Page-Wide Liquid Ejection Head Connector Placement
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Solution Overview
Problem
Existing liquid ejection heads require separate and large ink leakage prevention components due to spaced supply and recovery ports, leading to increased size of the liquid ejection head and main body.
Innovation Solution
A page-wide liquid ejection head with supply and recovery connectors placed at one end, allowing for easier ink leakage prevention and reduced size by clustering these connectors, facilitating efficient ink circulation and leakage detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the supply port and outlet port are placed spaced away from each other at opposite ends, then the liquid ejection head can be configured to circulate ink through the head, but separate ink leakage prevention components are required which increases the size of the liquid ejection head and main body
Solution Approach 1:
The supply connector and recovery connector are positioned adjacent to each other at one end of the liquid ejection head, allowing a single ink leakage prevention component to cover both connectors simultaneously. This merging of connector positions eliminates the need for separate prevention components, thereby reducing the overall size of the liquid ejection head while maintaining reliable ink circulation through both connectors.
2Reliability
If separate ink leakage prevention components are provided for supply port and outlet port, then ink leakage can be prevented, but the liquid ejection head and main body grow in size
Solution Approach 1:
By positioning the supply connector and recovery connector adjacent to each other at one end of the liquid ejection head, a single ink leakage prevention component can effectively cover both connectors. This eliminates the need for separate prevention components that would increase the size of the main body, while still providing reliable ink leakage prevention for both connectors through the unified prevention component.
3Reliability
If a relatively large prevention component covering both supply port and outlet port is provided, then ink leakage can be prevented, but the liquid ejection head and main body are likely to grow in size
Solution Approach 1:
The supply connector and recovery connector are positioned adjacent to each other at one end of the liquid ejection head, allowing a single compact ink leakage prevention component to cover both connectors effectively. This adjacent positioning enables the use of a smaller prevention component compared to spaced positioning, thereby reducing the volume of the main body while maintaining effective ink leakage prevention.
Data Source
AI summary
A page-wide liquid ejection head detachable from a main body of a liquid ejection apparatus includes a supply connector connected to the main body and adapted to allow passage of a liquid supplied to the liquid ejection head; and a recovery connector connected to the main body and adapted to allow passage of the liquid recovered from the liquid ejection head, wherein the supply connector and the recovery connector are placed at one end in a longitudinal direction of the liquid ejection head.