Inkjet Head Fixed Plate Reservoir Support Structure
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Solution Overview
Problem
The inkjet recording apparatus faces challenges in securely supporting the inkjet head due to the low strength of the channel unit and susceptibility to external forces, which can cause deformation and damage, especially when the inkjet head is fixed to a frame with a reservoir unit that protrudes, increasing the distance between the frame and the channel unit.
Innovation Solution
The apparatus incorporates a laminated structure for the reservoir unit with a fixed plate that has both end portions outside the channel unit, where the first surface is closer to the channel unit than the second surface, allowing for secure fixation to the frame and reducing the distance between the frame and channel unit, thus protecting the low-strength channel unit from external forces and facilitating easy adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the reservoir unit is fixed to the frame with the channel unit protruding, then the inkjet head can be securely supported, but the distance between the frame and channel unit increases making it susceptible to external force
Solution Approach 1:
Instead of fixing the reservoir unit to the frame with the channel unit protruding outward, the patent inverts the arrangement by fixing the channel unit directly to the frame with its ink ejection surface facing the frame. This reversal eliminates the protruding portion that was susceptible to external force while maintaining secure support through the fixed plate structure.
Solution Approach 2:
The patent introduces a fixed plate as an intermediary component between the channel unit and the frame. This fixed plate serves as a mediator that securely connects the low-strength channel unit to the rigid frame, providing stable support while minimizing the channel unit's exposure to external forces.
2Adaptability or versatility
If the channel unit is made with many minute channels, then ink ejection functionality is achieved, but the channel unit strength decreases
Solution Approach 1:
The fixed plate acts as a strengthening intermediary that compensates for the channel unit's structural weakness. By providing rigid external support from the frame through the fixed plate, the system enables the channel unit to maintain its complex minute channel structure for ink ejection without compromising overall strength.
Solution Approach 2:
The patent segments the inkjet head into distinct functional components: the frame providing structural strength, the fixed plate providing connection and support, and the channel unit providing ink ejection functionality. This segmentation allows each component to be optimized for its specific function while working together as an integrated system.
3Object-affected harmful factors
If the distance between frame and channel unit is shortened, then external force protection is improved, but secure support becomes difficult to achieve
Solution Approach 1:
The fixed plate serves as an intermediary that enables secure support at minimal distance. By positioning the fixed plate's first surface close to the frame while extending its end portions to the frame for fixation, it provides stable connection without requiring a large distance, thus protecting the channel unit from external forces.
Solution Approach 2:
The fixed plate extends in multiple dimensions: its end portions extend to the frame for secure fixation while its first surface is positioned close to the frame. This multi-dimensional arrangement achieves both secure support and minimal exposure distance simultaneously.
Data Source
AI summary
An inkjet recording apparatus includes an inkjet head and a frame supporting the inkjet head. The inkjet head includes a channel unit is fixed to the reservoir unit and a reservoir unit. The reservoir unit includes a laminated structure in which plural plate members are laminated. The plate members include a fixed plate. In a plan view, both end portions of the fixed plate are located outside the channel unit. The fixed plate includes first and second surfaces. The first surface is closer to the channel unit than the second surface. The both end portions of the fixed plate are fixed to the frame so that the both end portions of the fixed plate face the frame and the first surface is closer to the frame than the second surface.