Rotatable Printer Panel with Rear Speaker for Accessibility
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Solution Overview
Problem
Existing printing devices face challenges in usability, particularly for users with visual or hearing impairments, as they often compromise between the size of the operation panel and the integration of speakers, which affects operability for users with tremors or other impairments.
Innovation Solution
A printing device design featuring a rotatable panel unit with a capacitive touch sensor and a speaker housed in the main unit, where the sound emitting hole is positioned to overlap the panel when viewed from the normal direction, allowing for intuitive operation through both visual and auditory feedback, and enabling a larger touch sensor size without increasing the panel's size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the speaker and microphone are integrated with the operation panel, then the operation can be performed based on both visual and auditory information, but the display area of the operation panel is pressed by the speaker and microphone, making it difficult to increase the size of the operation panel
Solution Approach 1:
The patent divides the device into separate functional modules: the operation panel (display) and the speaker are positioned as distinct components. The speaker is located at the rear of the printing unit, while the operation panel is positioned at the front, allowing each component to be optimized independently for its specific function without spatial interference.
Solution Approach 2:
The speaker is positioned in the rear direction (depth dimension) of the printing unit rather than occupying horizontal space on the operation panel. This spatial reconfiguration in the depth dimension allows the operation panel to maintain a large display area while the speaker provides auditory feedback from a different spatial location.
2Area of moving object
If the operation panel and the speaker are disposed separately, then the size of the operation panel can be increased, but it may be difficult to provide a printing device that can be operated in the same manner as a healthy person by a user having a visual or hearing impairment
Solution Approach 1:
The patent introduces a microphone as an intermediary component that captures user operations and transmits them to the processing unit. This allows the system to detect touch operations on the large display panel and provide corresponding auditory feedback through the speaker, enabling users with visual or hearing impairments to operate the device effectively.
Solution Approach 2:
The system implements a feedback loop where the microphone captures user input, the processing unit processes the input, and the speaker provides auditory confirmation. This multi-sensory feedback mechanism ensures that users with impairments can operate the device intuitively, with the speaker providing operational guidance and confirmation sounds that complement the visual display.
3Ease of operation
If a large operation panel is provided, then the operability is improved, but the device complexity increases
Solution Approach 1:
The patent segments the printing device into distinct functional zones: a large operation panel area for user interaction, a separate speaker location for auditory output, and a microphone position for input capture. This segmentation allows each component to be optimized for its function while maintaining overall system manageability through modular architecture.
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
This design enhances usability by allowing users with impairments to operate the device similarly to a healthy person, reducing the risk of operability deterioration and improving rotatability, even for users with tremors or using wheelchairs, while maintaining a compact form factor.
Implementation Method 1
a capacitive touch sensor (240) that receives a touch operation from a user
Implementation Method 2
a speaker (60) that outputs an operating sound including at least one of an operation sound corresponding to an operation of the panel unit (20) and a state sound indicating an operating state of the printing unit (10)
Data Source
AI summary
A printing device includes a panel unit which operation information for operating a printing unit is input, and a speaker that is stored in a main housing of the printing unit and outputs an operating sound, the main housing includes a sound emitting hole that emits the operating sound to an outside of the main housing, the sound emitting hole is located such that at least a part thereof overlaps the panel unit when the panel unit is viewed from the normal direction.