Ink Supply System with Automatic Airflow Control
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Solution Overview
Problem
Conventional disposable inkjet printer cartridges result in resource waste and environmental pollution due to unused ink, while refillable cartridges face issues of spillage, inconvenient printing suspension, and high power consumption with pump-based refilling systems.
Innovation Solution
An uninterrupted ink supply system comprising a main cartridge, a connection device, and a replenishment cartridge that automatically controls airflow to maintain continuous ink flow without electrical power, allowing refilling without interrupting printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a disposable cartridge is used, then the printing function is provided, but resource waste and environmental pollution occur due to unused ink
Solution Approach 1:
The ink supply system is divided into two separate cartridges: a main cartridge that remains installed in the printer and a replenishment cartridge that is removed for refilling. This segmentation allows the main cartridge to retain its printing function while the replenishment cartridge can be completely emptied and refilled without waste, as all ink can be transferred to the replenishment cartridge for complete recycling.
Solution Approach 2:
The system enables complete recovery of ink by allowing the replenishment cartridge to be completely emptied into a recycling container, then completely refilled. This eliminates the waste associated with disposable cartridges where remaining ink is discarded, and recovers all ink for reuse, addressing both the printing function requirement and the waste reduction goal.
2Adaptability or versatility
If a manual refillable cartridge is used, then refilling is possible, but spillage occurs and printing must be suspended
Solution Approach 1:
By separating the ink supply into a main cartridge (installed in printer) and a replenishment cartridge (removed for refilling), the system allows refilling operations to be performed externally without interrupting the printing function of the main cartridge. The replenishment cartridge can be completely removed and refilled while the main cartridge continues printing.
Solution Approach 2:
The connection device acts as an intermediary between the main cartridge and replenishment cartridge, enabling automatic ink transfer when the replenishment cartridge is installed. This intermediary mechanism allows seamless ink supply transition without requiring manual intervention or printing suspension during the refilling process.
3Extent of automation
If a pump-based refillable cartridge is used, then automatic refilling is achieved, but cost, complexity, and power consumption increase
Solution Approach 1:
The connection device automatically detects when the replenishment cartridge is installed and initiates ink transfer without external control. The system uses the natural pressure differential and gravity to enable automatic ink flow from the replenishment cartridge to the main cartridge, eliminating the need for pumps, motors, or electrical power while achieving automatic refilling functionality.
Solution Approach 2:
The patent replaces the mechanical pump system with a passive connection device that uses natural physical principles (pressure differential, gravity, and capillary action) to achieve automatic ink transfer. This substitution eliminates complex mechanical components, reducing cost, complexity, and power consumption while maintaining automation.
4Extent of automation
If a pump-based refillable cartridge is used, then refilling is automated, but power consumption increases
Solution Approach 1:
The connection device performs automatic ink transfer using the natural pressure differential created when the replenishment cartridge is installed. The system leverages the existing pressure difference between the two cartridges and gravity to enable passive ink flow, completely eliminating the need for electrical power or active pumping mechanisms.
Solution Approach 2:
The patent replaces the power-consuming pump system with a passive connection device that uses natural physical principles (pressure differential, gravity, capillary action) to achieve automatic ink transfer. This substitution eliminates electrical components and power consumption while maintaining the automation of the refilling process.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system reduces waste and spillage, eliminates the need for power consumption during refilling, and ensures uninterrupted printing by automatically replenishing ink when levels drop, making it more convenient and efficient than traditional refillable or pump-based systems.
Implementation Method 1
The connection device includes a structure able to automatically control airflow without the electrical power. The automatic airflow control structure of the connection device can automatically stop flowing the ink from the replenishment cartridge into the main cartridge when the ink level in the main cartridge is above a specific threshold, and automatically start flowing the ink from the replenishment cartridge into the main cartridge again when the ink level in the main cartridge is below a specific threshold.
Data Source
AI summary
An uninterrupted ink supply system is provided, including a main cartridge connected to a printer, a connection device having an automatic airflow control structure and installed on said main cartridge, and a replenishment cartridge for connecting to the connection device. The replenishment cartridge is connected to the connection device, and is able to refill the ink into the main cartridge, and automatically stop refilling when the ink level reaching a specific height and start refilling again when ink level below a specific height. When the replenishment cartridge is removed for refilling when the ink is used up, the main cartridge still contains ink so that the printing will not be suspended.