Image Forming Apparatus Paper Error Detection and Estimation
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Solution Overview
Problem
Image forming apparatuses face challenges in accurately detecting and communicating paper errors, such as jamming, size issues, and conveyance deviations, which can lead to incomplete or faulty prints and user frustration.
Innovation Solution
The apparatus incorporates a sensor section to monitor paper state, a determination section to analyze error conditions, and an estimation section to identify occurrence factors, providing clear messages to users about error locations and types through a display panel, thereby preventing paper errors and enhancing user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sensors are deployed to detect various paper errors (jamming, size errors, conveyance deviations), then measurement precision is improved, but device complexity increases
Solution Approach 1:
The sensor section is designed to perform multiple detection functions using integrated sensors that can detect paper presence, position, size, and conveyance status simultaneously. This multi-functional approach improves measurement precision for various paper errors while avoiding the need for separate dedicated sensors for each error type, thereby controlling device complexity.
2Loss of information
If detailed error condition analysis is performed to identify specific occurrence factors, then information completeness is improved, but processing time increases
Solution Approach 1:
The determination section pre-establishes multiple error conditions and their corresponding occurrence factors before actual error detection. When a paper error occurs, the system quickly matches sensor readings against these pre-defined conditions to identify the specific occurrence factor, thereby providing complete error information without requiring extensive real-time processing.
Solution Approach 2:
The error detection process is segmented into distinct error conditions (jamming, size errors, conveyance deviations) with specific detection criteria for each. This segmentation allows the system to analyze detailed error conditions independently and efficiently, completing the analysis quickly by focusing on specific pre-defined parameters rather than performing exhaustive general analysis.
Data Source
AI summary
An image forming apparatus is an apparatus that forms an image on paper and provided with a sensor section, a determination section, and an estimation section. The sensor section outputs a signal indicating a state of the paper. The determination section determines whether or not each of a plurality of error conditions relating to a paper error is satisfied based on the signal output by the sensor section. The estimation section estimates an occurrence factor of the paper error based on a satisfaction pattern of the plurality of error conditions.