Resin Conductive Path for Developer Detection Accuracy
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Solution Overview
Problem
Existing developer remaining amount detection systems in image forming apparatuses require complex metal wiring arrangements for capacitance measurement, which complicates the structure and accuracy of developer level sensing.
Innovation Solution
A developer container with a frame, a detecting member, and a conductive path that includes resin, where the detecting member is configured to detect developer amount based on capacitance changes, and the conductive path is designed to transmit detection signals, with parts of the path positioned outside the frame's side wall surface to simplify the structure and improve positional accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal wiring is used for the conductive path in the capacitance detection system, then electrical conductivity is ensured, but the structure becomes complex and positional accuracy deteriorates
Solution Approach 1:
The patent replaces the traditional metal wiring (mechanical/conductive system) with a resin-based conductive path that includes conductive particles or conductive filler. This substitution maintains electrical conductivity while simplifying the overall structure and improving positional accuracy in the capacitance detection system for developer remaining amount measurement.
Solution Approach 2:
The conductive path is formed using composite material consisting of resin matrix combined with conductive particles or conductive filler. This composite approach ensures adequate electrical conductivity for the capacitance detection while allowing the path to be integrated into the housing structure, thereby simplifying the device complexity and improving manufacturing precision.
2Reliability
If metal wiring is used for the conductive path, then electrical connection is achieved, but manufacturing precision and positional accuracy are reduced
Solution Approach 1:
The conductive path made of resin and conductive particles is merged directly into the housing structure as an integrated component. This merging eliminates the need for separate metal wiring assemblies, thereby improving manufacturing precision and positional accuracy of the capacitance detection electrodes while maintaining reliable electrical connection for developer level sensing.
3Difficulty of detecting and measuring
If complex metal wiring arrangement is used, then capacitance measurement is enabled, but the overall device structure becomes complicated
Solution Approach 1:
The patent substitutes complex metal wiring arrangements with a simplified resin-based conductive path embedded in the housing. This substitution maintains the capacitance measurement capability while dramatically reducing the complexity of the wiring arrangement, making the developer remaining amount detection system easier to manufacture and maintain.
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
The use of resin in the conductive path simplifies the structure, reduces positional tolerance, and enhances the accuracy of developer remaining amount detection, allowing for more precise user notifications when replacement is needed.
Implementation Method 1
measures capacitance between both of the electrodes, and detects the amount of the developer
Data Source
AI summary
The present disclosure relates a developer container for accommodating a developer. The developer container includes a conductive path.The conductive path includes a resin.