Waste Developer Container Magnet Detection Window
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Solution Overview
Problem
Existing image forming devices using two-component developer face challenges in accurately detecting the fullness of waste developer containers due to floating carrier particles adhering to the inner walls, which leads to premature detection of fullness and inefficient use of container capacity.
Innovation Solution
A waste developer container with a detection window and a magnet positioned to attract and prevent carrier particles from adhering to the inner surface, allowing for accurate detection of waste developer accumulation by emitting and receiving light without interference from floating carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If optical detection is used to detect waste developer fullness, then detection capability is provided, but carrier particles adhere to the detection window causing premature detection
Solution Approach 1:
A magnet is introduced as an intermediary component between the waste developer and the detection window. The magnet attracts and holds carrier particles away from the detection window surface, preventing them from interfering with the optical detection path while allowing the detection system to function accurately.
Solution Approach 2:
The magnetic field parameter is introduced to change the spatial distribution of carrier particles. By applying a magnetic field through the magnet, the carrier particles are forced to align and adhere to the magnet rather than the detection window, fundamentally changing their position and preventing premature detection.
2Measurement precision
If magnet is added to prevent carrier adhesion, then detection accuracy is improved, but device complexity increases
Solution Approach 1:
The magnet serves multiple functions: it prevents carrier particle adhesion to the detection window, maintains proper particle distribution in the waste developer, and potentially aids in the overall structural integrity of the container. This multi-functionality justifies the addition without proportionally increasing complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures reliable detection of waste developer fullness, preventing premature alerts and optimizing container usage by maintaining the magnetic attraction until actual fullness is reached, thus enhancing the operational efficiency of image forming devices.
Implementation Method 1
a magnet provided to a position where a magnetic force is applied to the detection window
Implementation Method 2
a detection window for passing light that is emitted from the waste developer amount detection unit, passes the container space, and is incident again to the waste developer amount detection unit
Data Source
AI summary
Provided is a waste developer container to be fixed to an image forming device including a developing device and a waste developer amount detection unit for obtaining information on an amount of accumulated waste developer discharged from the developing device, wherein the developing device uses toner image carrier holding a toner image and two-component developer to form a toner image, the waste developer amount detection unit obtains the information on the accumulated amount by emission and reception of light, and the waste developer container includes: a container space for containing waste developer discharged; a detection window for passing light that is emitted from the waste developer amount detection unit, passes the container space, and is incident again to the waste developer amount detection unit; and a magnet provided to a position where a magnetic force is applied to the detection window and light passing the detection window is not shut.