Liquid Ejecting Apparatus Non-Overlapping Unit Housing
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Solution Overview
Problem
In liquid ejecting apparatuses, replacing one unit often requires removing another unit, which is time-consuming and labor-intensive due to overlapping configurations, hindering efficient maintenance and repair.
Innovation Solution
The apparatus features a housing with an exposure opening that allows the supply unit, maintenance unit, and selector unit to be positioned non-overlappingly, enabling individual replacement without interfering with each other, and includes elastic coupling flow paths for easy access and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If units are arranged in an overlapping configuration within the housing, then the device complexity is reduced and space is utilized efficiently, but the ease of operation deteriorates because one unit must be removed to access another unit
Solution Approach 1:
The housing interior space is segmented into multiple non-overlapping regions, with each region dedicated to accommodating a specific unit (supply unit, maintenance unit, selector unit). This spatial segmentation allows each unit to be independently accessed through the exposure opening without interfering with other units, resolving the contradiction between compact structure and ease of operation.
2Volume of stationary object
If units are positioned to overlap each other, then the volume of stationary object is reduced and space is saved, but the ease of repair deteriorates because multiple units must be removed to replace a single unit
Solution Approach 1:
Instead of arranging units in a vertical overlapping stack (one dimension), the units are positioned side-by-side in a horizontal arrangement (another dimension). This dimensional change maintains compact housing volume while enabling independent access to each unit through the exposure opening, improving ease of repair without sacrificing space efficiency.
Data Source
AI summary
There is provided a liquid ejecting apparatus including: a head that ejects a liquid; a supply unit that supplies a liquid to the head; a maintenance unit for maintaining the head; a selector unit that selects a unit to be opened to an atmosphere from the supply unit and the maintenance unit; and a housing that accommodates the supply unit, the maintenance unit, and the selector unit, in which the housing has an opening surface to which an exposure opening is open and a cover that closes the exposure opening, the exposure opening exposes the supply unit, the maintenance unit, and the selector unit, and when the exposure opening is viewed from a position facing the opening surface, the supply unit, the maintenance unit, and the selector unit are positioned not to overlap each other.