Electric Paper Tray Dynamics for ADF Height and Alignment
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Solution Overview
Problem
Conventional automatic document feeders face limitations in height reduction and paper alignment, leading to inconvenient operation, especially for users unfamiliar with the device, due to the arrangement of the output tray below the paper loading tray, resulting in unaligned and stacked paper and restricted speed.
Innovation Solution
An electric paper tray with a pivotally mounted paper holding element, a power unit, and a lifting module that automatically opens and closes, allowing the tray to rotate between a closed position for a continuous surface appearance and an open position to form a receiving space, enhancing paper alignment and stacking quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the output tray is arranged below the paper loading tray to reduce device height, then the device height is reduced, but the paper alignment deteriorates and stacking quality worsens
Solution Approach 1:
The output tray is designed to dynamically change its position between a lower position (when paper loading tray is present) and an upper position (when paper loading tray is removed). This dynamic adjustment allows the system to adapt to different operational modes, achieving both compact height during normal operation and proper paper alignment during single-tray operation through automated position switching controlled by sensors and driving mechanisms.
2Manufacturing precision
If the output tray is arranged above the paper loading tray to improve paper alignment, then paper stacking quality is improved, but the device height increases
Solution Approach 1:
The output tray employs a dynamic position adjustment mechanism that automatically transitions between upper and lower positions based on the presence of the paper loading tray. When the paper loading tray is removed, the output tray moves to the upper position to provide proper paper alignment and stacking. When the paper loading tray is present, the output tray moves to the lower position to maintain compact device height. This dynamic switching is controlled by detection sensors and driving mechanisms.
3Device complexity
If manual operation of the output tray is required for unfamiliar users, then device complexity is reduced, but ease of operation deteriorates
Solution Approach 1:
The output tray system implements self-service functionality through automated detection and positioning mechanisms. Detection sensors automatically identify when the paper loading tray is present or removed, and the driving mechanism automatically adjusts the output tray position accordingly without requiring user intervention. This eliminates the need for users to manually operate the tray, improving ease of operation while maintaining relatively simple device complexity through automated control.
4Device complexity
If the output tray position is fixed to accommodate both trays, then device complexity is reduced, but adaptability deteriorates
Solution Approach 1:
The output tray position adjustment mechanism dynamically changes the tray position based on the operational mode. When both trays are used, the output tray is positioned below the paper loading tray. When only one tray is used, the output tray is positioned above the paper outlet. This dynamic positioning capability provides adaptability to different tray arrangements while maintaining relatively simple device complexity through automated control based on sensor detection.
Data Source
AI summary
An electric paper tray includes a base, a paper holding element pivotally mounted to at least one side of the base, a power unit arranged at the base, and a lifting module connected between the paper holding element and the power unit. The lifting module is movably mounted under the paper holding element. When the lifting module is driven by the power unit to move to a first position, with respect to the base, the lifting module drives the paper holding element to make the paper holding element rotate to a closed position, when the lifting module is driven by the power unit to move to a second position, with respect to the base, the lifting module drives the paper holding element to make the paper holding element rotate to an opened position.