Laser Printer Plenum Filtration for Microscope Slide Emissions
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Solution Overview
Problem
Existing laser printing systems for microscope slides suffer from particulate matter and volatile organic compound emissions that accumulate on internal components, impairing functionality and lifespan due to inadequate air extraction and filtration methods.
Innovation Solution
A plenum system with a fan assembly and multiple filters is integrated into the laser printing system to capture and filter emissions directly, preventing accumulation on internal components and reducing emissions output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If air is flowed through axial fans and filters at the back of the laser printing system, then emissions are extracted and filtered, but particulate matter accumulates on internal mechanisms between the source and filter
Solution Approach 1:
The patent extracts the harmful polluted air immediately at its source using a plenum chamber positioned adjacent to the laser printing area, separating the extraction function from the rear exhaust system. This prevents particulate matter from traveling through and accumulating on internal mechanisms while still achieving effective emissions filtration through the connected axial fan and filter assembly.
Solution Approach 2:
The plenum chamber serves as an intermediary component between the laser printing source and the exhaust system. It captures polluted air locally and directs it through a dedicated extraction pathway, preventing direct contact between emissions and internal mechanisms while maintaining the exhaust function.
2Productivity
If axial fans draw air from front vents through internal mechanisms to rear filters, then emissions are removed, but particulate matter accumulates on electronic areas and moving components
Solution Approach 1:
The plenum chamber performs preliminary action by capturing and containing polluted air at the moment of generation, before it can disperse into the system. This preliminary capture prevents subsequent accumulation on components and eliminates the need for air to travel through internal mechanisms to reach the filters.
Solution Approach 2:
The patent segments the air extraction function from the general system airflow by creating a dedicated extraction pathway through the plenum chamber. This segmentation isolates the polluted air stream from internal mechanisms, allowing high-efficiency emissions removal without exposing components to particulate matter.
3Object-generated harmful factors
If filtered air is exhausted from the back of the system, then emissions are removed, but polluted air escapes into the environment
Solution Approach 1:
The plenum chamber extracts polluted air directly at the source and creates a contained volume that directs all emissions through the filtration system. This ensures complete capture and filtration of particulate matter and volatile organic compounds, preventing any polluted air from escaping into the environment through gaps or leaks in the system.
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
The system effectively reduces particulate matter and volatile organic compounds by up to ten times compared to previous methods, maintaining component functionality and extending the lifespan of the laser printing system.
Implementation Method 1
a fan assembly for extracting the polluted air comprising the emissions
Implementation Method 2
a pre-filter in fluid communication with the plenum, wherein the pre-filter receives a stream of air therethrough comprising the polluted air contained in the plenum, wherein a flow of the stream of air through the pre-filter filters out particulate matter
Implementation Method 3
a first filter to filter at least a portion of the particulate matter having a first size, wherein the first size of the particulate matter is less than the coarse size of the particulate matter filtered by the pre-filter
Implementation Method 4
a second filter to filter at least a portion of volatile organic compounds
Data Source
AI summary
Systems, methods, and devices for providing an extraction and filtration technique for polluted air output from a laser printing system. The extraction and filtration technique including a plenum proximate to a printing or marking area of the laser printing system for receiving emissions output from the laser printing system and containing polluted air comprising the emissions to reduce a volume of polluted air, one or more filters for filtering emissions from the polluted air, and a fan assembly in fluid communication with the plenum extracting the polluted air to flow a stream of the polluted air from the plenum and through the one or more filters to filter at least a portion of the particulate matter and volatile organic compounds from the polluted air to produce filtered air.