TWO-COMPONENT DEVELOPER AND IMAGE-FORMING APPARATUS

Organization Name

Inventor(s)

TWO-COMPONENT DEVELOPER AND IMAGE-FORMING APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18591259 titled 'TWO-COMPONENT DEVELOPER AND IMAGE-FORMING APPARATUS

Simplified Explanation: The patent application describes a two-component developer used in printing technology, consisting of a carrier and a toner with an external additive attached to the toner particle surface.

Key Features and Innovation:

Two-component developer with external additive containing fine powder with aluminum
Average primary particle diameter of 10 nm to 25 nm
Apparent density of 1.7 g/cm³ to 2.0 g/cm³
Resistance value of 1 GΩ or more at 1,000 V and 22 GΩ or less at 600 V

Potential Applications: This technology can be used in laser printers, photocopiers, and other printing devices that require high-quality toner for image reproduction.

Problems Solved: The technology addresses the need for developers with improved conductivity and stability for better printing results.

Benefits:

Enhanced image quality
Improved printing efficiency
Reduced maintenance and replacement costs

Commercial Applications: The technology can be applied in the manufacturing of toner cartridges for various printing devices, catering to the office supply and printing industry.

Prior Art: Readers can explore prior patents related to toner development, magnetic brush technology, and printing device components for further research.

Frequently Updated Research: Stay updated on advancements in toner technology, magnetic brush design, and printing industry trends for potential improvements in printing quality and efficiency.

Questions about Two-Component Developer Technology: 1. What are the specific advantages of using an external additive in toner development? 2. How does the resistance value impact the performance of the two-component developer in printing devices?

Original Abstract Submitted

A two-component developer contains a carrier and a toner in which an external additive is attached to a toner particle surface. The external additive contains a fine powder that has an average primary particle diameter of 10 nm to 25 nm and contains aluminum. The two-component developer has an apparent density of 1.7 g/cmto 2.0 g/cmat a toner concentration in of 4% by mass. A resistance value when a voltage of 1,000 V or 600 V is applied to a magnetic brush having a length of 0.1 cm formed by placing the two-component developer having a toner concentration of 4% by mass at a filling rate of 20% between two electrodes disposed parallel to each other at an interval of 0.1 cm in a magnetic field of 200 mT is 1 GΩ or more or 22 GΩ or less, respectively, per square centimeter of the electrodes.