公开(公告)号：US20240288810A1

公开(公告)日：2024-08-29

申请号：US18586955

申请日：2024-02-26

Applicant: KYOCERA Document Solutions Inc.

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

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2064

Abstract: A fixing device includes a fixing belt formed in a cylindrical shape, with a lubricant applied to an inner circumferential surface, and set such that a circumferential surface rotates in a circumferential direction, a heater retention member that retains the heater, inside of the fixing belt, and a pressure member that defines a nip region, through which a recording medium is transported in a nipped state, between the pressure member and a portion of the fixing belt heated from inside by the heater, and drives the fixing belt to rotate. The heater retention member includes a first opposing face extending in a rotation axis direction of the fixing belt, and opposed to the inner circumferential surface of the fixing belt. The first opposing face includes slits aligned in the rotation axis direction of the fixing belt, and a lubricant is applied in advance inside the slits.

公开(公告)号：US20220317606A1

公开(公告)日：2022-10-06

申请号：US17704506

申请日：2022-03-25

Applicant: KYOCERA Document Solutions Inc.

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

IPC: G03G15/20

Abstract: A fixing belt heats and fixes a toner image formed on a sheet. A plurality of heating element pieces is arranged on an opposing surface of a heater in a main scanning direction. The opposing surface faces the sheet. A heat capacity of the fixing belt and a clearance, in the main scanning direction, of a gap portion between the heating element pieces adjacent to each other have a relationship expressed as follows: (the heat capacity (J/K) of the fixing belt)≥(24×(the clearance (mm))−9).

公开(公告)号：US20220317605A1

公开(公告)日：2022-10-06

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

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：US20220317604A1

公开(公告)日：2022-10-06

申请号：US17656552

申请日：2022-03-25

Applicant: KYOCERA Document Solutions Inc.

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

IPC: G03G15/20

Abstract: An image forming apparatus includes a fixing section, a detection section, and a controller. The detection section detects a passing range of a recording medium in terms of a direction intersecting with a conveyance direction of the recording medium. A heating section of the fixing section includes a first heater and a second heater. The first heater has a longitudinal direction extending in an axis direction. The second heater has a longitudinal direction extending in terms of the axis direction from each of opposite ends of the first heater in terms of the axis direction. When a result of detection by the detection section indicates that the passing range of the recording medium does not overlap with a specific range of the second heater, the controller restricts heat generation by the second heater.

公开(公告)号：US20210389708A1

公开(公告)日：2021-12-16

申请号：US17342654

申请日：2021-06-09

Applicant: KYOCERA Document Solutions Inc.

Inventor： Akihiro KONDO ,  Takeru YOSHIDA

IPC: G03G15/20 ,  G03G15/00

Abstract: A fixing device includes a heated rotational body, a heating unit, a pressing rotational body, a pressing mechanism, a drive unit, a position recognition part, a rotational state determination part, a drive control part, and a pressing control part. The heated rotational body has a pattern. The position recognition part is configured to recognize a specific point contained in the pattern at a prescribed period. The rotational state determination part is configured to determine a variation in a rotational speed of the heated rotational body and a meandering state of the heated rotational body based on a position of the specific point recognized at the prescribed period. The drive control part is configured to control the drive unit based on the variation in the rotational speed. The pressing control part is configured to control the pressing mechanism based on the meandering state.

公开(公告)号：US20150346656A1

公开(公告)日：2015-12-03

申请号：US14721376

申请日：2015-05-26

Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Akihiro KONDO

IPC: G03G15/20

CPC classification number: G03G15/2039 ,  G03G15/2017

Abstract: A fixing device includes a first rotatory body, a heater, a pressure receiving member, a supporting member, a second rotatory body, a position detection section, and a determination section. The position detection section detects a position of an outer circumferential surface of the first rotatory body in terms of a radial direction. The determination section determines a rotation state of the first rotatory body based on a result of detection by the position detection section. The position detection section includes a first position detection member and a second position detection member. The first position detection member is located upstream of the fixing nip in terms of a rotation direction of the first rotatory body. The second position detection member is located downstream of the fixing nip in terms of the rotation direction.

Abstract translation: 定影装置包括第一旋转体，加热器，压力接收构件，支撑构件，第二旋转体，位置检测部和确定部。 位置检测部根据径向检测第一旋转体的外周面的位置。 决定部基于位置检测部的检测结果来决定第一旋转体的旋转状态。 位置检测部包括第一位置检测部件和第二位置检测部件。 第一位置检测构件就第一旋转体的旋转方向而位于定影辊隙的上游。 第二位置检测构件在旋转方向上位于定影辊隙的下游。

公开(公告)号：US20220276596A1

公开(公告)日：2022-09-01

申请号：US17652590

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

Abstract: A heater includes a fixing device including a heater substrate, electrodes, a heating element, and a heat conducting member. The heating element is disposed on a facing surface of the heater substrate that is to face a sheet, and includes a plurality of heating element pieces arranged in a line in a main scanning direction of the sheet with a gap therebetween. The heat conducting member stores heat generated from the heating element and radiates the heat toward the sheet passing over the gap.

公开(公告)号：US20200089148A1

公开(公告)日：2020-03-19

申请号：US16574192

申请日：2019-09-18

Applicant: KYOCERA Document Solutions Inc.

Inventor： Akihiro KONDO

IPC: G03G15/20 ,  G03G15/00

Abstract: A fixing device includes a sensor driving unit that drives a temperature sensor to be movable in an axial direction of a fixing rotating body, and a sensor position control unit that controls the position of the temperature sensor by the sensor driving unit. The sensor position control unit performs sensor position control for setting a sheet size identified by a size identification unit as a reference sheet size and allowing the temperature sensor to be located within a passage area of a sheet having the reference sheet size and a non-passage area of a sheet having a sheet size smaller by one size than the reference sheet size.

公开(公告)号：US20160306309A1

公开(公告)日：2016-10-20

申请号：US15132276

申请日：2016-04-19

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kenichi KASAMA ,  Shoko GON ,  Akihiro KONDO ,  Eiji NAKAJIMA

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G2215/0132 ,  G03G2215/2035

Abstract: A fixing device includes a fixing belt, a pressuring member, an exciting coil and a belt guide. The pressuring member comes into pressure contact with the fixing belt to form a fixing nip. The exciting coil is provided at an outer diameter side of the fixing belt and configured to generate a magnetic flux to inductively heat the fixing belt. The belt guide supports the fixing belt from an inner diameter side. The belt guide includes a contact part which is in contact with an inner circumferential face of the fixing belt and a non-contact part which is not in contact with the inner circumferential face of the fixing belt. A magnetic flux blocking member configured to block the magnetic flux that passes through the fixing belt is provided between the fixing belt and the non-contact part.

Abstract translation: 定影装置包括定影带，加压构件，励磁线圈和带引导件。 加压构件与定影带压力接触以形成定影辊隙。 励磁线圈设置在定影带的外径侧，并且被配置为产生磁通量以感应加热定影带。 皮带导向器从内径侧支撑定影带。 带引导件包括与定影带的内周面接触的接触部和不与定影带的内周面接触的非接触部。 构造成阻挡通过定影带的磁通的磁通阻挡构件设置在定影带和非接触部之间。

公开(公告)号：US20160306308A1

公开(公告)日：2016-10-20

申请号：US15131486

申请日：2016-04-18

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kenichi KASAMA ,  Shoko GON ,  Akihiro KONDO ,  Eiji NAKAJIMA

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G2215/2035

Abstract: A fixing device includes a fixing belt, a pressuring member, an exciting coil and a belt guide. The pressuring member comes into pressure contact with the fixing belt to form a fixing nip. The exciting coil is provided at an outer diameter side of the fixing belt and configured to generate a magnetic flux to inductively heat the fixing belt. The belt guide supports the fixing belt from an inner diameter side. The belt guide includes a contact part which is in contact with an inner circumferential face of the fixing belt and a non-contact part which is not in contact with the inner circumferential face of the fixing belt. The non-contact part is provided with a slit configured to inhibit induction heating of the non-contact part due to the magnetic flux generated by the exciting coil.

Abstract translation: 定影装置包括定影带，加压构件，励磁线圈和带引导件。 加压构件与定影带压力接触以形成定影辊隙。 励磁线圈设置在定影带的外径侧，并且被配置为产生磁通量以感应加热定影带。 皮带导向器从内径侧支撑定影带。 带引导件包括与定影带的内周面接触的接触部和不与定影带的内周面接触的非接触部。 非接触部设置有由于由励磁线圈产生的磁通而禁止非接触部的感应加热的狭缝。