公开(公告)号：US20160209791A1

公开(公告)日：2016-07-21

申请号：US14972591

申请日：2015-12-17

Applicant: KYOCERA Document Solutions Inc.

Inventor： Akihiro KONDO

IPC: G03G15/20

CPC classification number: G03G15/2085 ,  G03G15/2028 ,  G03G15/2032

Abstract: A fixing device (19) includes a fixing member (32), a pressure member (33), a separation member (51) and a separation/contact mechanism (53). The a fixing member (32) and the pressure member (33) are provided so as to separate away from or come in contact with each other and to form a fixing nip (31). The fixing member (32) has a flexibility and is deformable by separating away from or coming in contact with the pressure member (33). The separation member (51) is disposed to face the fixing member (32) and configured to separate a sheet passed through the fixing nip (31) from the fixing member (32). The separation/contact mechanism (53) is configured to support the separation member (51) such that a fixing member side edge portion (51a) of the separation member (51) is deformed along the fixing member (32) in synchronization with the separating and contacting of the fixing member (32) and the pressure member (33).

Abstract translation: 定影装置（19）包括固定构件（32），压力构件（33），分离构件（51）和分离/接触机构（53）。 固定构件（32）和压力构件（33）设置成彼此分开或彼此接触并形成定影夹持部（31）。 固定构件（32）具有柔性并且可通过远离或与压力构件（33）接触而变形。 分离构件（51）设置成面对固定构件（32）并且构造成将通过定影夹持部（31）的片材与固定构件（32）分离。 分离/接触机构（53）构造成支撑分离构件（51），使得分离构件（51）的固定构件侧边缘部分（51a）沿着固定构件（32）与分离 和固定构件（32）与压力构件（33）的接触。

公开(公告)号：US20210389703A1

公开(公告)日：2021-12-16

申请号：US17343608

申请日：2021-06-09

Applicant: KYOCERA Document Solutions Inc.

Inventor： Akihiro KONDO

IPC: G03G15/20

Abstract: A fixing device includes a heated rotational body, a heating unit, a pressing rotational body, a drive unit, a light emitting unit, a light receiving unit, and a drive control part. The heated rotational body has a reflection member. The drive unit rotates the pressing rotational body. The light emitting unit emits infrared light. The light receiving unit receives the infrared light reflected on the reflection member, and receives radiation light of the heated rotational body. The light receiving unit detects a temperature of the heated rotational body based on a receiving of the radiation light. The drive control part obtains a rotational speed of the heated rotational body based on a light receiving period of the infrared light in the light receiving unit and a circumference determined depending on the temperature of the heated rotational body, and controls the drive unit based on the obtained rotational speed.

公开(公告)号：US20210278787A1

公开(公告)日：2021-09-09

申请号：US17193012

申请日：2021-03-05

Applicant: KYOCERA Document Solutions Inc.

Inventor： Akihiro KONDO

IPC: G03G15/20

Abstract: A fixing device is provided with a first rotating member, a second rotating member in contact with the first rotating member, a first drive motor for rotationally driving the first rotating member, a second drive motor for rotationally driving the second rotating member, a torque limiter provided between the second rotating member and the second drive motor, and a pressure adjusting mechanism for adjusting the nip pressure between the first rotating member and the second rotating member. When the nip pressure is greater than the maximum torque that can be transmitted by driving the torque limiter, the second rotating member rotates following the first rotating member and at the same linear speed as that of the first rotating member, and when the nip pressure is equal to or less than the maximum torque, the second rotating member rotates at a linear speed different from that of the first rotating member.

公开(公告)号：US20190171139A1

公开(公告)日：2019-06-06

申请号：US16139328

申请日：2018-09-24

Applicant: KYOCERA Document Solutions Inc.

Inventor： Akihiro KONDO

IPC: G03G15/20 ,  G03G15/16

CPC classification number: G03G15/2053 ,  G03G15/16 ,  G03G15/2064 ,  G03G2215/2032 ,  G03G2215/2041 ,  G03G2215/2045

Abstract: A fixing device includes an elastic fixing roller, an endless belt, a pressing roller and a stretching part. The endless fixing belt is wound around the fixing roller with play. The pressing roller presses the fixing roller via the fixing belt to deform the fixing roller and forms a pressing area between the pressing roller and the fixing belt. A sheet passes through the pressing area. The stretching part is configured to pull the fixing belt in a direction opposite to the pressing roller and to stretch the fixing belt when a conveyance speed of the sheet conveyed to the pressing area is slower than a reference conveyance speed. The stretching part is configured to restrain deformation of the fixing roller to the pressing roller and to shorten length of the pressing area along a conveyance direction of the sheet.

公开(公告)号：US20180275558A1

公开(公告)日：2018-09-27

申请号：US15921814

申请日：2018-03-15

Applicant: KYOCERA Document Solutions Inc.

Inventor： Akihiro KONDO

IPC: G03G15/20

CPC classification number: G03G15/045 ,  G03G15/2025 ,  G03G15/2028 ,  G03G15/2039 ,  G03G15/2053 ,  G03G15/55

Abstract: A fixing device includes a rotatable fixing member, a rotatable pressuring member and an electric charge supplying device. The fixing member contacts a recording medium having a toner image and heats the recording medium. The pressuring member pressures the recording medium between the fixing member and the pressuring member. The electric charge supplying device electrically discharges electric charges with same polarity as toner and supplies the electric charges to the fixing member. An output current value electrically discharged by the electric charge supplying device is adjusted on the basis of a toner charged amount of the toner image. When the toner charged amount is equal to or more than a threshold value, the output current value is set to a normal current value. When the toner charged amount is less than the threshold value, the output current value is set to a current value higher than the normal current value.

公开(公告)号：US20240427268A1

公开(公告)日：2024-12-26

申请号：US18754132

申请日：2024-06-25

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hiroki KAWASAKI ,  Ryohei TOKUNAGA ,  Akihiro KONDO ,  Yuta KITABAYASHI ,  Rina KIKUGAWA ,  Shunsaku FUJII ,  Yuto MASAOKA

IPC: G03G15/20

Abstract: A heater heats a fixing belt in contact with an inner surface of the fixing belt. The fixing belt is formed into a cylindrical shape and rotates around an axis. The heater includes a substrate and a plurality of resistance heat generating elements. The substrate is made of insulator, and elongated in the axial direction. The resistance heat generating elements are arranged on one surface of the substrate facing the inner surface of the fixing belt with gaps in the axial direction, and generate heat by being supplied with power. A relationship between the gap G (mm) and a heat conductivity λ [W/m·K] of the inner surface of the fixing belt satisfies λ≥138G-36.

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：US20220308507A1

公开(公告)日：2022-09-29

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：US20150346657A1

公开(公告)日：2015-12-03

申请号：US14721611

申请日：2015-05-26

Applicant: KYOCERA Document Solutions Inc.

Inventor： Akihiro KONDO

IPC: G03G15/20

CPC classification number: G03G15/2039 ,  G03G15/2053 ,  G03G2215/2035

Abstract: A fixing device includes a first rotatory body, a first heater, a second rotatory body, a temperature detection section, and a determination section. The first heater heats the first rotatory body. The second rotatory body and the first rotatory body provide a fixing nip where a recording medium becomes sandwiched. The temperature detection section detects a temperature change in an end portion of an outer circumferential surface of the first rotatory body. The determination section determines a rotation state of the first rotatory body based on a result of detection by the temperature detection section. The end portion of the first rotatory body has at least one first region and at least one second region that are arranged adjacent to each other in the circumferential direction. The first region has a first thermal conductivity. The second region has a second thermal conductivity that is different from the first thermal conductivity.

Abstract translation: 定影装置包括第一旋转体，第一加热器，第二旋转体，温度检测部和确定部。 第一个加热器加热了第一个旋转体。 第二旋转体和第一旋转体提供夹持记录介质的定影辊隙。 温度检测部检测第一旋转体的外周面的端部的温度变化。 判定部基于温度检测部的检测结果来决定第一旋转体的旋转状态。 第一旋转体的端部具有在圆周方向上彼此相邻布置的至少一个第一区域和至少一个第二区域。 第一区域具有第一导热性。 第二区域具有不同于第一热导率的第二热导率。

公开(公告)号：US20140178113A1

公开(公告)日：2014-06-26

申请号：US14134639

申请日：2013-12-19

Applicant: KYOCERA Document Solutions Inc.

Inventor： Akihiro KONDO

IPC: G03G15/20

CPC classification number: G03G15/2003 ,  G03G15/2053

Abstract: A fixing device includes a fixing belt configured to rotate about a specified rotation axis, and an oblique motion restraint member provided at an outer side of the fixing belt in a direction of the rotation axis and configured to restrain oblique motion of the fixing belt. The oblique motion restraint member includes a contact portion provided to make contact with an end surface of the fixing belt and a breakage-preventing portion provided radially inward of the contact portion and more outward in the direction of the rotation axis than the contact portion. The contact portion bulges in an arcuate cross-sectional shape toward an inner side in the direction of the rotation axis.

Abstract translation: 定影装置包括：围绕特定旋转轴线旋转的定影带;以及倾斜运动限制部件，其沿着旋转轴线的方向设置在定影带的外侧，并且被配置为抑制定影带的倾斜运动。 倾斜运动抑制构件包括设置成与定影带的端面接触的接触部分和设置在接触部分的径向内侧并且沿旋转轴线方向比接触部分更多外侧设置的防破裂部分。 接触部分朝向旋转轴线方向的内侧以弓形横截面形状凸出。