公开(公告)号：US12013654B2

公开(公告)日：2024-06-18

申请号：US18059741

申请日：2022-11-29

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hiroki Kawasaki ,  Takashi Eiki ,  Ryohei Tokunaga ,  Yuta Kitabayashi ,  Rina Kikugawa ,  Shunsaku Fujii ,  Tei To

IPC: G03G15/20

CPC classification number: G03G15/2053

Abstract: A fixing device includes a first fixing member, a second fixing member, a pressing member, and a heating device. The first fixing member is in an ungrounded state and comes into contact with a toner image on a sheet. The second fixing member is arranged opposite the first fixing member. The pressing member presses the first fixing member against the second fixing member so as to form, at the contact portion between the first fixing member and the second fixing member, a nip portion through which the sheet passes. The heating device heats the first fixing member.

公开(公告)号：US20200278630A1

公开(公告)日：2020-09-03

申请号：US16803821

申请日：2020-02-27

Applicant: KYOCERA Document Solutions Inc.

Inventor： Sara Fujikawa ,  Hiroki Kawasaki

IPC: G03G15/20

Abstract: A fixing device includes a fixing belt, a pressure roller, and a plurality of heaters. The pressure roller is provided in contact with an outer peripheral surface of the fixing belt. The plurality of heaters are each flat-plate and arranged in line along a running direction of the fixing belt to be pressed against an inner peripheral surface of the fixing belt, and the flat-plate heaters are arranged in a positional relation where a peak of a nip pressure of a nip region is downstream of a center of the nip region in the running direction of the fixing belt, the nip region being a region where the fixing belt and the pressure roller are in contact with each other.

公开(公告)号：US11644772B2

公开(公告)日：2023-05-09

申请号：US17680755

申请日：2022-02-25

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takashi Eiki ,  Akihiro Kondo ,  Ryohei Tokunaga ,  Yuta Kitabayashi ,  Hiroki Kawasaki ,  Shunsaku Fujii ,  Tei To ,  Rina Kikugawa

IPC: G03G15/20 ,  G03G15/00

CPC classification number: G03G15/205 ,  G03G15/2064 ,  G03G15/5045

Abstract: A duration measuring section measures a plurality of times. A temperature measuring section measures a temperature of a heater at each of the times. A temperature information outputting section outputs heater temperature information. A temperature tendency computing section outputs temperature tendency information of the heater. A drive controller outputs linear velocity information for controlling the linear velocity of a pressure roller. A pressure roller drive section drives the pressure roller.

公开(公告)号：US20240393719A1

公开(公告)日：2024-11-28

申请号：US18674192

申请日：2024-05-24

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yuta Kitabayashi ,  Ryohei Tokunaga ,  Hiroki Kawasaki ,  Shunsaku Fujii ,  Rina Kikugawa ,  Akihiro Kondo ,  Yuto Masaoka ,  Tomohiro Watatani

IPC: G03G15/20

Abstract: In a fixing device, a heater heats an endless rotatable fixing belt. A retention member includes a groove for retaining a lubricant and retains the heater such that a surface on a front side comes into contact with an inner circumferential surface of the fixing belt via the lubricant. A pressure member is pressed against the heater while the fixing belt is interposed therebetween and forms, with the fixing belt, a pressure region for heating and pressurizing a paper sheet onto which a toner image has been transferred. A guide guides the paper sheet to the pressure region. The guide causes the paper sheet to come into contact with the fixing belt at a position more on a downstream side of a rotation direction of the fixing belt than the groove, to guide the paper sheet to the pressure region.

公开(公告)号：US20240361716A1

公开(公告)日：2024-10-31

申请号：US18648284

申请日：2024-04-26

Applicant: KYOCERA Document Solutions Inc.

Inventor： Rina Kikugawa ,  Ryohei Tokunaga ,  Akihiro Kondo ,  Yuta Kitabayashi ,  Hiroki Kawasaki ,  Shunsaku Fujii ,  Yuto Masaoka

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2064 ,  G03G2215/2035

Abstract: The fixing device includes: a rotatable endless fixing belt; a heater that heats the fixing belt; a holding member that holds the heater so that a front surface thereof is in contact with an inner peripheral surface of the fixing belt; and a pressure member that is pressed against the heater with the fixing belt therebetween and to form a pressure area between the pressure member and the fixing belt where a sheet to which a toner image has been transferred is heated and pressed. A uniform heating layer is formed on a rear side of the heater without any gaps.

公开(公告)号：US11137705B2

公开(公告)日：2021-10-05

申请号：US17145260

申请日：2021-01-08

Applicant: KYOCERA Document Solutions Inc.

Inventor： Shunsaku Fujii ,  Takashi Eiki ,  Hiroki Kawasaki ,  Ryohei Tokunaga ,  Rina Kikukawa ,  Sadanori Nakae ,  Kotatsu Kawaguchi ,  Yuta Kitabayashi ,  Sara Fujikawa ,  Atsushi Kohama ,  Yuhiro Sakai

IPC: G03G15/20 ,  G03G21/16

Abstract: The fixing device includes a cylindrical heated member and a heating part. The cylindrical heated member is long in a width direction of a sheet, and is supported in a rotatable manner with coming into contact with a fixing face of the sheet. The heating part is provided in an inner space of the heated member and heating an inner circumferential face of the heated member. The heating part includes a plurality of heaters disposed side by side in a longitudinal direction of the heated member; and a first temperature sensor measuring a first heater of the plurality of heaters or a heated area of the heated member heated by the first heater. The plurality of heaters and the first temperature sensor are connected in series by a first power supply line.

公开(公告)号：US10386762B2

公开(公告)日：2019-08-20

申请号：US16101395

申请日：2018-08-11

Applicant: KYOCERA Document Solutions Inc. ,  KYOCERA Corporation

Inventor： Takashi Eiki ,  Hiroki Kawasaki ,  Ryohei Tokunaga ,  Atsushi Kohama ,  Yuhiro Sakai ,  Kotatsu Kawaguchi ,  Hidenobu Nakagawa

IPC: G03G15/20 ,  G03G15/08 ,  G03G15/16

Abstract: A heating unit includes a circuit board, heating parts, and electrode parts. The heating parts are arranged in a first direction on a surface of the circuit board. The electrode parts are disposed on the surface of the circuit board, and electrically connected to both sides of the heating parts in a second direction that is orthogonal to the first direction. Each of the heating parts includes a plurality of heating resistors that is arranged in the first direction. Each of the heating resistors has a size ratio of a first length in the second direction to a second length in the first direction is 1 or more and 100 or less.

公开(公告)号：US11768455B2

公开(公告)日：2023-09-26

申请号：US17704207

申请日：2022-03-25

Applicant: KYOCERA Document Solutions Inc.

Inventor： Rina Kikugawa ,  Takashi Eiki ,  Akihiro Kondo ,  Ryohei Tokunaga ,  Yuta Kitabayashi ,  Hiroki Kawasaki ,  Shunsaku Fujii ,  Tei To

IPC: G03G15/20 ,  H05B3/00

CPC classification number: G03G15/2053 ,  H05B3/0095

Abstract: A heater includes electrodes and heating element pieces. The electrodes energize the heating element pieces with electricity. The heating element pieces are connected to the electrodes and arranged through a gap portion in the heater in a main scanning direction. A ratio of a second surface area of the gap portion to a first surface area of the heating element pieces is 0

公开(公告)号：US11614701B2

公开(公告)日：2023-03-28

申请号：US17656402

申请日：2022-03-24

Applicant: KYOCERA Document Solutions Inc.

Inventor： Akihiro Kondo ,  Takashi Eiki ,  Ryohei Tokunaga ,  Yuta Kitabayashi ,  Rina Kikugawa ,  Hiroki Kawasaki ,  Shunsaku Fujii ,  Tei To

IPC: G03G15/20 ,  H04N1/00

Abstract: A fixing belt heats and fixes a toner image. A pressure roller rotates the fixing belt while in contact with the fixing belt. A heater heats the fixing belt. A lubricating oil forms an oil film between the heater and an inner peripheral surface of the fixing belt. A pressure roller driver rotates the pressure roller so that the lubricating oil causes the fixing belt to be out of contact with the heater.

公开(公告)号：US10768561B2

公开(公告)日：2020-09-08

申请号：US16509737

申请日：2019-07-12

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takashi Eiki ,  Hiroki Kawasaki ,  Atsushi Kohama ,  Yuhiro Sakai

IPC: G03G15/20 ,  G03G15/00

Abstract: A fixing device includes a cylindrical rotatable fixing belt, a flat heater, a safety device, a heater holding part and a pressuring member. The flat heater has a plurality of heat generating parts. The safety device is arranged across two adjacent heat generating parts to interrupt power supply to the heat generating parts in a case where temperature reaches a threshold value. The heater holding part holds the flat heater so that the flat heater comes into contact with an inner circumference face of the fixing belt. The pressuring member sandwiches the fixing belt with the flat heater to form a pressuring area for sandwiching and conveying a sheet between the fixing belt and the pressuring roller.