Entwicklungsvorrichtung

Details

Veröffentlichungs-Nr.

EP4715476

Anmeldetag

3. September 2025

Veröffentlichung

25. März 2026

Rechtsraum

EP

IPC

G03G15/08, G03G15/09(ARIIZUMI OSAMU et al.)

Abstract

A developing device includes a first rotatable member, a second rotatable member, a first feeding screw, a second feeding screw, and a guiding portion. In a case where a normal component of magnetic flux density of the second rotatable member is Br, a tangential component of the magnetic flux density is Bθ, and an angle Θ of a magnetic brush is arctan (Br/Bθ), there is a portion where the angle Θ of the magnetic brush is 45° or more in a range from an intersection point where a rectilinear line passing through an end portion of the guiding portion and a rotation center of the second rotatable member crosses an outer peripheral surface of the second rotatable member, to a closest point where the outer peripheral surface of the second rotatable member is closest to the guiding portion.

Anmelder

Firma

Canon Kabushiki Kaisha

Land

🇯🇵 Japan

Fachgebiete