公开(公告)号：US20190056684A1

公开(公告)日：2019-02-21

申请号：US16101111

申请日：2018-08-10

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takashi EIKI ,  Hiroki KAWASAKI ,  Ryohei TOKUNAGA ,  Atsushi KOHAMA ,  Yuhiro SAKAI ,  Kotatsu KAWAGUCHI

IPC: G03G15/20 ,  G03G15/06 ,  G03G15/00

Abstract: The fixing device includes a fixing member, a pressing member, and a heat source. The fixing member heats toner on a medium. The pressing member forms a pressing area with the fixing member and presses the toner. The heat source is provided corresponding to the pressing area across the fixing member and heats the fixing member. The heat source includes a heat insulation layer and a heating and contacting part. The heat insulation layer is laminated on a base material and has a convex part that protrudes toward the fixing member. The heating and contacting part is laminated on the heat insulation layer that has the convex part and contacts to an inner surface of the fixing member so as to heat the fixing member. The convex part protrudes the heating and contacting part laminated thereon toward the fixing member so as to maximize pressure in the pressing area.

公开(公告)号：US20240004331A1

公开(公告)日：2024-01-04

申请号：US18343451

申请日：2023-06-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yuhiro SAKAI ,  Masakazu UEHARA ,  Hironori TAKAHASHI ,  Tomohiro WATATANI ,  Shota ONISHI

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G2215/2016

Abstract: A fixing device according to the present disclosure includes a rotatable endless belt and an end portion holder. The end portion holder supports each of end portions of the fixing belt rotatably, and has a cylindrical part along which an inner circumferential surface of the fixing belt slides and an end wall part which faces an end surface of the fixing belt. The end wall part has a restraint part which faces an outer circumferential surface of the fixing belt with a predetermined interval and restrains the fixing belt from turning up.

公开(公告)号：US20220350282A1

公开(公告)日：2022-11-03

申请号：US17753285

申请日：2020-08-24

Applicant: KYOCERA Document Solutions Inc.

Inventor： Fumito NAKAMOTO ,  Masakazu UEHARA ,  Hironori TAKAHASHI ,  Tomohiro WATATANI ,  Yuhiro SAKAI

IPC: G03G15/20

Abstract: A fixing device (50) includes a fixing belt (70), a pressure member (80), and a heating section (90). The heating section (90) faces an inner peripheral surface of the fixing belt (70). The heating section (90) includes a heater (HT), a first heat sensitive body (SM11), and a second heat sensitive body (SM21). The second heat sensitive body (SM21) differs from the first heat sensitive body (SM11). The heater (HT) has a first heater portion (AE1). The first heater portion (AE1) is one end portion of a pair of end portions of the heater (HT) in a longitudinal direction thereof. The first heat sensitive body (SM11) and the second heat sensitive body (SM21) face the first heater portion (AE1) and are aligned in a conveyance direction (DC) of a sheet (S).

公开(公告)号：US20200019098A1

公开(公告)日：2020-01-16

申请号：US16509214

申请日：2019-07-11

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takashi EIKI ,  Hiroki KAWASAKI ,  Atsushi KOHAMA ,  Yuhiro SAKAI

IPC: G03G15/20 ,  G03G15/16

Abstract: A fixing device includes a cylindrical rotatable fixing belt, a flat heater, a heater holding part, a pressuring member, and a connector. In the flat heater, an electrode part, a feeder and a heat generating part are formed in the same face state. The heater holding part holds the flat heater so that the heat generating part faces to an inner circumference face of the fixing belt. The pressuring member sandwiches the fixing belt with the flat heater. The connector has a contacting portion coming into contact with the electrode part. The feeder has a portion arranged at a near side from the electrode part in an attaching direction of the connector. The heater holding part includes a protecting portion covering the portion of the feeder arranged at the near side from the electrode part.

公开(公告)号：US20230130258A1

公开(公告)日：2023-04-27

申请号：US18049950

申请日：2022-10-26

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tomohiro WATATANI ,  Yuhiro SAKAI

IPC: G03G15/20

Abstract: A fixing device includes a fixing belt, a pressing roller, a flat heater, a heater holder and a pair of mounting members. The flat heater has a first surface coming into contact with an inner circumferential surface of the fixing belt and a second surface opposite to the first surface. The heater holder comes into contact with the second surface of the flat heater. The mounting members comes into contact with both end portions of the first surface of the flat heater in the width direction, and are mounted to the heater holder such that the flat heater is held between the mounting members and the heater holder. The mounting member includes a downstream side end surface contact part which comes into contact with a downstream side end surface of the flat heater in the conveying direction.

公开(公告)号：US20230034177A1

公开(公告)日：2023-02-02

申请号：US17759002

申请日：2021-01-15

Applicant: KYOCERA Document Solutions Inc.

Inventor： Atsushi KOHAMA ,  Yuhiro SAKAI

IPC: G03G15/20

Abstract: A fixing device includes a fixing belt, a pressing roller and a heating part. The heating part includes a heater, a plurality of temperature sensors, a heater holding member and a sensor holding member. The sensor holding member holds the temperature sensors between the heater holding member and the sensor holding member. The heater holding member has observation holes through which the heater is exposed. The heater holding member has a guide part which positions the sensor holding member with respect to the heater holding member. The sensor holding member has an engagement part engaged with the guide part. The sensor holding member holds each of the temperature sensors at a position corresponding to each of the observation holes by engagement of the engagement part with the guide part.

公开(公告)号：US20200379388A1

公开(公告)日：2020-12-03

申请号：US16887278

申请日：2020-05-29

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hironori TAKAHASHI ,  Masakazu UEHARA ,  Tomohiro WATATANI ,  Yuhiro SAKAI ,  Fumito NAKAMOTO

IPC: G03G15/20

Abstract: A fixing device includes a fixing belt, a pressure member, a first holding member, and a second holding member. The fixing belt is endless and includes a first rim and a second rim. The pressure member presses the fixing belt by being in contact with an outer circumferential surface of the fixing belt and rotates about a rotation axis of the pressure member. The first holding member is attached to the fixing belt and holds the first rim of the fixing belt. The second holding member is attached to the fixing belt and holds the second rim of the fixing belt. The second holding member includes a base portion, a main portion, and a protrusion. The main portion protrudes from the base portion. The protrusion protrudes from the main portion in a direction away from the base portion.

公开(公告)号：US20220317607A1

公开(公告)日：2022-10-06

申请号：US17704668

申请日：2022-03-25

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tomohiro WATATANI ,  Yuhiro SAKAI ,  Takashi EIKI ,  Ryohei TOKUNAGA ,  Akihiro KONDO ,  Yuta KITABAYASHI ,  Rina KIKUGAWA ,  Hiroki KAWASAKI ,  Shunsaku FUJII ,  Tei TO

IPC: G03G15/20 ,  G03G15/00

Abstract: A temperature detection section is disposed opposite to a heater so as to be out of contact with the heater, and detects a temperature of the heating element. A spacer is disposed so that the heater and the temperature detection section are out of contact with each other. The spacer includes a separator that separates the temperature detection section from the heater and that has a gap through which the heat is transferred from the heater to the temperature detection section and that melts upon the temperature of the heating element increasing to a specific temperature or higher. The separator after melting fills the gap.

公开(公告)号：US20210341861A1

公开(公告)日：2021-11-04

申请号：US17244270

申请日：2021-04-29

Applicant: KYOCERA Document Solutions Inc.

Inventor： Masakazu UEHARA ,  Tomohiro WATATANI ,  Yuhiro SAKAI ,  Fumito NAKAMOTO

IPC: G03G15/20

Abstract: A heater holding member circulatably guides a fixing belt and holds a heater that heats the fixing belt. A stay sheet metal reinforces the heater holding member. The heater holding member has a base plate and side walls. The stay sheet metal is placed on the base plate. A side wall is erected on either side of the base plate in a short direction thereof. A pocket which keeps the stay sheet metal is formed in each side wall. The stay sheet metal has a top plate and side plates. A side plate bends and extends from either edge of the top plate in a short direction thereof. A slit is formed in each side plate such that the side plates are kept in the pockets of the heater holding member.

公开(公告)号：US20210216029A1

公开(公告)日：2021-07-15

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

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.