Liquid Discharge Head Positioning for Stable Maintenance Alignment
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Solution Overview
Problem
The positioning of the liquid discharge section and the maintenance section in existing liquid discharge apparatuses is unstable, leading to inaccuracies in the alignment and potential leakage of liquid from the nozzle.
Innovation Solution
A liquid discharge apparatus with a maintenance section that includes a first positioning section and a second positioning section, where the first positioning section is positioned farther than the second positioning section in the movement direction, ensuring it contacts the liquid discharge section before the second positioning section, thereby stabilizing the alignment and reducing leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the positioning section is designed with a single contact point, then the structure is simple, but the positioning stability is insufficient
Solution Approach 1:
The positioning section is divided into multiple independent contact portions (first contact portion and second contact portion) positioned at different locations. Each contact portion independently contacts the liquid discharge section, distributing the positioning function across multiple points to enhance stability without requiring a complex single integrated structure.
Solution Approach 2:
The contact portions are arranged in the movement direction (longitudinal dimension) rather than only in the horizontal plane. This spatial arrangement along the movement path creates a multi-dimensional positioning configuration that improves stability by constraining movement in multiple directions simultaneously.
2Manufacturing precision
If the contact portions are arranged in the movement direction, then the positioning accuracy is improved, but the device complexity increases
Solution Approach 1:
The positioning section is segmented into multiple contact portions positioned at different locations along the movement direction. This segmentation allows each contact portion to independently ensure accurate positioning at its specific location, achieving high positioning accuracy through distributed contact points rather than a single complex positioning mechanism.
Data Source
AI summary
A movement section is configured to move one of the liquid discharge section and the maintenance section toward another of the liquid discharge section and the maintenance section in a first direction. A maintenance section includes first and second positioning sections that perform positioning of the maintenance section and the liquid discharge section by coming into contact with the liquid discharge section. The first positioning section is provided at a position farther than the second positioning section in a second direction intersecting with a first direction with, as a reference, an action point at which the movement section acts on the one of the liquid discharge section and the maintenance section. The first positioning section comes into contact with the liquid discharge section before the second positioning section when the one of the liquid discharge section and the maintenance section moves toward the other.