17985240. IMAGE FORMING APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)

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IMAGE FORMING APPARATUS

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

Shunsuke Matsushita of Kanagawa (JP)

Taichi Sato of Kanagawa (JP)

Nobuo Oshima of Tokyo (JP)

IMAGE FORMING APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 17985240 titled 'IMAGE FORMING APPARATUS

Simplified Explanation

The abstract describes an image forming apparatus that includes various components such as an image bearing member, a charging member, a developing member, a transfer portion, a static eliminating portion, and a collecting member. These components work together to form an image on a surface.

  • The image forming apparatus has a specific configuration in terms of the widths of the eliminating portion, charging member, and collecting member.
  • The eliminating portion discharges the surface of the image bearing member within a certain width (A).
  • The charging member charges the surface of the image bearing member within a certain width (B).
  • The collecting member contacts the surface of the image bearing member within a certain width (C).
  • The formula A < B < C is satisfied, indicating the specific relationship between the widths of these components.

Potential applications of this technology:

  • This image forming apparatus can be used in various printing devices such as laser printers, photocopiers, and multifunction printers.
  • It can be applied in both personal and professional settings where high-quality image printing is required.

Problems solved by this technology:

  • The specific configuration of the apparatus ensures effective charging, eliminating, and collecting of toner, resulting in improved image quality and reduced image defects.
  • It prevents potential issues such as toner scattering, uneven charging, and poor image transfer.

Benefits of this technology:

  • Improved image quality: The apparatus ensures proper charging and eliminating of toner, resulting in sharper and more accurate images.
  • Reduced image defects: By maintaining the correct widths of the eliminating, charging, and collecting components, the apparatus minimizes toner scattering and other image defects.
  • Enhanced reliability: The specific configuration of the apparatus ensures consistent and reliable performance, leading to increased overall reliability of the image forming process.


Original Abstract Submitted

An image forming apparatus includes a rotatable image bearing member about a rotational axis extending in the axial direction, a charging member, an accommodating portion accommodating toner charged to a predetermined polarity; a developing member, a transfer portion, a static eliminating portion, and a collecting member. In the axial direction, when A is a eliminating width with which the eliminating portion discharges the surface of the image bearing member, B is an effective charging width with which the charging member charges the surface, and C is a collection contacting width with which the collecting member contacts the surface, the formula A < B < C is satisfied. In the axial direction, a surface potential of the surface in an area outside the effective charging width, inside the collection contacting width and in contact with the collecting member is a first potential larger than 0 V in the same polarity direction as the predetermined polarity.