Detachable Cyclone Toner Separator for Maintenance Access
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Solution Overview
Problem
In large and high-speed image forming apparatuses using the dry electro-photographic method, existing technologies face challenges with clogged filters and toner particle accumulation in cyclone separators, leading to reduced productivity and maintenance inefficiencies due to the fixed nature of cyclone separators and filters.
Innovation Solution
A detachable toner particle collecting unit incorporating a cyclone separator with a tangentially flowing air inlet and a U-shaped outlet tube, which centrifuges toner particles from the air and directs cleaned air externally, preventing toner particles from adhering to the apparatus during maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter is used to collect flying toner particles, then toner particles can be filtered and collected, but the filter becomes clogged and requires frequent exchange
Solution Approach 1:
The invention extracts the cyclone separator from the fixed apparatus structure and makes it a detachable unit that can be easily removed and exchanged. This allows the cyclone separator to be taken out for maintenance without disassembling the entire apparatus, thereby improving maintenance productivity while maintaining effective toner particle collection
Solution Approach 2:
The invention changes the collection method from filtration to cyclone separation, which operates on different physical parameters (centrifugal force based on particle size and density) rather than filtration. This parameter change allows for easier maintenance and exchange of the collection unit without the clogging issues associated with filters
2Reliability
If cyclone separators are fixed into the image forming apparatus, then toner particles can be separated effectively, but the collection box and filters must be separated for cleaning and toner particles may drop during separation
Solution Approach 1:
The invention merges the cyclone separator and collection box into a single integrated detachable unit. This combination allows both components to be removed and exchanged together as one unit, eliminating the need to separate them during maintenance and preventing toner particle drop that would occur during separation
Solution Approach 2:
The invention segments the toner particle collection system from the main apparatus by making the cyclone separator and collection box a detachable unit. This segmentation allows the collection system to be independently removed and maintained without affecting the rest of the apparatus, improving maintenance ease while maintaining separation effectiveness
3Reliability
If filters are used to exhaust cleaned air, then air can be filtered, but the filters become clogged and require exchange
Solution Approach 1:
The invention extracts the air channel and filter assembly from the fixed apparatus structure and incorporates them into the detachable cyclone separator unit. This allows the entire air cleaning system to be removed and exchanged as one unit, eliminating the time loss associated with separate filter exchange operations while maintaining air cleaning effectiveness
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 solution significantly enhances toner particle collection efficiency, allows for easy maintenance by removing the cyclone separator and collection box as a single unit, and minimizes toner particle drop within the apparatus, thereby improving maintenance productivity and reducing filter clogging.
Implementation Method 1
the air flow, carrying the flying toner particles, is introduced in a cyclone main body in a tangential direction, whereby the flying toner particles are separated from the air by the swirl flow
Implementation Method 2
the cyclone separator is configured to centrifuge the toner particles from the air including toner particles due to swirl flow generated in the cyclone main body
Data Source
AI summary
An image forming apparatus includes a first air flow duct for guiding air including flying toner particles created in the image forming apparatus, a second air flow duct having a fan for exhausting cleaned air to an exterior of the image forming apparatus, and a toner particle collecting unit arranged between the first air flow duct and the second air flow duct. The toner particle collecting unit includes a cyclone separator including a cyclone main body, an air flow inlet, and an outlet tube. The cyclone separator centrifuges the toner particles from the air including toner particles and exhausts the cleaned air through the outlet tube. The apparatus further includes a toner particle collection box, mounted under the cyclone separator, and an air channel section for guiding the cleaned air from the outlet tube to the second air flow duct. The toner particle collecting unit is detachable.