Paper Case with Sloping Walls for High-Capacity Scanner Feeding
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Solution Overview
Problem
Existing scanners with automatic paper feed devices (ADF) can only accommodate a limited number of paper sheets, requiring users to repeatedly load sheets for scanning large quantities, which is laborious and inefficient.
Innovation Solution
A paper case with a transport mechanism that includes a paper ejection opening, sloping side and front walls, an upper cover, and a positioning mechanism, allowing for increased sheet capacity and guided sheet transport, reducing user burden and minimizing sensor interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a traditional ADF is used, then the device complexity is low, but the quantity of paper sheets that can be accommodated is limited to only several tens
Solution Approach 1:
The paper feed system is divided into two separate components: a traditional ADF and a detachable paper case. The paper case serves as an external reservoir that feeds paper sheets to the ADF, allowing the system to accommodate hundreds or thousands of sheets without increasing the complexity of the ADF itself. This segmentation enables the ADF to maintain its simple structure while the paper case provides the extended capacity.
2Quantity of substance
If more paper sheets are placed on the paper stand, then the quantity of paper sheets increases, but the paper sheets cannot be reliably guided to the interior of the transport apparatus
Solution Approach 1:
The paper case acts as an intermediary component between the paper stand and the ADF. It includes a guide structure with side walls and a front wall that properly direct paper sheets toward the paper feed opening. This intermediary ensures that even with a large number of sheets, they are reliably guided into the ADF without jamming or misalignment.
3Reliability
If the front end of the paper case is inserted into the transport apparatus, then the guidance of paper sheets is improved, but sensor false detection may occur due to contact between the sensor and the front end
Solution Approach 1:
A recess is formed in the front end of the paper case, effectively removing or extracting the problematic protruding portion that would otherwise contact the sensor. This recessed design allows the paper case to be properly positioned with its front end inserted into the transport apparatus for reliable guidance, while the recessed area prevents direct contact between the front end and the sensor, eliminating false detection.
4Quantity of substance
If users repeatedly load paper sheets into the ADF for large quantity scanning, then the quantity of paper sheets processed increases, but the user burden and time consumption increase
Solution Approach 1:
The paper case allows users to pre-load a large number of paper sheets (hundreds or thousands) into a single container before operation. This preliminary action eliminates the need for repeated loading during the scanning process, as the ADF automatically draws sheets from the paper case's reservoir. The user performs the loading task once rather than repeatedly, significantly reducing time loss and user burden.
Data Source
AI summary
A paper case includes a paper ejection opening, side walls, and a front wall. When the paper case is mounted on a paper stand, the paper ejection opening is positioned at a front end facing a downstream side. In addition, the side walls are positioned on a first side and a second side in a direction intersecting a transport route and each have a height relative to the paper stand greater than a height of the paper feed opening relative to the paper stand. Furthermore, the front wall continues from the front end and slopes so that a height of the front wall relative to the paper stand increases toward an upstream side of the transport route.