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：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：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.

公开(公告)号：US20190146388A1

公开(公告)日：2019-05-16

申请号：US16183915

申请日：2018-11-08

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hiroki KAWASAKI ,  Takashi EIKI ,  Kotatsu KAWAGUCHI ,  Ryohei TOKUNAGA ,  Atsushi KOHAMA ,  Yuhiro SAKAI ,  Sadanori NAKAE ,  Yuta KITABAYASHI ,  Shunsaku FUJII

IPC: G03G15/20 ,  H05B3/26

Abstract: A heating unit includes a circuit board, a plurality of heating parts, and a plurality of wiring parts. The heating parts are arranged in a first direction on a surface of the circuit board. The wiring parts are provided on the surface of the circuit board and electrically connect the heating parts and a power source to feed the heating parts. The wiring parts respectively include electrode terminal parts electrically connected to the power source outside the heating parts in the first direction. Sizes in a second direction orthogonal to the first direction of the heating parts are set to decrease gradually or stepwisely with separating in the first direction from the electrode terminal parts.