Printing Device Light-Shielding Segmentation for Icon Indicators
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Solution Overview
Problem
In printing devices where light sources are positioned on a device body and indicators are on an opening/closing cover, it is challenging to effectively prevent leakage of exit light into adjoining indicators due to the arrangement and structure of light-shielding members, leading to potential light leakage and dust accumulation.
Innovation Solution
A printing device design with light sources on the device body and indicators on the opening/closing cover, featuring first light-shielding portions on the cover between indicators and second light-shielding portions on the device body between light sources, minimizing gaps and preventing light leakage while maintaining a clean and dust-free structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If light-shielding members are provided extending from portions between light sources to portions between indicators, then light leakage into adjoining indicators is prevented, but the structure becomes difficult to implement when light sources are on the device body and indicators are on an opening/closing cover
Solution Approach 1:
The light-shielding function is segmented into two separate components: first light-shielding portions on the opening/closing cover and second light-shielding portions on the device body. This segmentation allows each component to be independently designed and positioned, making the overall structure easier to implement while maintaining effective light shielding between adjacent indicators and light sources.
2Manufacturing precision
If light-shielding members are arranged to prevent light leakage, then indicator brightness uniformity is improved, but gaps between components increase leading to dust accumulation
Solution Approach 1:
The first light-shielding portions and second light-shielding portions are positioned to abut against each other, merging their light-shielding functions into a continuous barrier. This merging eliminates gaps that would otherwise accumulate dust, while maintaining the precision needed to prevent light leakage into adjacent indicators.
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 effectively suppresses light leakage into indicators and reduces dust accumulation, ensuring improved cleanliness and uniform indicator brightness by minimizing gaps and optimizing light-shielding configurations.
Implementation Method 1
a plurality of light sources provided on the device body; a plurality of icon indicators provided in the opening/closing cover at positions corresponding to the plurality of light sources
Implementation Method 2
first light-shielding portions provided on the opening/closing cover at positions between the plurality of icon indicators; and second light-shielding portions provided on the device body at positions between the plurality of light sources
Data Source
AI summary
A printing device according to the present disclosure includes: a device body; an opening/closing cover pivotably provided on the device body; a plurality of light sources provided on the device body; a plurality of icon indicators provided in the opening/closing cover at positions corresponding to the plurality of light sources when the opening/closing cover is closed; first light-shielding portions provided on the opening/closing cover at positions between the plurality of icon indicators; and second light-shielding portions provided on the device body at positions between the plurality of light sources.