Contiguous Light Indicator Assembly for Compact Printer Status Display
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Solution Overview
Problem
Media processing devices, such as label printers, face challenges in efficiently conveying multiple operational states to operators due to space constraints and increased manufacturing complexity using display panels or multiple indicator lights.
Innovation Solution
An indicator assembly with a set of contiguous illumination surfaces controlled by a controller, utilizing a mapping repository to manage light patterns and colors based on operational states, and incorporating light pipes to direct light to these surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If display panels are used to convey operational states, then information communication capability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The indicator assembly is segmented into multiple discrete light sources (LEDs or lasers) arranged in specific patterns, where each light source represents a specific operational state. This segmentation allows the system to convey multiple states through simple light presence/absence patterns rather than requiring a complex display panel.
Solution Approach 2:
The patent uses optical copies (light patterns) to represent operational states instead of physical display elements. The light sources create visual patterns that copy or represent the operational state information, eliminating the need for physical display panels while maintaining information communication capability.
2Loss of information
If multiple indicator lights are used to represent operational states, then information communication capability is improved, but manufacturing cost increases
Solution Approach 1:
Multiple light sources are merged into a single integrated indicator assembly housing, sharing common mounting structures, optical pathways, and control circuitry. This merging reduces the total component count and assembly complexity compared to using separate indicator lights, thereby reducing manufacturing cost while maintaining the ability to communicate multiple operational states.
3Loss of information
If display panels are used to convey operational states, then information communication capability is improved, but physical space requirements increase
Solution Approach 1:
The indicator assembly utilizes optical dimensionality by creating light patterns in three-dimensional space rather than requiring two-dimensional display panel real estate. The light sources can be arranged in vertical stacks or angular configurations, encoding operational state information through spatial light patterns that occupy minimal physical footprint on the device housing.
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
Effectively communicates a greater variety of operational states with reduced physical space and manufacturing complexity, enhancing user interface without increasing costs.
Implementation Method 1
an indicator assembly including a plurality of illumination surfaces illuminated by respective ones of a set of lights
Implementation Method 2
incorporating light pipes to direct light to these surfaces
Data Source
AI summary
A printer includes: a body defining a media enclosure configured to receive a media supply; an indicator assembly supported by an outer wall of the body, the indicator assembly including a plurality of substantially contiguous illumination surfaces illuminated by respective ones of a set of lights supported within the body; a controller supported by the body, the controller configured to: (i) obtain an operational status of the printer, (ii) retrieve, from a mapping repository, a set of notification control parameters corresponding to the operational status, and (iii) control the set of lights according to the notification control parameters.