Removable Cover Plate for Document Scanners
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Solution Overview
Problem
Conventional document reading devices require users to manually prepare and switch between white and black backgrounds, limiting serviceability and operability, especially when a black background is needed.
Innovation Solution
A document reading device with a removably mounted cover plate that can be easily replaced, featuring a configuration with a white and black sheet member, elastic cushions, and a transparent sheet, allowing for selective background use and enhanced durability, using hook and loop fasteners for mounting and dismounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If a cover plate is configured separately from the ADF structural body, then the cover plate can be easily replaced when broken, but the ADF structural body becomes heavy
Solution Approach 1:
The cover plate is designed as a separate, removable component from the ADF structural body, allowing independent replacement of the cover plate without replacing the entire ADF assembly. This segmentation enables easy repair while keeping the heavy structural body in place.
Solution Approach 2:
The cover plate is extracted as a separate replaceable component from the ADF structure. The mounting/dismounting device allows the cover plate to be easily removed and replaced, separating the repairable part from the permanent structural body.
2Adaptability or versatility
If a user needs black background, then the user must prepare a black background member beforehand and substitute it for white background, but this limits serviceability and operability
Solution Approach 1:
The cover plate is designed with multiple background options (white and black) integrated into a single component. The mounting/dismounting device allows users to switch between different background types without needing separate devices, providing universal functionality for different imaging requirements.
Solution Approach 2:
The cover plate configuration allows dynamic switching between different background types (white and black) through the mounting/dismounting device. Users can change the background type based on current needs, making the system adaptable rather than fixed.
3Ease of repair
If a document pressing member is made replaceable, then serviceability is enhanced, but the mounting and dismounting mechanism adds device complexity
Solution Approach 1:
The mounting/dismounting device is designed to be user-friendly and self-service capable, allowing users to easily install and remove the cover plate without requiring tools or complex procedures. The simplicity of the mounting mechanism offsets the added complexity by enabling easy user operation.
Data Source
AI summary
A document reading device of the present invention includes a glass platen on which a document is to be laid and document reading means including scanning optics for reading the image of the document laid on the glass platen. A document pressing member presses the document against the surface of the document table. The document pressing member is removably mounted to the body of the document reading device by hook and loop fasteners.