公开(公告)号：US20190377282A1

公开(公告)日：2019-12-12

申请号：US16393584

申请日：2019-04-24

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hiroka ITANI ,  Keigo KIMURA

IPC: G03G15/16 ,  G03G15/00 ,  G03G21/00

Abstract: An image forming apparatus has a plurality of image forming portions, an intermediate transfer belt having an elastic layer, a plurality of primary transfer members, a contact-separation mechanism, a secondary transfer member, a driving device, a voltage applying device, and a control portion. The contact-separation mechanism is switchable between an all-color pressure state where the primary transfer members are all in pressed contact with the image carrying members via the intermediate transfer belt and an all-color apart state where the primary transfer members are all away from the intermediate transfer belt. At first power-on, the control portion starts driving the image carrying members and the intermediate transfer belt in the all-color apart state, then transits to the all-color pressure state, and then ejects toner from the developing device to the image carrying members to reduce the surface friction coefficient on the image carrying members and the intermediate transfer belt.

公开(公告)号：US20190079450A1

公开(公告)日：2019-03-14

申请号：US16117006

申请日：2018-08-30

Applicant: KYOCERA Document Solutions Inc.

Inventor： Keigo KIMURA ,  Hiroka ITANI ,  Yoshiyuki ODAKA ,  Hiroaki WATANABE

IPC: G03G21/20 ,  G03G15/04 ,  G03G15/043

CPC classification number: G03G21/203 ,  G03G15/04036 ,  G03G15/043

Abstract: An image forming apparatus includes a photoreceptor and an exposure device. The exposure device is configured to expose a surface of the photoreceptor and to form an electrostatic latent image. The exposure device includes a light source, a polygon mirror and a polygon motor. The light source is configured to emit a beam. The polygon mirror is configured to deflect the beam emitted from the light source. The polygon motor is configured to rotate the polygon mirror. The polygon motor is rotated at least temporarily when an aging mode to remove moisture from the surface of the photoreceptor is executed.