Entwicklungselement, Elektrofotografische Prozesskartusche und Elektrofotografische Bilderzeugungsvorrichtung

Details

Veröffentlichungs-Nr.

EP3660591

Aktenzeichen

EP19212490

Anmeldetag

29. November 2019

Veröffentlichung

21. Juli 2021

Erteilung

21. Juli 2021

Rechtsraum

EP

IPC

G03G15/08

Abstract

Provided is a developing member capable of sufficiently securing a toner conveyance amount, thereby being capable of suppressing a reduction in image density, even when a solid black image or an image having a high print percentage is continuously output. The developing member includes an electro-conductive substrate and an electro-conductive layer thereon, an outer surface of the developing member includes a first, second and third regions, when surface potentials of the respective regions with scanning probe microscope, and measured surface potential of the respective regions are defined as V1, V2, and V3, respectively, V1 is -0.70 V to -0.50 V, 1.30≤V1/V2≤25.00, and V3 is 0.00 V to 0.50 V.

Anmelder

Firma

CANON KABUSHIKI KAISHA

Land

🇯🇵 Japan

Fachgebiete