Toner Container Projection Prevents Half-Insertion
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Solution Overview
Problem
Existing toner container engagement mechanisms require sequential release to prevent half-insertion errors, which can lead to user inconvenience and potential device malfunctions.
Innovation Solution
A toner container design featuring a projection with an inclined surface on its cover portion, allowing for smooth contact with the image forming device's contact points, ensuring correct alignment and preventing half-insertion by facilitating the closure of the device's cover, while maintaining compactness and efficient toner discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an engagement mechanism is provided to prevent half-insertion of the toner cartridge, then the reliability of toner cartridge installation is improved, but the device complexity increases and the operation becomes more complicated
Solution Approach 1:
The patent extracts the engagement mechanism from the image forming device body and relocates it to the toner cartridge itself. The toner cartridge includes a projection that engages with a corresponding groove in the image forming device, while the release mechanism is integrated into the toner cartridge's cover portion. This extraction simplifies the overall system by eliminating complex multi-component engagement mechanisms from the device body.
Solution Approach 2:
Instead of having the image forming device actively engage and hold the toner cartridge through complex mechanisms, the patent inverts the approach by having the toner cartridge itself provide the engagement projection and release mechanism. The toner cartridge actively engages with the device body through its projection and can be released by pressing the release button on its cover portion, simplifying the device body's structure.
2Reliability
If a multiple engagement mechanism is used to ensure correct toner cartridge installation, then the reliability is improved, but the ease of operation deteriorates due to sequential release requirements
Solution Approach 1:
The patent merges multiple engagement functions into a single integrated projection-groove system. The toner cartridge's projection engages with a corresponding groove in the image forming device, and the release mechanism is combined with the cover portion's button structure. This consolidation allows all engagement functions to be controlled through a single simple action (pressing the release button), eliminating the need for sequential release operations.
3Ease of operation
If the toner cartridge design is simplified to improve ease of operation, then the ease of operation is improved, but the reliability of preventing half-insertion deteriorates
Solution Approach 1:
The patent introduces an intermediary geometric feature - the projection with its specific shape and the corresponding groove - that mediates between the toner cartridge and image forming device. This intermediary structure ensures reliable engagement and prevents half-insertion while maintaining simple operation. The projection acts as a mediator that translates the simple insertion motion into reliable mechanical engagement.
Data Source
AI summary
In one embodiment, a toner container comprises a toner container body in which toner is stored, a cover portion configured to cover the toner container body, and a projection. The projection is provided in the vicinity of a rear end portion in a longitudinal direction of the cover portion or a longitudinal direction of the toner container body, and projecting toward a rear side of the toner container.