Document Reading Apparatus Multi-feed Detection Configuration
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Solution Overview
Problem
Existing document reading apparatuses require user intervention every time a multi-feed detection occurs, leading to cumbersome operation when scanning documents like envelopes or sheets with sticky notes, as they frequently detect multi-feed situations.
Innovation Solution
A document reading apparatus with a setting option to continue scanning even if multi-feed is detected, allowing users to select whether to suspend or continue scanning based on the multi-feed setting, thereby reducing the need for repeated user instructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the multi-feed detection sensor detects multi-feed of the document, then the conveyance of the document stops, but the user needs to give an instruction to resume conveyance every time, which is cumbersome
Solution Approach 1:
The patent applies dynamics by making the conveyance resumption behavior adjustable through user settings. The system can dynamically change from stopping conveyance upon multi-feed detection to continuing conveyance, based on user preferences. This resolves the contradiction by allowing the system to adapt its response to multi-feed detection, maintaining detection reliability while improving operational convenience through user-configurable flexibility.
Solution Approach 2:
The patent changes the parameter of conveyance resumption behavior based on user settings. By allowing users to modify the setting that determines whether conveyance stops or continues after multi-feed detection, the system adjusts its operational parameters to balance between reliable multi-feed detection and ease of operation, eliminating the need for repeated user instructions to resume conveyance.
2Reliability
If the conveyance stops every time multi-feed is detected, then the document reading can be stopped to prevent errors, but the scanning efficiency decreases due to repeated interruptions
Solution Approach 1:
The patent makes the conveyance resumption behavior dynamic and user-configurable. Users can select whether to stop or continue conveyance after multi-feed detection, allowing the system to adapt between reliability mode (stopping conveyance) and productivity mode (continuing conveyance). This dynamic adjustment resolves the contradiction by enabling users to prioritize either accuracy or efficiency based on their specific needs.
Solution Approach 2:
The patent changes the operational parameter of conveyance behavior based on user settings. By allowing users to modify the setting that controls whether conveyance stops or continues after multi-feed detection, the system can adjust between prioritizing document reading accuracy and maintaining scanning efficiency, thereby resolving the contradiction between reliability and productivity.
3Adaptability or versatility
If the document reading apparatus waits for user instruction to resume conveyance, then the system responds to user needs, but the operation becomes cumbersome when handling documents like envelopes that frequently trigger multi-feed alerts
Solution Approach 1:
The patent applies dynamics by making the system's response to multi-feed detection configurable. Users can set the system to either wait for instruction or automatically continue conveyance, allowing the system to adapt its behavior based on the document type and user preferences. This resolves the contradiction by enabling automatic operation for frequently multi-fed documents like envelopes while maintaining user control when needed.
Solution Approach 2:
The patent enables self-service by allowing users to configure the system to automatically handle multi-feed situations without requiring repeated user instructions. The system can self-determine whether to stop or continue conveyance based on user-set parameters, reducing operational complexity while maintaining adaptability to different document types and user needs.
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
This solution enables continuous scanning without user intervention when multi-feed is detected, improving efficiency and convenience, especially when handling documents that frequently trigger multi-feed alerts, such as envelopes or sheets with sticky notes.
Implementation Method 1
detecting, using a multi-feed detection sensor such as an ultrasonic wave sensor, that multi-feed has occurred in the conveyed document
Data Source
AI summary
A document reading apparatus includes a conveying unit to convey a document, a reading unit to read an image of the conveyed document, a detecting unit to detect multi-feed of the conveyed document, a setting unit, a stopping unit, and a displaying unit. The setting unit makes a setting indicating whether, based on detecting multi-feed of the document, conveyance of the document is to stop. The stopping unit stops conveyance of the document where the made setting indicates that, in response to detecting multi-feed of the document, the conveyance of the document is to stop. Where the made setting indicates that, in response to detecting multi-feed of the document, the conveyance of the document is to stop, the displaying unit displays a screen for receiving, from a user, an instruction not to stop conveyance of the document, even in a case where the detecting unit detects multi-feed of the document.