公开(公告)号：US20220276591A1

公开(公告)日：2022-09-01

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

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：US20230168615A1

公开(公告)日：2023-06-01

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：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：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：US20230168614A1

公开(公告)日：2023-06-01

申请号：US18059220

申请日：2022-11-28

Applicant: KYOCERA Document Solutions Inc.

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

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2028 ,  G03G15/2039

Abstract: An image forming apparatus includes a fixing belt, a pressing member, a heating source, a temperature detecting element, a recording medium detection unit, and a control unit. The heating source is arranged to be opposed to the pressing member via the fixing belt so as to be in contact with an inner circumferential surface of the fixing belt and heats the fixing belt at a fixing nip between the fixing belt and the pressing member. The temperature detecting element detects a temperature of the heating source. The recording medium detection unit is arranged, on a conveyance path, on an upstream side of the fixing nip in a conveyance direction of a recording medium and detects presence/absence of the recording medium being conveyed. Based on the presence/absence of the recording medium detected by the recording medium detection unit, the control unit controls timing for energizing the heating source.

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.