Rotary Toner Cartridge Access with a Single Shared Opening
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Solution Overview
Problem
Existing image forming apparatuses with rotary developing systems face challenges in efficiently and conveniently replacing toner cartridges, leading to operational inefficiencies and user confusion due to multiple openings and complex attachment mechanisms.
Innovation Solution
A rotary image forming apparatus with a single opening and a movable tray system allows toner cartridges to be attached and detached through a shared opening, using a rotating mechanism that synchronizes with the movement of the cartridges to open and close the access point, simplifying the replacement process and improving user operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple openings are provided for attaching and detaching toner cartridges, then the attachment mechanism can be simplified, but the device complexity and structural integrity deteriorate
Solution Approach 1:
The patent merges multiple openings into a single opening that serves multiple functions. The single opening accommodates both the attachment/detachment operation and the toner replenishment operation, eliminating the need for separate openings for each function and thereby reducing device complexity while maintaining ease of operation.
Solution Approach 2:
The single opening is designed with multi-functionality, serving as the access point for both attaching/detaching toner cartridges and replenishing toner. This universal opening reduces the overall number of openings required in the device, improving structural integrity while maintaining operational convenience.
2Ease of operation
If a fixed opening is provided for toner cartridge attachment, then the attachment mechanism is simplified, but the structural integrity and dust protection deteriorate
Solution Approach 1:
The patent employs a movable tray that can be shifted between a retracted position (when not in use) and a protruding position (when attachment is needed). This dynamic mechanism allows the opening to remain closed and protected during normal operation, maintaining structural integrity, while still enabling easy attachment when the tray is moved to the appropriate position.
Solution Approach 2:
The movable tray is pre-positioned in a retracted state to maintain structural integrity and dust protection. When attachment is required, the tray is preliminarily moved to the protruding position, creating the opening only when needed. This preliminary action ensures that the opening is not permanently exposed, thereby preserving strength while enabling simplified attachment.
3Adaptability or versatility
If multiple separate mechanisms are provided for different operations, then operational flexibility is improved, but the device complexity and space requirements increase
Solution Approach 1:
The patent combines multiple operations (attachment, detachment, and toner replenishment) into a single integrated mechanism involving the movable tray. By merging these operations into one system, the patent reduces device complexity and space requirements while maintaining operational flexibility, as the same mechanism can accommodate different operations depending on the tray position and configuration.
Data Source
AI summary
An image forming apparatus includes a rotatable rotary including a developing roller and a storage frame including a storage portion to store toner, a body frame with an opening, a toner cartridge which is attachable to and detachable from the rotary through the opening, which is movable to an attached position and a retracted position, a moving device to move the toner cartridge from the attached position to the retracted position, and an opening/closing member provided to be movable between a closed position and an open position. The opening/closing member moves from the closed position to the open position in an interconnected manner with movement of the toner cartridge from the attached position to the retracted position by the moving device.