Toner Cartridge Switch Assembly Staged Opening
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Solution Overview
Problem
Toner leakage during the opening of the toner outlet in toner cartridges leads to contamination of non-corresponding areas in imaging devices, resulting in printing defects and waste of toner.
Innovation Solution
A toner cartridge design featuring a switch assembly that slides between open and closed positions, with a compression spring mechanism to delay the opening of the toner outlet and ensure alignment with the imaging device's inlet, reducing leakage by staging the opening process and containing any leakage within the correct area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the switch member rotates to open the toner outlet, then the toner outlet is opened to allow toner flow, but toner leakage occurs and contaminates non-corresponding areas
Solution Approach 1:
The switch member is designed to perform preliminary alignment action before full opening. The inclined surface guides the switch member to first align with the toner inlet, ensuring proper positioning is achieved before the toner outlet fully opens, preventing toner from leaking to incorrect locations.
Solution Approach 2:
An intermediary guiding structure with an inclined surface is introduced between the switch member and the toner outlet. This intermediary element controls the opening process by forcing the switch member to follow a predetermined path that ensures alignment before opening, thereby preventing toner leakage to non-corresponding areas.
2Productivity
If the toner outlet opens before complete alignment with the toner inlet, then toner flow is initiated, but toner leaks into the imaging device causing printing defects
Solution Approach 1:
The switch member must first complete the preliminary alignment action with the inclined surface before the toner outlet can fully open. This ensures that alignment precision is achieved before toner flow is initiated, preventing toner leakage and printing defects.
Solution Approach 2:
The inclined surface acts as an intermediary that mediates between the switch member and the toner outlet opening. It enforces a sequential process where alignment must be completed before opening can occur, ensuring manufacturing precision is maintained during toner flow initiation.
3Ease of operation
If a rotating switch member is used to open the toner outlet, then the outlet can be opened, but the structure becomes complex with additional components
Solution Approach 1:
Instead of using a rotating switch member that requires complex torsion springs and multiple contact points, the invention inverts the approach by using a sliding switch member. This simplifies the structure by eliminating the need for rotational mechanisms while achieving the same outlet opening function.
Solution Approach 2:
The complex rotational components (torsion spring, rotating shaft) are extracted and replaced with a simpler sliding mechanism. The switch member simply slides along a guide rail to open and close the toner outlet, removing unnecessary structural complexity while maintaining operational functionality.
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 effectively minimizes toner leakage and contamination, ensuring accurate toner flow and reducing printing defects by staged opening of the toner outlet, thus improving the reliability and efficiency of toner cartridge integration with imaging devices.
Implementation Method 1
a compression spring mechanism to delay the opening of the toner outlet
Data Source
AI summary
A toner cartridge is provided. The toner cartridge can be removably mounted on an imaging device. The toner cartridge includes a housing with a toner storage; a toner outlet aligned with a toner inlet on the imaging device; and a switch assembly disposed between the toner outlet and the toner inlet and controlling toner in the toner cartridge to flow from the toner outlet into the toner inlet. The switch assembly slides between a first position to open the toner outlet and a second position to close the toner outlet.