Developer Replenishment Container Coupling for Clean Toner Transfer
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Solution Overview
Problem
Existing developer supplying systems for electrophotographic image forming apparatuses lack an efficient mechanism for independently establishing communication between the developer supply container and receiving apparatus, leading to potential contamination and inefficiencies in developer discharge.
Innovation Solution
A developer supplying system with a developer receiving apparatus and supply container designed to have a movable developer receiving portion that aligns with the container's discharge opening, utilizing a shutter mechanism and a displacement-type pump to ensure seamless communication and controlled discharge of developer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the developer receiving portion is displaced toward the discharge opening of the developer supply container in accordance with the mounting operation, then the communication between container and receiving apparatus is established, but the structure becomes more complex and the mounting operation becomes more difficult
Solution Approach 1:
The developer receiving portion is pre-positioned at a first position away from the discharge opening. During mounting, the container is moved to a second position where the receiving portion automatically displaces toward the discharge opening to establish communication. This preliminary positioning simplifies the overall structure while ensuring reliable communication establishment through the automatic displacement mechanism triggered by container mounting.
2Reliability
If the developer receiving portion is displaced toward the discharge opening during mounting, then communication is established, but the risk of developer contamination increases
Solution Approach 1:
The developer receiving portion is pre-positioned at a first position away from the discharge opening before container mounting. The automatic displacement toward the discharge opening occurs only after the container is properly mounted, ensuring that the receiving portion is protected from contamination during the mounting process and only exposes itself to the discharge opening when communication needs to be established.
3Device complexity
If the developer receiving portion remains at a fixed position, then the structure is simpler, but the communication with the container discharge opening cannot be established reliably
Solution Approach 1:
The developer receiving portion is designed to be movable between a first position (away from the discharge opening) and a second position (toward the discharge opening for communication). This dynamic positioning allows the system to maintain simple structure when not in use while enabling reliable communication establishment when the container is mounted, resolving the contradiction between structural simplicity and communication reliability.
Data Source
Figure 1
Figure 2
Figure 3(a)~3(b)
AI summary
A developer supply container is detachably mountable to a developer receiving apparatus including a developer receiving portion provided with a receiving opening for receiving a developer, and a portion-to-be-engaged 11b integrally displaceable with the developer receiving portion. The developer supply container includes a discharging portion provided with a shutter opening for discharging the developer accommodated in the developer accommodating portion. An operation portion 21 displaces the developer receiving portion to bring the receiving opening into communication with the shutter opening by engagement between the engaging portion 21d and the portion-to-be-engaged 11b by a predetermined operation executed after the developer supply container is mounted to a predetermined position of the developer receiving apparatus.