Liquid Discharging Apparatus Support Body Nozzle Alignment
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Solution Overview
Problem
Existing liquid discharging apparatuses face challenges in achieving high resolution due to difficulties in accurately positioning head units with intersecting nozzle arrays, leading to inefficiencies in ink discharge and image quality.
Innovation Solution
The apparatus includes a support body with specific fixing portions for head units, allowing for precise alignment of nozzles by shifting the head units by a calculated distance, ensuring accurate positioning and uniform dot intervals for improved resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If head units are arranged with shifted positions to achieve high resolution, then resolution is improved, but positioning accuracy becomes difficult to achieve
Solution Approach 1:
The support body acts as an intermediary component with pre-defined fixing portions that mediate between the head units and the liquid discharging apparatus frame. The fixing portions include positioning protrusions and positioning recesses that serve as intermediate positioning elements, enabling accurate relative positioning of head units without requiring direct measurement and adjustment between head unit arrays.
Solution Approach 2:
The positioning structure is pre-configured on the support body before the head units are installed. The fixing portions with specific dimensional relationships (non-integer multiples of nozzle pitch) are manufactured in advance on the support body, allowing head units to be positioned accurately through simple attachment rather than requiring complex measurement and adjustment procedures during assembly.
2Manufacturing precision
If multiple head units are arranged with precise shifting for high resolution, then image quality is improved, but device complexity increases
Solution Approach 1:
Multiple head units are merged onto a single support body that integrates the positioning functionality. The support body combines multiple fixing portions with pre-defined dimensional relationships, merging the positioning functions for multiple head units into a single structural component rather than requiring separate positioning mechanisms for each head unit.
Solution Approach 2:
The support body serves multiple functions simultaneously: it supports multiple head units, provides positioning reference for all head units, maintains precise relative positions through its fixing portions, and enables easy assembly/disassembly. This multi-functional design reduces overall device complexity compared to having separate positioning mechanisms for each head unit.
Data Source
AI summary
The plurality of first nozzles and the plurality of second nozzles are arranged such that a distance between nozzles adjacent to each other in a first direction is a first distance, the support body is provided with a first fixing portion for fixing the first head unit onto the support body and a second fixing portion for fixing the second head unit onto the support body, and a distance between the first fixing portion and the second fixing portion in the first direction is a second distance that is different from an integral multiple of the first distance.