18388309. DEVELOPING DEVICE simplified abstract (CANON KABUSHIKI KAISHA)

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DEVELOPING DEVICE

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

Chihiro Tanaka of Chiba (JP)

DEVELOPING DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18388309 titled 'DEVELOPING DEVICE

Simplified Explanation

The patent application describes a developing device with a unique magnetic structure for improved performance.

  • Developing device includes a developing container, developing roller, supplying roller, first magnet with a first magnetic pole, and second magnet with second to fifth magnetic poles.
  • Second magnetic pole has higher maximum magnetic flux density than third magnetic pole in normal direction to supplying roller.
  • Third magnetic pole has higher maximum magnetic flux density than fourth magnetic pole in normal direction.
  • Angle between maximum magnetic flux density positions of second and third magnetic poles is smaller than angle between third and fourth magnetic poles in rotational direction of supplying roller.
      1. Potential Applications
  • Printing industry for high-quality image development.
  • Photocopiers for efficient toner application.
      1. Problems Solved
  • Improved image quality due to precise magnetic flux density control.
  • Enhanced toner application accuracy.
      1. Benefits
  • Consistent and high-quality image development.
  • Efficient toner usage leading to cost savings.


Original Abstract Submitted

A developing device includes a developing container, a developing roller, a supplying roller, a first magnet including a first magnetic pole, a second magnet including second to fifth magnetic poles, and a regulating member. A maximum magnetic flux density of the second magnetic pole is larger in absolute value than a maximum magnetic flux density of the third magnetic pole in a normal direction to the supplying roller, and a maximum magnetic flux density of the third magnetic pole is larger in absolute value than a maximum magnetic flux density of the fourth magnetic pole in the normal direction. With respect to a rotational direction of the supplying roller, an angle between maximum magnetic flux density positions of the second and third magnetic poles is smaller than an angle between maximum magnetic flux density positions of the third and fourth magnetic poles.