公开(公告)号：US20240353783A1

公开(公告)日：2024-10-24

申请号：US18639257

申请日：2024-04-18

Applicant: KYOCERA Document Solutions Inc.

Inventor： Ayato MORIKAMI ,  Yasuaki SAKAMOTO ,  Masaru WATANABE ,  Yukiko KOTANI ,  Atsuki ITO ,  Makoto MATSUMOTO

IPC: G03G15/00 ,  G03G15/043 ,  G03G15/06

CPC classification number: G03G15/5041 ,  G03G15/043 ,  G03G15/065 ,  G03G15/5045 ,  G03G15/5062 ,  G03G15/55 ,  G03G2215/00042 ,  G03G2215/00084 ,  G03G2215/047

Abstract: An image forming apparatus includes an image forming portion, an exposure device, an image density sensor, and a control portion. The control portion can, by adjusting the development voltage based on the image density of a reference image and the amount of exposure from the exposure device, perform image density correction to adjust the image density. The control portion predicts the toner charge amount based on a formation condition of the reference image and the image density of the reference image and determines the timing of performing the image density correction next time based on the rate of change of the toner charge amount calculated using a first toner charge amount predicted when the image density correction was performed last time, a second toner charge amount predicted when the image density correction is performed this time, and the interval between the image density correction performed last time and this time.