Ink Cartridge Optical Detection for Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image recording apparatuses, such as ink-jet printers, face issues with damaged ink cartridges being used, leading to ink leakage and recording head breakdowns due to undetectable internal damage in the ink supply portion, which can occur from external impacts without visible signs of damage.
Innovation Solution
Incorporating a controller with optical detectors that emit and receive light, allowing ink consumption only when the ink cartridge has a projecting portion that can protect the ink supply portion from external impacts, ensuring the cartridge is securely mounted and less likely to be damaged, thereby reducing the risk of ink leakage and recording head issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ink cartridge is designed with a projecting portion to protect the ink supply portion from external impacts, then the reliability of the ink supply portion is improved, but the device complexity increases due to the additional structural component
Solution Approach 1:
The projecting portion is designed in advance to protect the ink supply portion before any damage can occur. This preventive structural feature is built into the ink cartridge design, allowing the ink supply portion to be shielded from external impacts during handling and installation, thereby improving reliability without requiring complex active protection mechanisms
Solution Approach 2:
The ink cartridge is divided into distinct functional segments: the ink supply portion, the projecting portion, and the mounting portion. This segmentation allows the projecting portion to serve as a dedicated protective element that can be independently designed and positioned to shield the critical ink supply portion from damage
2Device complexity
If the ink cartridge lacks a projecting portion, then the device complexity is reduced, but the ink supply portion becomes susceptible to external impacts and internal damage
Solution Approach 1:
The projecting portion is designed in advance to protect the ink supply portion before any damage can occur. This preventive structural feature is built into the ink cartridge design, allowing the ink supply portion to be shielded from external impacts during handling and installation, thereby improving reliability without requiring complex active protection mechanisms
Solution Approach 2:
The projecting portion acts as a cushioning element that absorbs or deflects external impacts before they can reach the ink supply portion. This passive protection mechanism is always in place, providing continuous shielding without requiring activation, thus maintaining simplicity while improving reliability
3Ease of operation
If the controller allows ink consumption without detecting the projecting portion, then the ease of operation is improved, but the risk of using damaged ink cartridges increases leading to ink leakage and recording head breakdown
Solution Approach 1:
The controller performs a preliminary check by detecting the presence of the projecting portion before allowing ink consumption to begin. This advance verification ensures that only properly configured ink cartridges are activated, preventing potential damage to the recording head while maintaining a simple user experience
Solution Approach 2:
The controller provides feedback by detecting whether the projecting portion is present on the mounted ink cartridge. Based on this detection, the controller either permits or prevents ink consumption, creating a simple binary control mechanism that protects the system without complicating user operation
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 solution effectively reduces the chances of using a damaged ink cartridge by ensuring the ink supply portion is protected, minimizing ink leakage and recording head breakdowns, as the controller only allows ink consumption when the cartridge's projecting portion is present and functional.
Implementation Method 1
a first light-emitting portion configured to emit light and a first light-receiving portion configured to receive the light emitted from the first light-emitting portion
Implementation Method 2
The first light-receiving portion is configured to output a signal depending on an intensity of light received by the first light-receiving portion
Data Source
Figure 1
Figure 2A~2B
Figure 3A~3B
AI summary
An image recording apparatus includes a cartridge mounting portion including an optical detector comprising a light-emitting portion configured to emit light and a light-receiving portion configured to receive the light emitted from the light-emitting portion. The light-receiving portion is configured to output a signal depending on an intensity of light received by the light-receiving portion. The image recording apparatus also includes an ink cartridge including a projecting portion configured to act on the light emitted from the light-emitting portion, causing the intensity of light received by the light-receiving portion to change, during an insertion of the ink cartridge into the cartridge mounting portion. The image recording apparatus further includes a controller configured to allow ink to be consumed in the image recording apparatus, based on a change of the signal output from the light-receiving portion.