Hands-Free Cassette Opening via Motion Detection
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Solution Overview
Problem
Conventional image forming apparatuses require users to manually withdraw and refill cassettes, which is cumbersome, especially when users are holding sheets with both hands, as they need to temporarily place the sheets to free their hands to withdraw the cassette.
Innovation Solution
An image forming apparatus equipped with motion sensors, LEDs, a camera, and an ultrasonic sensor that automatically opens the cassette when a user performs a specific motion, such as toe movement, detected by the motion sensor, allowing for hands-free operation and ensuring safe distance for cassette opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual cassette withdrawal and refilling is performed, then the cassette can be refilled with sheets, but the user's hands are occupied and the operation becomes troublesome
Solution Approach 1:
The system automatically detects when the cassette is empty and opens it for the user, allowing the user to refill sheets without manually withdrawing or opening the cassette. The cassette essentially serves itself by automatically opening when needed, eliminating the need for complex manual operations.
Solution Approach 2:
The patent replaces manual mechanical operations (withdrawing cassette, opening it) with an automated detection and control system. The motion sensor detects user presence and intent, triggering automatic cassette opening, thereby substituting mechanical user actions with an automated control system.
2Ease of operation
If the cassette is opened automatically when user motion is detected, then hands-free operation is enabled, but the risk of accidental contact increases
Solution Approach 1:
The system performs preliminary detection of user motion and presence before opening the cassette. By detecting motion patterns and confirming user intent in advance, the system ensures that the cassette only opens when the user is ready and positioned safely, preventing accidental contact while maintaining hands-free convenience.
Solution Approach 2:
The motion sensor provides continuous feedback about user presence and motion patterns. This feedback loop allows the control system to monitor user behavior in real-time and adjust cassette opening timing accordingly, ensuring safety while enabling hands-free operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances user convenience by enabling hands-free cassette refilling and prevents accidental contact by ensuring a safe distance is maintained during the opening process, simplifying the sheet feeding operation.
Implementation Method 1
a motion sensor configured to detect a motion of a person
Implementation Method 2
an ultrasonic sensor configured to measure a distance to a person
Data Source
AI summary
An image forming apparatus includes an image forming unit configured to form an image on a sheet, a cassette configured to accommodate sheets to be supplied to the image forming unit, an opening mechanism configured to open the cassette, a motion sensor configured to detect a motion of a person, and a processor configured to control the opening mechanism to open the cassette in response to the motion sensor detecting a specific motion of a person.