Ink Supply Device Detection System for Cartridge Position Verification
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Solution Overview
Problem
Existing ink supply devices face challenges in accurately determining the type and position of ink cartridges due to variations in positional relationships between detection target portions and detecting devices, leading to incorrect type identification and potential chemical reactions or loss of mount status during power cycles.
Innovation Solution
The implementation of a controller and detector system with specific detection target portions and corresponding detectors in the ink supply device, which includes a first, second, and third detection target portion, and their respective detectors, to ensure accurate type determination and mount position verification, even after power cycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a clearance is provided between the ink cartridge and the cartridge mounting portion to facilitate insertion, then the ease of operation is improved, but the measurement precision deteriorates due to position variations
Solution Approach 1:
The detection system is segmented into multiple independent detectors (first detector, second detector, third detector) positioned at different locations. Each detector independently monitors a specific detection target portion, allowing the system to accommodate position variations while maintaining accurate detection of the ink cartridge type and mount position.
Solution Approach 2:
The patent adds a temporal dimension to the detection process by monitoring the detection target portions during the insertion movement. The controller determines mount position based on the sequence and timing of detector activations, transforming a spatial detection problem into a temporal sequence problem that is insensitive to clearance variations.
2Adaptability or versatility
If detection target portions are spaced a relatively great distance apart to enable type determination, then the adaptability is improved, but the reliability deteriorates due to increased position variation effects
Solution Approach 1:
The ink cartridge is segmented into multiple distinct detection target portions (first, second, and third detection target portions) positioned at different locations along the insertion direction. This segmentation enables the system to identify different ink cartridge types based on which portions are detected, while the multiple detectors provide redundant verification to maintain reliability despite position variations.
Solution Approach 2:
The system uses feedback from multiple detectors to continuously verify the detected ink cartridge type and mount position. The controller processes signals from all detectors and adjusts its determination based on the combined information, providing a feedback mechanism that compensates for position variations and maintains high detection reliability.
3Device complexity
If only two detection target portions are used for type determination, then the device complexity is reduced, but the reliability deteriorates due to inability to detect mount position after power cycles
Solution Approach 1:
The detection system is segmented into three functional components: two detection target portions for type determination and a third detection target portion specifically for mount position verification. This segmentation allows the system to perform both functions reliably without significantly increasing overall complexity, as the third portion uses the same detector infrastructure.
Solution Approach 2:
The detection system is designed with multi-functionality, where the same detectors and control logic serve multiple purposes: determining ink cartridge type, verifying mount position, and detecting insertion events after power cycles. This universal design maintains device complexity at an acceptable level while achieving reliable multi-purpose detection.
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 reduces the likelihood of using cartridges with broken detection target portions and ensures correct ink type identification and mount position determination, preventing chemical reactions and maintaining accurate status during power cycles.
Implementation Method 1
a detector configured to detect the detection target portion and output detection information when detecting the detection target portion
Data Source
AI summary
An ink supply device includes a controller, a cartridge mounting portion, and an ink cartridge. The cartridge mounting portion includes first, second, and third detectors configured to detect first, second, and third detection target portions of the ink cartridge and to output first, second, and third detection information, respectively. The controller is configured to execute a first process if both the first detection information and the second detection information are output and execute a second process if at least one of the first detection information and the second detection information is not output when the third detection information is output during insertion of the ink cartridge into the cartridge mounting portion. It is determined that the ink cartridge has reached a predetermined mount position in the first process, and a type of the ink cartridge is determined in the second process.