Erasing Apparatus Jam Prevention via Conveyance Guide Sorting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing recording medium erasing apparatuses face jams when multiple bound recording media are conveyed, as existing double-feed detection sensors sometimes fail to detect double feeds, leading to apparatus failures.
Innovation Solution
An erasing apparatus with a recording medium sorting apparatus that includes a first and second conveyance guide, a displacing device, and jam sensors to detect and prevent jams by opening the conveying path when a jam is detected, allowing the jammed medium to be collected and sorted efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a double-feed detection sensor is used to detect bound recording media, then detection capability is improved, but detection reliability deteriorates because double feed cannot be detected in some cases
Solution Approach 1:
The detection system is segmented into multiple independent sensors (first detection sensor and second detection sensor) positioned at different locations. Each sensor detects the presence of recording media independently, and the control unit综合分析 their signals to determine double feed, improving overall detection reliability
Solution Approach 2:
A control unit acts as an intermediary that receives detection signals from multiple sensors, processes the information, and determines whether double feed has occurred. This intermediary processing layer enhances the reliability of detection by cross-validating signals from different sensors
2Productivity
If multiple bound recording media are conveyed through the erasing apparatus, then processing efficiency is improved, but jam occurrence increases causing apparatus failure
Solution Approach 1:
The first detection sensor detects the presence of recording media before they enter the conveying mechanism. When bound recording media are detected, the system takes preliminary action to prevent them from entering the heating section, thereby preventing jams before they occur
Solution Approach 2:
The system uses detection sensors to provide feedback about the presence of recording media to the control unit. Based on this feedback, the control unit adjusts the conveying process to prevent bound media from causing jams, maintaining both productivity and reliability
3Reliability
If bound recording media are sorted and collected separately, then jam prevention is improved, but device complexity increases
Solution Approach 1:
Bound recording media are extracted from the main conveying stream using a separate discharge section. The second conveyance guide and discharge rollers extract problematic media before they can cause jams in the main processing path, maintaining simplicity while improving reliability
Solution Approach 2:
A control unit serves as an intermediary that manages the sorting process by receiving detection signals and controlling the discharge mechanism. This centralized control simplifies the overall system architecture while enabling effective separation of bound media
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 prevents jams by identifying and sorting recording media likely to cause them, ensuring continuous operation of the erasing apparatus by efficiently managing the conveying path and collecting jammed media.
Implementation Method 1
a heating roller configured to heat the recording medium to temperature equal to or higher than erasing temperature
Data Source
AI summary
According to one embodiment, an erasing apparatus includes: a recording medium sorting apparatus including a first conveyance guide having a curvature radius smaller than curvature radiuses of all curved surfaces present in a downstream direction in a recording medium conveying path, a second conveyance guide forming the recording medium conveying path in conjunction with the first conveyance guide and set to be capable of opening and closing the recording medium conveying path, and a displacing device configured to open and close the second conveyance guide; and a control unit. If the control unit determines that a jam occurs in the recording medium sorting apparatus, the control unit opens the second conveyance guide to collect a recording medium that causes the jam.