18138867. DEVELOPING DEVICE simplified abstract (CANON KABUSHIKI KAISHA)
Contents
DEVELOPING DEVICE
Organization Name
Inventor(s)
DEVELOPING DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18138867 titled 'DEVELOPING DEVICE
Simplified Explanation
The patent application describes a developing device that includes a conveying screw and an inductance sensor. The inductance sensor is capable of detecting the magnetic permeability of developer with high sensitivity. The conveying screw consists of two portions, each with a rotary shaft and a blade. The first portion is positioned opposite the detector in the conveying direction, while the second portion is located downstream of the detector within one pitch of the first blade. The diameter of the second rotary shaft is larger than that of the first rotary shaft.
- The device includes a conveying screw and an inductance sensor.
- The inductance sensor has high detection sensitivity for the magnetic permeability of developer.
- The conveying screw is divided into two portions, each with a rotary shaft and a blade.
- The first portion is positioned opposite the detector in the conveying direction.
- The second portion is located downstream of the detector within one pitch of the first blade.
- The diameter of the second rotary shaft is larger than that of the first rotary shaft.
Potential Applications
This technology can be applied in various devices that require the detection of magnetic permeability, such as:
- Photocopiers
- Printers
- Scanners
- Fax machines
Problems Solved
The device solves the following problems:
- Ensures accurate detection of the magnetic permeability of developer.
- Provides high detection sensitivity even when the magnetic material is not directly on the detector.
- Allows for efficient conveying of the developer.
Benefits
The benefits of this technology include:
- Improved accuracy in detecting the magnetic permeability of developer.
- Enhanced sensitivity in detecting the magnetic material even at a distance.
- Efficient and reliable conveying of the developer.
Original Abstract Submitted
Disclosed is a developing device including a conveying screw and an inductance sensor. The inductance sensor includes a detector detecting magnetic permeability of developer and has such detection sensitivity that the detection sensitivity with which the detector detects magnet permeability when magnetic material is 1 mm away from the detector in a vertical direction is 10% or more of that when magnetic material is on the detector. The conveying screw includes a first portion having a first rotary shaft and a first blade and a second portion having a second rotary shaft and a second blade. The first portion is opposite the detector with respect to a conveying direction of the conveying screw. The second portion is downstream of a downstream end of the detector in the conveying direction within one pitch of the first blade. The second rotary shaft diameter is greater than the first rotary shaft diameter.
