Document Reading Apparatus Tray Status Transport Control
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Solution Overview
Problem
Existing document reading apparatuses with automatic document feeders struggle to manage document transport effectively when the discharge tray is either closed or full, leading to potential paper jams and document damage.
Innovation Solution
The apparatus includes a document tray, a first discharge tray that can pivot between closed and open states, a straight transport route, a reading device, and a control device. The control device restricts document transport and reading when the discharge tray is closed or full, preventing paper jams and allowing transport and reading when the tray is open or not full.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If document transport is continuously performed through the horizontal transport route, then productivity is improved, but paper jams occur when the discharge tray is closed or full
Solution Approach 1:
The control device continuously monitors the discharge tray status through detection devices and uses this feedback information to dynamically control the transport device. When the tray is closed or full, transport is automatically restricted, preventing paper jams while maintaining continuous operation when conditions are favorable.
Solution Approach 2:
The system performs preliminary detection of the discharge tray status before initiating document transport. By checking whether the tray is closed or full in advance, the control device prevents transport operations that would lead to paper jams, ensuring reliable operation from the outset.
2Adaptability or versatility
If the discharge tray is made pivotable between closed and open states, then adaptability is improved, but device complexity increases
Solution Approach 1:
The discharge tray is designed as a dynamic component that can pivot between closed and open states rather than being fixed. This dynamic configuration allows the system to adapt to different operational requirements while using a simple pivot mechanism rather than complex multi-position adjustment systems.
Solution Approach 2:
The discharge tray mechanism is segmented into independent functional components: the pivotable tray structure, the detection devices for monitoring status, and the control logic. This segmentation allows each component to perform its specific function with simple design, reducing overall system complexity while maintaining adaptability.
Data Source
AI summary
A document reading apparatus includes a first discharge tray that assumes a closed state or an open state, by pivoting about a first pivotal shaft, a first transport route linearly extending from a document tray to the first discharge tray, a first reading device that reads an image of the document, a transport device that transports the document through the first transport route, and a controller that, when an instruction to read the document is inputted to an input device, restricts the transport device from transporting the document and the first reading device from reading the image, when the closed state or a full state of the first discharge tray is detected by a first detector, and allows the transport device to transport the document and the first reading device to read the image, when neither of the closed state and the full state is detected by the first detector.