18587002. ELECTROPHOTOGRAPHIC ROLLER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)
Contents
ELECTROPHOTOGRAPHIC ROLLER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS
Organization Name
Inventor(s)
ATSUSHI Noguchi of Shizuoka (JP)
MINORU Nakamura of Shizuoka (JP)
YOSHITAKA Suzumura of Shizuoka (JP)
ELECTROPHOTOGRAPHIC ROLLER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18587002 titled 'ELECTROPHOTOGRAPHIC ROLLER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS
Simplified Explanation: The patent application describes an electrophotographic roller with a conductive outer surface and a resin layer made of polyurethane with a polycarbonate structure. The roller has specific electrical properties and can withstand certain voltage levels when subjected to a corona discharger.
- The electrophotographic roller has a resin layer made of polyurethane with a polycarbonate structure.
- The roller has a high impedance at a specific frequency and can withstand a specific AC voltage.
- When a corona discharger is moved along the roller, the electric potential on the surface remains below a certain threshold.
Potential Applications: 1. Photocopiers and laser printers 2. Digital printing presses 3. Fax machines
Problems Solved: 1. Ensures stable performance of electrophotographic rollers 2. Prevents electrical damage during operation 3. Improves overall print quality
Benefits: 1. Enhanced durability and longevity of electrophotographic rollers 2. Consistent and reliable printing results 3. Reduced maintenance and repair costs
Commercial Applications: The technology can be used in the manufacturing of electrophotographic rollers for various printing devices, leading to improved performance and longevity. This innovation could attract manufacturers looking to enhance the quality and reliability of their printing equipment.
Questions about Electrophotographic Rollers: 1. How does the polyurethane resin layer improve the performance of the electrophotographic roller? 2. What are the specific advantages of using a polycarbonate structure in the resin layer of the roller?
Original Abstract Submitted
An electrophotographic roller comprising a substrate comprising a conductive outer surface and a resin layer on the outer surface of the substrate, wherein the resin layer comprises a polyurethane having a polycarbonate structure, an impedance at a frequency of 1.0×10to 1.0×10Hz is 1.00×10Ω or more when a specific AC voltage is applied to the outer surface of the electrophotographic roller while a frequency is changed between specific range, and when a corona discharger having a grid part is moved along an axial direction of the electrophotographic roller at a speed of 400 mm/sec, a maximum value of an electric potential of the outer surface is less than 20.0 V when measured at 0.06 seconds after a passage of the grid part.
