liquid ejection head, at least the first moving operation. The controller causes the liquid ejection head and the mover to alternately or simultaneously perform execution of the first moving operation and execution of ejection and second moving operations, and adjusts at least one selected from the group of an amount of liquid to be ejected, a time interval between the ejection operations when alternately performing execution of the first moving operation and execution of the ejection and second moving operations, and a moving speed of the medium when simultaneously executing the ejection operation and the first moving operation, according to medium information relating to curling of the medium.