Title:
画像形成装置
Document Type and Number:
Japanese Patent JP7447638
Kind Code:
B2
Abstract:
To provide an image forming apparatus that can accurately obtain the surface potential of an image carrier without using an expensive sensor such as a surface potential sensor.SOLUTION: An image forming apparatus comprises: a developing device 64Y that develops an electrostatic latent image formed on a photoreceptor drum 65 to form a toner image; an electrifying device 63 that electrifies the photoreceptor drum; a developing power supply 648 that applies a predetermined bias voltage to the developing device; a current measuring unit 646 that measures a developing current flowing in the developing device; a prediction unit that predicts a predicted surface potential of the photoreceptor drum; and a calculation unit 647 that calculates an actual surface potential of the photoreceptor drum on the basis of the developing current. The electrifying device applies an electrifying bias based on the predicted surface potential to the photoreceptor drum. The calculation unit calculates the actual surface potential of the photoreceptor drum on the basis of a variation in the electrifying bias.SELECTED DRAWING: Figure 2
Inventors:
Tamotsu Shimizu
Yoshihiro Yamagishi
Kazunori Tanaka
Yoshihiro Yamagishi
Kazunori Tanaka
Application Number:
JP2020066113A
Publication Date:
March 12, 2024
Filing Date:
April 01, 2020
Export Citation:
Assignee:
Kyocera Document Solutions Inc.
International Classes:
G03G21/00; G03G15/02; G03G15/06
Domestic Patent References:
| JP2012013881A | ||||
| JP2003295540A | ||||
| JP2015094858A |
Attorney, Agent or Firm:
Hiroyuki Maei