Developer Container Rotating Shutter Restriction for Easier Attachment
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Solution Overview
Problem
The operability of attaching a developer container to an image forming apparatus is hindered by existing configurations, particularly in image electrophotographic type devices where the developer container is detachable.
Innovation Solution
A developer container system with a rotatable shutter and a restriction mechanism, including a rotating member and a rotation restricting mechanism, ensures the container is securely attached with improved ease of use by engaging and disengaging the shutter through a rotating member and restricting member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a developer container with rotatable shutter is used, then the sealing function is improved, but the attachment operability deteriorates
Solution Approach 1:
The shutter is pre-positioned in the closed state within the developer container before attachment. The rotation restricting mechanism is pre-configured to automatically release when the container is properly attached, eliminating the need for manual shutter operation during attachment and improving both sealing reliability and attachment ease.
Solution Approach 2:
The rotation restricting mechanism is designed to automatically detect and respond to the attachment state, releasing the shutter rotation restriction automatically when the container is properly mounted. This self-activating mechanism improves attachment operability while maintaining sealing reliability without requiring additional user actions.
2Reliability
If a rotation restricting mechanism is added, then the shutter control is improved, but the device complexity increases
Solution Approach 1:
The rotation restricting mechanism is integrated with the attachment structure itself, combining the shutter control function with the mechanical coupling elements. This merging approach improves shutter control reliability while minimizing additional complexity by using existing structural elements for dual purposes.
Solution Approach 2:
The rotating member and its engaged portion serve multiple functions: they control shutter rotation, indicate attachment status, and provide a mechanical interface for the rotation restricting mechanism. This multi-functionality improves shutter control while reducing overall device complexity by eliminating separate control elements.
3Ease of operation
If the rotating member is exposed outside the apparatus, then the shutter operation is improved, but the structural complexity increases
Solution Approach 1:
The exposed rotating member serves dual purposes: it acts as the operational interface for shutter control and simultaneously functions as the engagement element for the rotation restricting mechanism. This multi-functionality improves shutter operation ease while minimizing structural complexity by avoiding separate control and restriction elements.
Solution Approach 2:
The rotating member acts as an intermediary element that translates external user input (rotation) into internal shutter control actions. This intermediary approach improves operational ease by providing an accessible interface while managing structural complexity through a single integrated component that mediates between user interaction and shutter actuation.
Data Source
AI summary
An attached portion of an image forming apparatus includes a rotating member of which at least a part is exposed outside the image forming apparatus when the developer container is attached, and a rotation restricting mechanism that is movable between a restricting position to restrict rotation of the rotating member and an allowable position to allow rotation of the rotating member, and includes a restricting member that is at the restricting position when the developer container is not attached. The developer container is attached to the attached portion so that the discharging portion engaging portion and the shutter engaging portions are engaged with the frame engaged portions and the rotating member engaged portions respectively when the container shutter is in the close state, and the restricting member moves from the restricting position to the allowable position when the developer container is attached to the attached portion.