18047321. ELECTROPHOTOGRAPHIC BELT AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)
ELECTROPHOTOGRAPHIC BELT AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS
Organization Name
Inventor(s)
Hiroomi Kojima of Kanagawa (JP)
ELECTROPHOTOGRAPHIC BELT AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18047321 titled 'ELECTROPHOTOGRAPHIC BELT AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS
Simplified Explanation
The abstract describes an electrophotographic belt made of a biaxially stretched cylindrical film. The film consists of crystalline polyester, amorphous polyester, and carbon black. The carbon black content is at least 2.0% by mass. The surface resistivity of the film is measured at 23°C and 50% relative humidity and falls between 1×10 Ω/square and 1×10 Ω/square. The ratio of A/B, where A represents the surface resistivity after 24 hours at 23°C and 50% relative humidity, and B represents the surface resistivity after 24 hours at 30°C and 80% relative humidity, is 3.00 or smaller.
- The electrophotographic belt is made of a biaxially stretched cylindrical film.
- The film contains crystalline polyester, amorphous polyester, and carbon black.
- The carbon black content is at least 2.0% by mass.
- The surface resistivity of the film is measured at 23°C and 50% relative humidity.
- The surface resistivity falls between 1×10 Ω/square and 1×10 Ω/square.
- The ratio of A/B, where A represents the surface resistivity after 24 hours at 23°C and 50% relative humidity, and B represents the surface resistivity after 24 hours at 30°C and 80% relative humidity, is 3.00 or smaller.
Potential Applications
- Electrophotographic printing
- Photocopying
- Laser printing
Problems Solved
- Improved surface resistivity of the electrophotographic belt
- Enhanced stability of the film in different environmental conditions
Benefits
- More reliable and consistent performance of electrophotographic belts
- Reduced risk of damage or malfunction in varying humidity and temperature conditions
- Improved print quality and longevity of electrophotographic prints
Original Abstract Submitted
An electrophotographic belt includes a biaxially stretched cylindrical film as a base layer, wherein the biaxially stretched cylindrical film includes crystalline polyester, amorphous polyester and carbon black, a content of the carbon black with respect to the biaxially stretched cylindrical film is 2.0% by mass or more, and a surface resistivity measured on the surface of the biaxially stretched cylindrical film in an environment of 23° C. and 50% RH is 1×10 Ω/square or higher and 1×10 Ω/square or lower, and A/B is 3.00 or smaller, where A (Q/square) represents a surface resistivity of the biaxially stretched cylindrical film after the film is left to stand for 24 hours in an environment of 23° C. and 50% RH, and B (Ω/square) represents a surface resistivity of the biaxially stretched cylindrical film after the film is left to stand for 24 hours in an environment of 30° C. and 80% RH.
