Rotatable Scanner Body with Automatic Separation Roller Control
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Solution Overview
Problem
Existing image reading apparatuses require users to manually switch between separation and non-separation functions for documents of different shapes, increasing operational complexity and user burden.
Innovation Solution
An image reading apparatus with a rotatable main body that automatically switches between postures and corresponding separation states, using a separation switching section to toggle the separation roller's function based on the apparatus's posture, eliminating the need for manual operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the apparatus main body is made rotatable to switch between postures suitable for different document shapes, then the adaptability to different document types is improved, but the device complexity increases due to additional switching mechanisms
Solution Approach 1:
The patent combines the posture switching mechanism with the separation function switching mechanism into a single integrated system. The separation roller's state (engaged or disengaged from the feeding roller) is automatically controlled based on the detected document shape, eliminating the need for separate manual switching operations and reducing overall device complexity while maintaining adaptability.
Solution Approach 2:
The apparatus automatically detects the document shape and self-adjusts the separation roller state without requiring user intervention. The system serves itself by using sensors to detect document characteristics and automatically configuring the appropriate reading mode, thereby reducing operational complexity while preserving versatility.
2Reliability
If manual switching between separation and non-separation functions is required, then the separation function can be precisely controlled, but the ease of operation deteriorates due to increased user burden
Solution Approach 1:
The apparatus employs automatic detection and switching mechanisms that sense document shape characteristics and autonomously adjust the separation roller state. This self-service approach eliminates manual switching operations, significantly improving ease of operation while maintaining reliable separation control through sensor-based detection and automated actuation.
Solution Approach 2:
The system incorporates sensors that detect document shape and provide feedback to the control mechanism, which then automatically adjusts the separation roller state accordingly. This feedback loop ensures reliable separation control is maintained while eliminating the need for manual user intervention, thereby improving ease of operation.
3Reliability
If the separation roller is always engaged for separation feeding, then the separation function is maintained, but the ability to read booklet-shaped documents without damage is lost
Solution Approach 1:
The separation roller is designed with dynamic capability to switch between engaged and disengaged states based on document type. For sheet-shaped documents, the roller remains engaged to provide separation feeding; for booklet-shaped documents, the roller is automatically disengaged to prevent damage, thereby maintaining both separation reliability and document shape adaptability.
Solution Approach 2:
The system changes the operational parameter of the separation roller (engaged/disengaged state) based on detected document characteristics. This parameter change allows the apparatus to maintain reliable separation function for appropriate document types while adapting to different document shapes, preventing booklet damage when required.
Data Source
AI summary
An apparatus main body of an image reading apparatus is capable of being switched between a first posture and a second posture in which an inclination angle is smaller than that of the first posture. The image reading apparatus is capable of switching between a separation state in which a separation roller separates a document and a non-separation state in which the separation roller does not separate the document. The image reading apparatus puts the separation roller in the separation state when the apparatus main body is in the first posture and puts the separation roller in the non-separation state when the apparatus main body is in the second posture.