Fluid Interconnector for Bulk Ink Supply Alignment
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Solution Overview
Problem
Conventional inkjet printers face issues with non-customizable external fluid delivery systems, including ink pressure fluctuations, complex fluid seals, alignment difficulties, increased printer size, blockages, air accumulation, leakage, high costs, and complex manufacturing processes, particularly due to the integration of ink tanks with printheads, which affects printing accuracy and requires frequent replacements.
Innovation Solution
A print cartridge with a fluid interconnecting mating feature that allows for easy connection to an external fluid delivery system, featuring a guided mating component for reduced manufacturing complexity and increased customization, with a secure and interchangeable design for different fluid viscosities and flow rates, enabling easy diagnosis of blockages and leakages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If ink tanks are integrated with printheads, then printing accuracy is maintained, but the mass and inertia increase requiring frequent replacements
Solution Approach 1:
The ink delivery system is divided into separate components: a stationary external ink tank and a mobile printhead assembly. The ink tank remains fixed in the printer body while the printhead moves independently during printing, separating the weight burden from the moving components and maintaining printing accuracy.
Solution Approach 2:
The ink tank is extracted from the printhead assembly and placed in a stationary position within the printer body. This removes the heavy ink reservoir from the moving printhead, reducing mass and inertia while still providing continuous ink supply through fluid interconnection.
2Adaptability or versatility
If external fluid delivery systems are used, then customization and refilling are improved, but fluid seal reliability and alignment precision deteriorate
Solution Approach 1:
A fluid interconnector acts as an intermediary component between the stationary ink tank and the mobile printhead. This interconnector provides a reliable fluid seal and standardized connection interface, ensuring dependable ink delivery while allowing customization of the external tank system.
Solution Approach 2:
The fluid interconnector is designed as a universal interface that can accommodate different ink tank configurations and printhead models. This standardized connection maintains fluid seal reliability across various customization scenarios while enabling easy refilling and replacement.
3Duration of action of stationary object
If external fluid supply is connected to print cartridge, then refilling without disruption is enabled, but device complexity and manufacturing cost increase
Solution Approach 1:
The external ink tank system is designed to be user-refillable and self-servicing. Users can refill the stationary ink tank without requiring technical expertise or disrupting printhead operations, simplifying maintenance while enabling continuous printing operations.
Solution Approach 2:
The fluid interconnector is pre-installed on the printhead assembly during manufacturing, establishing the fluid connection pathway in advance. This preliminary action allows the external tank to be connected later without complex assembly procedures, reducing overall system complexity.
4Ease of operation
If guided mating component is added, then alignment ease is improved, but manufacturing complexity increases
Solution Approach 1:
The guided mating component incorporates asymmetric alignment features such as keyed interfaces or tapered guides that naturally orient the fluid interconnector during assembly. This asymmetric design provides self-aligning characteristics that simplify the assembly process while adding minimal manufacturing complexity.
Data Source
AI summary
A fluid interconnect system including a mating component having an inlet port and a liquid outlet, the inlet port configured to support an interconnector and the liquid outlet configured to engage with a print cartridge so that liquid flows from a liquid source, through the interconnector and the inlet port, and out of the liquid outlet into the print cartridge.