Ink Supply Device Optical Cartridge Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing ink supply devices struggle to accurately determine the characteristics of ink cartridges, such as ink type and initial amount, during insertion and mounting, leading to potential misidentification and inefficient ink usage.
Innovation Solution
The implementation of a system with first and second optical detectors and corresponding output units to emit and receive light, determining the characteristics of the ink cartridge based on light intensity, allowing for precise identification of ink type and initial amount through specific optical paths and detection targets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single optical detector is used to determine ink cartridge characteristics, then the device complexity is reduced, but the measurement precision and reliability of ink type and initial amount identification deteriorate
Solution Approach 1:
The optical detection system is segmented into two distinct optical detectors, each responsible for detecting specific characteristics of the ink cartridge. The first optical detector determines the initial amount of ink, while the second optical detector determines the ink type. This segmentation allows for specialized detection paths that improve measurement precision for each specific characteristic without requiring a single complex detector to handle all measurements.
Solution Approach 2:
The patent introduces detection target portions on the ink cartridge that serve as intermediaries between the optical detectors and the ink characteristics. These detection target portions are positioned to block or transmit light based on the ink's properties (amount and type), enabling the optical detectors to indirectly measure ink characteristics through optical interactions. This intermediary approach enhances measurement precision by creating distinct optical signatures for different ink conditions.
2Reliability
If multiple optical detectors are positioned to detect different characteristics, then the measurement precision of ink type and initial amount is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple detection functions into a unified detection system where two optical detectors work together within the same cartridge mounting portion. The first and second optical detectors are integrated into the mounting structure, sharing common components such as the cartridge insertion mechanism and control circuitry. This merging approach improves reliability through multi-parameter detection while controlling overall device complexity by using a shared structural framework.
Solution Approach 2:
The optical detection system is designed with multi-functionality, where the detection target portions serve dual purposes: they block light for the first optical detector to indicate ink amount, and simultaneously block light for the second optical detector to indicate ink type. This universal design allows a single structural element to provide multiple detection signals, improving identification reliability without proportionally increasing device complexity.
3Measurement precision
If detection target portions are positioned to be detected at different timings during insertion, then the measurement precision of different characteristics is improved, but the difficulty of detecting and measuring increases
Solution Approach 1:
The detection target portions are pre-positioned on the ink cartridge at specific locations that correspond to the optical paths of the two optical detectors. Before the ink cartridge is inserted into the mounting portion, the detection target portions are already arranged to be detected at different timings: the first detection target portion is detected during initial insertion, and the second detection target portion is detected after complete insertion. This preliminary positioning simplifies the detection process by eliminating the need for dynamic adjustment during measurement.
Solution Approach 2:
The patent replaces complex mechanical positioning mechanisms with an optical detection system that automatically determines characteristics based on light interaction. Instead of using mechanical sensors or contact-based measurement devices that would require precise physical alignment, the system uses optical detectors that can detect the presence and properties of detection target portions through non-contact optical paths. This substitution reduces the difficulty of detection by eliminating complex mechanical alignment requirements while maintaining high measurement precision.
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
This solution enables accurate determination of ink cartridge characteristics, ensuring correct identification and efficient ink usage, improving the reliability and functionality of the ink supply system.
Implementation Method 1
a first optical detector comprising a first light emitter configured to emit light and a first light receiver configured to receive light emitted by the first light emitter... whether or not an intensity of light received by the first light receiver is greater than or equal to a predetermined value
Implementation Method 2
a second optical detector comprising a second light emitter configured to emit light and a second light receiver configured to receive light emitted by the second light emitter... whether or not an intensity of light received by the second light receiver is greater than or equal to a predetermined value
Data Source
AI summary
An ink supply device includes a cartridge mounting portion to which an ink cartridge is configured to be mounted by being inserted thereinto in an insertion direction, a first determiner configured to determine a first characteristic of the ink cartridge, and a second determiner configured to determine a second characteristic of the ink cartridge.