Developer Replenishing Container Shutter Mechanism
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Solution Overview
Problem
The reuse of developer replenishing containers in electrophotographic image forming apparatuses is costly and labor-intensive due to the need for multiple steps such as collection, disassembly, assessment, and cleaning before refilling, which increases the overall cost and complexity of providing a replenished container.
Innovation Solution
A developer replenishing container with a shutter mechanism that allows for detachable attachment to a developer replenishing device, enabling easy refilling without disassembly, featuring a movable shutter that seals, replenishes, and fills the container, minimizing the steps required for reuse and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a developer replenishing container is reused by collecting, disassembling, assessing, and cleaning it before refilling, then the container can be reused, but the cost and complexity of providing a replenished container increases
Solution Approach 1:
The invention divides the container system into two functional parts: a reusable container body and a replaceable shutter component. The shutter is designed as a separate, detachable element that can be independently replaced or maintained, while the container body remains intact for reuse. This segmentation allows the container to be refilled without disassembling the entire structure, simplifying the refilling process while enabling component-level replacement when needed.
Solution Approach 2:
The invention applies the disposable principle to the shutter component rather than the entire container. The shutter is designed as a lower-cost, replaceable part that can be discarded and replaced when worn or damaged, while the expensive container body is preserved and reused. This selective disposability reduces overall costs by replacing only the necessary component rather than the entire assembly.
2Reliability
If the replenishing opening is sealed during storage and transport, then developer leakage is prevented, but refilling requires disassembly of the container
Solution Approach 1:
The shutter is designed as a dynamic component that can transition between different states: closed (sealing the replenishing opening during storage and transport), open (allowing developer to flow during replenishment), and removed (enabling container cleaning). This dynamic functionality eliminates the need for permanent disassembly while maintaining sealing integrity when needed, resolving the contradiction between reliable sealing and easy refilling.
3Adaptability or versatility
If the shutter is designed to move between multiple positions (sealing, replenishing, filling), then functionality is improved, but the shutter mechanism becomes more complex
Solution Approach 1:
The shutter mechanism is designed to be operator-driven rather than requiring complex automated control systems. The user manually moves the shutter between positions by simple mechanical interaction, and the shutter's own weight and geometry provide natural positioning and sealing engagement. This self-service approach achieves multiple functions (sealing, replenishing, filling positions) without requiring complex motors, sensors, or control circuits, thereby maintaining simplicity while providing versatility.
Data Source
AI summary
A developer replenishing container configured to be detachably attachable to a developer replenishing device and to replenish developer via the developer replenishing device is disclosed. The developer replenishing container includes: a developer replenishing portion with a replenishing opening; and a shutter with at least one shutter opening that can communicate with the replenishing opening, the shutter being configured to open and close the replenishing opening according to attaching and detaching operations of the developer replenishing container, wherein the shutter is movable between a sealing position where the replenishing opening is sealed, a replenishing position where the shutter opening faces the replenishing opening to replenish developer from the developer replenishing container, and a filling position where the developer replenishing container is filled with developer without sealing the replenishing opening.