Cartridge Rotary Detection Mechanism
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Solution Overview
Problem
Existing electrophotographic printer cartridges lack an effective mechanism to allow external configurations to recognize when an unused cartridge is mounted, leading to inefficiencies in operation and potential misidentification.
Innovation Solution
The cartridge employs a configuration where the first and second rotary members are rotated by a driving force, conveying the developer and moving a detected part to enable external recognition of the cartridge's status, while also reducing space requirements through overlapping arrangements and utilizing agitators to stir the developer effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a detection mechanism is added to enable external recognition of unused cartridge, then the cartridge can be properly identified, but the cartridge size increases
Solution Approach 1:
The detection body is integrated within the existing cartridge structure, nested among the rotary members and gear mechanisms. The detection body moves with the rotary members rather than being a separate external component, allowing it to be accommodated within the cartridge's internal space without significantly increasing overall volume.
Solution Approach 2:
The rotary members serve dual functions: they drive the conveyance member to transport developer, and simultaneously drive the detection body to enable recognition. This multi-functionality eliminates the need for separate detection mechanisms, reducing the cartridge volume while maintaining recognition capability.
2Productivity
If multiple rotary members are added to drive conveyance and detection functions, then the cartridge recognition and developer conveyance are improved, but the device complexity increases
Solution Approach 1:
Multiple functions (developer conveyance and detection) are merged into a single integrated mechanism. The first and second rotary members work together as a unified system where the driving force from the driving receiving part is distributed to both conveyance and detection functions through gear connections, reducing overall complexity compared to separate mechanisms.
Solution Approach 2:
The rotary members are segmented into different functional zones: the first rotary member primarily drives the conveyance member for developer transport, while the second rotary member primarily drives the detection body for recognition. This segmentation allows each component to be optimized for its specific function while maintaining overall system efficiency.
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
A cartridge (1) including a housing (5) configured to accommodate therein developer, a driving receiving part (41) configured to receive a driving force, a first rotary member (50) configured to rotate by a driving force transmitted from the driving receiving part, a conveyance member (6) to which a driving force is configured to be transmitted by rotation of the first rotary member and configured to convey the developer, a second rotary member (51) configured to rotate by a driving force transmitted from the driving receiving part, and a detected part (62) configured to move by the rotation of the second rotary member, wherein the second rotary member is arranged to overlap with the first rotary member in an axis direction parallel with an axis of the first rotary member.