18612419. IMAGE FORMING APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)

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IMAGE FORMING APPARATUS

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

HIROKI Tanaka of Kanagawa (JP)

NAOYA Sawamura of Kanagawa (JP)

AKIHISA Matsukawa of Tokyo (JP)

IMAGE FORMING APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18612419 titled 'IMAGE FORMING APPARATUS

The image forming apparatus described in the patent application includes various components such as a photosensitive drum, charging members, a development member, and charging voltage applying units.

  • The photosensitive drum has a surface layer with a specific volume resistivity range.
  • The second charging voltage applying unit applies a voltage to the second charging member.
  • The second charging voltage is applied to maintain a specific potential difference between the charging member and the surface of the photosensitive drum.

Key Features and Innovation:

  • Photosensitive drum with a specific volume resistivity range for improved performance.
  • Second charging voltage application for maintaining a specific potential difference.

Potential Applications:

  • Printing technology
  • Photocopying machines
  • Scanners

Problems Solved:

  • Ensures proper charging of the photosensitive drum
  • Improves image quality and consistency

Benefits:

  • Enhanced image quality
  • Increased reliability and longevity of the apparatus

Commercial Applications:

  • Printing industry
  • Office equipment manufacturers

Questions about the technology: 1. How does the specific volume resistivity range of the surface layer impact the performance of the photosensitive drum? 2. What are the potential implications of maintaining a specific potential difference between the charging member and the surface of the photosensitive drum?

Frequently Updated Research: Research on improving the efficiency and durability of photosensitive drums in image forming apparatus.


Original Abstract Submitted

An image forming apparatus includes a photosensitive drum, first and second charging members, a development member, and first and second charging voltage applying units. The photosensitive drum includes a surface layer constituting a surface of the photosensitive drum. The second charging voltage applying unit applies a second charging voltage to the second charging member. The surface layer of the photosensitive drum has a volume resistivity of 1.0×109 ohm centimeters (Ω·cm) or more and 1.0×1014 Ω·cm or less. The second charging voltage applying unit applies the second charging voltage such that a second potential difference formed between the second charging member and the surface of the photosensitive drum charged by the first charging member is equal to or higher than a discharge starting voltage.