Ink Cartridge Memory Adjusts Ink Usage
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Solution Overview
Problem
Ink cartridges exhibit variations in ink usage due to differences in physical and chemical properties of inks, such as viscosity, leading to inconsistent performance and ink levels, which existing technologies fail to address effectively.
Innovation Solution
An ink cartridge with a memory component that stores an ink usage adjustment value, determined through testing, allows for tuning of ink usage properties to meet target specifications, enabling the printing system to adjust ink ejection based on specific ink characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If ink cartridges are manufactured with standard processes, then manufacturing cost and simplicity are maintained, but ink usage varies due to fabrication differences and ink properties
Solution Approach 1:
The patent applies preliminary action by pre-determining ink usage values for each ink cartridge during manufacturing. These values are stored in memory components before the cartridge reaches the user, allowing the printing system to later retrieve and apply the appropriate adjustment factors without real-time measurement or complex calibration procedures.
Solution Approach 2:
The patent implements parameter changes by modifying the ink ejection parameters (number of droplets, droplet volume) based on stored ink usage values. The system adjusts printing parameters dynamically according to the specific cartridge's characteristics, compensating for manufacturing variations and ink property differences without changing the physical cartridge structure.
2Reliability
If ink usage is adjusted for each cartridge, then ink usage consistency is improved, but system complexity and data management requirements increase
Solution Approach 1:
The patent implements feedback by using pre-measured ink usage values obtained during cartridge manufacturing. These values serve as feedback information that is stored in the cartridge's memory and retrieved by the printing system to automatically adjust ink ejection, creating a closed-loop system that compensates for cartridge-specific variations.
Solution Approach 2:
The cartridge essentially serves itself by containing its own characterization data (ink usage values) within its memory component. The printing system simply needs to read this data and apply the appropriate adjustments, eliminating the need for external calibration equipment or complex system-wide reconfiguration.
3Duration of action of moving object
If the number of ink droplets is adjusted to meet target ink usage, then ink cartridge life is extended, but printed image quality may be affected
Solution Approach 1:
The patent applies parameter changes by adjusting the number of ink droplets ejected based on stored ink usage values. The system modifies ejection parameters (droplet count, frequency) to achieve target ink usage while attempting to maintain image quality through controlled parameter adjustment rather than crude reduction.
Solution Approach 2:
The patent uses partial action by ejecting slightly more or fewer droplets than the standard amount based on the specific cartridge's characteristics. This partial adjustment approach allows fine-tuning of ink usage to extend cartridge life while minimizing the impact on image quality that would result from more aggressive reduction.
Data Source
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AI summary
A method for tuning ink usage includes storing an ink usage adjustment value (304) in a memory of an ink cartridge (200); and with a printing system (208) utilizing the ink cartridge (200), adjusting an ink usage of the ink cartridge (200) based on the ink usage adjustment value (304). An ink cartridge (200) includes a memory for storing an ink usage adjustment value (304), the ink usage adjustment value (304) based on ink usage properties of the cartridge (200). A printing system (208) utilizing the ink cartridge (200) adjusts an ink usage of the ink cartridge (200) based on the ink usage adjustment value (304).