公开(公告)号：US11520261B2

公开(公告)日：2022-12-06

申请号：US17648378

申请日：2022-01-19

Applicant: KYOCERA Document Solutions Inc.

Inventor： Einosuke Kikuchi ,  Kuniaki Nakano

IPC: G03G15/20 ,  G03G15/02 ,  G03G15/00

Abstract: A fixing device includes a fixing member, a pressurizing member, a charging portion, and a control portion. The fixing member rotates while being heated. The pressurizing member forms a nip portion between itself and a surface of the fixing member in such a way as to hold a sheet therebetween and conveys the sheet by rotating together with the fixing member, wherein an image of toner has been formed on the sheet. The charging portion electrically charges the surface of the fixing member to a polarity that is same as a charging polarity of the toner by supplying a charging current to a pair of electrodes that is disposed to face the surface of the fixing member. The control portion acquires sheet information that includes one or more of length information, width information, and thickness information of the sheet and adjusts the charging current based on the sheet information.

公开(公告)号：US20170299989A1

公开(公告)日：2017-10-19

申请号：US15458836

申请日：2017-03-14

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kuniaki Nakano

IPC: G03G15/20 ,  G03G15/02

CPC classification number: G03G15/2017 ,  G03G15/0216 ,  G03G15/0291 ,  G03G15/2053 ,  G03G15/2064 ,  G03G15/657

Abstract: A fixing device includes a first fixing member, a second fixing member, and a charge application portion. The first fixing member contacts unfixed toner on a sheet conveyed along a conveyance path. The second fixing member forms a nip portion between itself and the first fixing member such that the sheet passes through the nip portion. The charge application portion applies an electric charge to the unfixed toner on the sheet and to an outer circumferential surface of the first fixing member at a region on an upstream side of the nip portion in a movement direction of the outer circumferential surface, by causing a corona discharge to be generated between a discharge electrode and a counter electrode that are disposed apart from the outer circumferential surface of the first fixing member.

公开(公告)号：US09229392B2

公开(公告)日：2016-01-05

申请号：US14451927

申请日：2014-08-05

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kuniaki Nakano

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G2215/2035

Abstract: A fixing device includes a fixing belt, a pressuring member, a nip forming member, a supporting member, a heating source, a heat conducting member, and a reflecting member. The pressuring member comes into pressure contact with the fixing belt to form a fixing nip. The nip forming member presses the fixing belt toward the pressuring member. The heat conducting member comes into contact with an inner circumference face of the fixing belt and absorbs a radiant heat emitted from the heating source. The reflecting member includes a reflecting part and a regulating part. The reflecting part reflects the radiant heat emitted to the supporting member toward the heat conducting member. The regulating part is unified with the reflecting part and comes into contact with the inner circumference face of the fixing belt to regulate looseness of the fixing belt.

Abstract translation: 定影装置包括定影带，加压构件，辊隙形成构件，支撑构件，加热源，导热构件和反射构件。 加压构件与定影带压力接触以形成定影辊隙。 辊隙形成构件将定影带朝向加压构件按压。 导热部件与定影带的内周面接触，吸收从加热源发出的辐射热。 反射构件包括反射部和调节部。 反射部反射向支撑构件向着导热构件发射的辐射热。 调节部与反射部一体化，与定影带的内周面接触，调节定影带的松动。