Bilderzeugungsvorrichtung und Prozesskartusche

Details

Veröffentlichungs-Nr.

EP4800484

Anmeldetag

17. Juli 2025

Veröffentlichung

2. September 2026

Rechtsraum

EP

IPC

G03G5/05, G03G21/00

Abstract

An image forming apparatus includes an electrophotographic photoreceptor that has a photosensitive layer constituting a surface, a charging device that charges the surface of the electrophotographic photoreceptor, an electrostatic charge image forming device that forms an electrostatic charge image on the charged surface of the electrophotographic photoreceptor, a developing device that contains a developer and develops the electrostatic charge image formed on the surface of the electrophotographic photoreceptor by the developer as a toner image, a transfer device that transfers the toner image formed on the surface of the electrophotographic photoreceptor to a surface of a recording medium, and a cleaning device that has a cleaning blade coming into contact with the surface of the electrophotographic photoreceptor and cleaning at least residual toner particles on the surface of the electrophotographic photoreceptor, in which the photosensitive layer in the electrophotographic photoreceptor contains a polyester resin (1) that has a dicarboxylic acid unit (A) represented by Formula (A) and a diol unit (B) represented by Formula (B), and a contact portion of the cleaning blade with the electrophotographic photoreceptor has an impregnated cured layer of a composition that contains an isocyanate compound and at least one polymer selected from the group consisting of a fluorine-based polymer and a silicone-based polymer, <img class="EMIRef" id="0ec9dcc9-e131-4488-b75d-2aa6d3b9d065-ia01" /> <img class="EMIRef" id="0ec9dcc9-e131-4488-b75d-2aa6d3b9d065-ia02" /> in Formula (A), Ar<A1> and Ar<A2> are each independently an aromatic ring that may have a substituent, L<A> is a single bond or a divalent linking group, and n<A1> is 0, 1, or 2, in Formula (B), Ar<B1> and Ar<B2> are each independently an aromatic ring that may have a substituent, L<B> is a single bond, an oxygen atom, a sulfur atom, or -C(Rb<1>)(Rb<2>)-, and n<B1> is 0, 1, or 2, where Rb<1> and Rb<2> are each independently a hydrogen atom, an alkyl group having 1 or more and 20 or less carbon atoms, an aryl group having 6 or more and 12 or less carbon atoms, or an aralkyl group having 7 or more and 20 or less carbon atoms, and Rb<1> and Rb<2> may be bonded to each other to form a cyclic alkyl group.

Anmelder

Firma

FUJIFILM Business Innovation Corp.

Land

🇯🇵 Japan

Fachgebiete