公开(公告)号：US10281862B2

公开(公告)日：2019-05-07

申请号：US15915098

申请日：2018-03-08

申请人： Shinji Aoki ,  Kei Hasegawa ,  Shintaro Yamada ,  Rie Mitani ,  Yohsuke Terada

发明人： Shinji Aoki ,  Kei Hasegawa ,  Shintaro Yamada ,  Rie Mitani ,  Yohsuke Terada

IPC分类号： G03G15/00

摘要： An image forming apparatus includes a latent image bearer to bear a plurality of halftone images having a same image density and a high-density image located one cycle downstream of the latent image bearer from at least one of the plurality of halftone images, a transferor to apply a predetermined transfer voltage to transfer the plurality of halftone images and the high-density image, a transfer electric field forming target to bear the plurality of halftone images and the high-density image transferred from the latent image bearer, a detector to detect image densities of the plurality of halftone images on the transfer electric field forming target, and a controller to determine a primary transfer voltage applied at a time of image formation, based on image density variations of the plurality of halftone images detected by the detector.

公开(公告)号：US20180267452A1

公开(公告)日：2018-09-20

申请号：US15915098

申请日：2018-03-08

申请人： Shinji AOKI ,  Kei HASEGAWA ,  Shintaro YAMADA ,  Rie MITANI ,  Yohsuke TERADA

发明人： Shinji AOKI ,  Kei HASEGAWA ,  Shintaro YAMADA ,  Rie MITANI ,  Yohsuke TERADA

IPC分类号： G03G15/16

CPC分类号： G03G15/5062 ,  G03G15/5058 ,  G03G2215/00037 ,  G03G2215/00063

摘要： An image forming apparatus includes a latent image bearer to bear a plurality of halftone images having a same image density and a high-density image located one cycle downstream of the latent image bearer from at least one of the plurality of halftone images, a transferor to apply a predetermined transfer voltage to transfer the plurality of halftone images and the high-density image, a transfer electric field forming target to bear the plurality of halftone images and the high-density image transferred from the latent image bearer, a detector to detect image densities of the plurality of halftone images on the transfer electric field forming target, and a controller to determine a primary transfer voltage applied at a time of image formation, based on image density variations of the plurality of halftone images detected by the detector.