Developer Supply Device Rotation Control for Adherence Reduction
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Solution Overview
Problem
In developer supply devices that rotate developer containers, the remaining developer often adheres to the container walls, leading to inefficient use when the remaining amount decreases, resulting in a decrease in the developer supply amount per unit time.
Innovation Solution
A developer supply device with an adjustment mechanism to control the rotation angle of the developer container, switching between steady and discharge promoting modes to optimize developer discharge based on the remaining amount, ensuring efficient use of the developer by adjusting the rotation angle and frequency of the container's rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the developer container rotates continuously to supply developer, then the developer supply amount per unit time is maintained, but when the developer remaining amount decreases, the developer adheres to the container walls and cannot be used efficiently
Solution Approach 1:
The patent applies dynamics by changing the rotation characteristics of the developer container based on the remaining developer amount. When the developer amount is sufficient, the container rotates at a first rotation speed for efficient supply. When the developer amount decreases below a threshold, the rotation is stopped to prevent adherence to container walls, thus resolving the contradiction between maintaining supply rate and preventing substance loss.
Solution Approach 2:
The patent changes the rotation speed parameter of the developer container based on the remaining developer amount. By switching between a first rotation speed (when developer is sufficient) and stopping rotation (when developer is low), the system optimizes both developer supply efficiency and prevents wall adherence, thereby addressing the technical contradiction.
2Loss of substance
If the developer container stops rotation when developer remaining amount is low, then developer adherence to walls is reduced, but the developer supply amount per unit time decreases
Solution Approach 1:
The patent implements feedback control by monitoring the remaining developer amount and adjusting the container rotation accordingly. When the developer amount falls below a predetermined threshold, the system detects this condition and stops rotation to prevent wall adherence. This feedback mechanism ensures that productivity is maintained when possible while preventing substance loss when necessary.
Solution Approach 2:
The system dynamically adjusts the rotation state of the developer container based on real-time developer amount conditions. By transitioning between rotating and stopped states according to the remaining developer level, the system optimizes the trade-off between maintaining supply rate and preventing adherence, resolving the contradiction between these two opposing requirements.
Data Source
AI summary
A developer supply device includes a developer container, an adjustment mechanism, and a controller. The developer container is configured to supply developer by rotating. The adjustment mechanism is configured to adjust a rotation angle of the developer container. The controller is configured to control the rotation angle of the developer container by the adjustment mechanism according to a developer remaining amount in the developer container.