Movable Side Guide Sound Detection for Paper Jam Analysis
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Solution Overview
Problem
Existing paper conveying apparatuses face challenges in effectively detecting jams due to varying sound generation positions, which can lead to incorrect jam detection and paper damage.
Innovation Solution
A paper conveying apparatus with movable side guides and integrated microphones that adjust to detect sounds at optimal positions relative to the paper, distinguishing between jam and wrinkle sounds to prevent false alarms and ensure precise jam detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If sound detection is used to detect jams, then detection speed is improved, but detection precision deteriorates due to varying sound generation positions
Solution Approach 1:
The side guide is made movable in the width direction of the paper, and the sound detector is integrated with the side guide so that it moves together. This allows the sound detector to dynamically adjust its position to the optimal detection location for each paper size, resolving the contradiction between fast detection and precise detection by enabling the detection position to adapt to different conditions.
2Device complexity
If fixed position sound detection is used, then device complexity is reduced, but adaptability deteriorates for different paper sizes
Solution Approach 1:
The sound detector is merged with the side guide structure, forming an integrated assembly. This combination allows the sound detector to leverage the side guide's movability to adapt to different paper sizes without requiring separate adjustment mechanisms, thus maintaining simple device complexity while improving adaptability.
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 apparatus effectively detects jams caused by staples or other obstructions while minimizing false positives from wrinkles, preventing paper damage and ensuring reliable operation across various paper sizes.
Implementation Method 1
a sound detector moves in accordance with movement of the side guide, for generating a sound signal corresponding to a sound generated by the paper during conveyance of the paper
Data Source
AI summary
There are provided a paper conveying apparatus which can effectively detect a sound which is generated when a jam occurs for various types of jams. The paper conveying apparatus includes a side guide, arranged to be movable in a direction which is perpendicular to a conveyance direction of a paper placed on a paper tray, for restricting a width direction of the paper, a sound signal generator, provided at the side guide so that a sound detector moves in accordance with movement of the side guide, for generating a sound signal corresponding to a sound generated by the paper during conveyance of the paper, and a sound jam detector for determining whether a jam has occurred based on the sound signal.