Liquid Discharge Apparatus Head Unit Overlap Configuration
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Solution Overview
Problem
Existing liquid discharge apparatuses, such as ink jet printers, have limited versatility due to the need for multiple head units with the same configuration to achieve varying print lengths, resulting in inefficiencies and reduced image quality from differences in head unit characteristics.
Innovation Solution
The apparatus includes a combination of first and second head units with distinct configurations, allowing for adjustable print widths by varying the number of each unit, which reduces image quality degradation by overlapping sections of head units to minimize temperature and operational differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple head units with the same configuration are combined to achieve varying print lengths, then the desired print width can be obtained, but the versatility of the head unit is reduced and image quality degrades due to differences in head unit characteristics
Solution Approach 1:
The head unit is divided into multiple sections (first section, second section, third section) with different widths, allowing the head unit to be configured in various combinations to achieve different print widths. This segmentation enables a single head unit design to serve multiple printing width requirements, improving versatility while maintaining consistent image quality through controlled overlapping sections.
2Length of moving object
If head units are arranged to achieve desired print widths, then print length flexibility is improved, but temperature and operational differences between head units cause image quality degradation
Solution Approach 1:
Adjacent head units are arranged to overlap in the second direction (width direction), merging their discharge sections to form a continuous printing surface. This overlapping ensures that the entire printing width is covered without gaps or discontinuities, maintaining uniform image quality across different print widths while allowing flexible combination of head units with different configurations.
Data Source
AI summary
The width by which the first, second heads overlap each other cross-sectionally along the first direction is greater than the width by which the fifth, sixth heads overlap each other cross-sectionally along the first direction.