Abnormality Detection in Image Reading Apparatus Using Spectral Reflectance
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Solution Overview
Problem
Existing techniques for evaluating the print quality of image forming apparatuses are inadequate as they fail to correctly assess print quality when the state of the image reading apparatus is inappropriate.
Innovation Solution
An information processing apparatus that detects abnormalities in an image reading apparatus by comparing first and second spectral reflectances, with the first spectral reflectance generated from data read from a reference white plate and the second spectral reflectance generated prior to the first, and identifies the cause of the abnormality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spectral reflectance data is collected and stored for abnormality detection, then abnormality detection capability is improved, but device complexity and data management burden increase
Solution Approach 1:
The system performs preliminary actions by collecting and storing spectral reflectance data during normal operation before abnormalities occur. Multiple pieces of spectral reflectance data are accumulated over time to establish a baseline for comparison, enabling proactive abnormality detection without requiring complex real-time analysis infrastructure
Solution Approach 2:
The system implements feedback mechanisms by continuously comparing newly acquired spectral reflectance data against historically stored data. When deviations exceed predetermined thresholds, the system generates abnormality notifications and can automatically issue maintenance instructions, creating a closed-loop feedback system that improves reliability without proportionally increasing complexity
2Measurement precision
If frequent spectral reflectance measurements are performed, then measurement precision and abnormality detection accuracy are improved, but loss of time and measurement overhead increase
Solution Approach 1:
The system applies partial action by performing spectral reflectance measurements at strategically selected intervals rather than continuously. Measurements are triggered by specific conditions such as printer job completion or predetermined time intervals, achieving sufficient detection accuracy while minimizing time loss through selective rather than exhaustive measurement
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
Enables accurate detection and identification of abnormalities in the image reading apparatus, thereby ensuring proper evaluation of print quality and facilitating appropriate corrective actions.
Implementation Method 1
a first spectral reflectance generated based on data read from a reference white plate installed in the image reading apparatus, a second spectral reflectance generated before generation of the first spectral reflectance
Data Source
AI summary
An information processing apparatus includes processing circuitry. The processing circuitry detects an abnormality in an image reading apparatus from a first spectral reflectance and a second spectral reflectance, the first spectral reflectance being generated based on data read from a reference white plate installed in the image reading apparatus, the second spectral reflectance being generated before generation of the first spectral reflectance, and identifies a cause of an abnormality in the image reading apparatus in a case where the processing circuitry detects the abnormality.