Bilderzeugungsvorrichtung

Details

Veröffentlichungs-Nr.

EP3264190

Aktenzeichen

EP17175181

Anmeldetag

9. Juni 2017

Veröffentlichung

8. Mai 2019

Erteilung

8. Mai 2019

Rechtsraum

EP

IPC

G03G15/06G03G15/00G03G15/01G03G15/043G03G21/20

Abstract

To provide an image formation device (1) in which life determination is performed according to a relationship between a development unit (10) and a photoreceptor (7) or in which life management is performed based on a parameter directly linked to the film thickness of the photoreceptor (7), so that life expiration can be determined after the potential life of a consumable has been used up. The image formation device (1) including a photoreceptor (7) configured to carry a toner image and a replaceable development unit (10) configured to form the toner image on a surface of the photoreceptor (7), includes: a development bias application section (18) configured to apply a development bias to between the photoreceptor (7) and the developer (10); a stabilization control section configured to perform image stabilization control of determining a development bias value to be used in future by changing the development bias while measuring a density of the toner image formed by the developer (10), thereby obtaining the toner image with a target density; and a life determination section configured to determine expiration of use of the development unit (10) when the development bias value determined by the stabilization control falls outside a preset acceptable range.

Anmelder

Firma

Konica Minolta, Inc.

Land

🇯🇵 Japan

Fachgebiete