公开(公告)号：US12124197B2

公开(公告)日：2024-10-22

申请号：US18162872

申请日：2023-02-01

Applicant: Hiroshi Yoshinaga ,  Takayuki Andoh ,  Masahiro Samei ,  Kota Shiodera ,  Toshiyuki Kabata

Inventor： Hiroshi Yoshinaga ,  Takayuki Andoh ,  Masahiro Samei ,  Kota Shiodera ,  Toshiyuki Kabata

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2007 ,  G03G15/2017 ,  G03G15/2025 ,  G03G15/2057 ,  G03G2215/20 ,  G03G2215/2003 ,  G03G2215/2025 ,  G03G2215/2035 ,  G03G2215/2048

Abstract: A heating device includes a rotator, a heating source, a rotator holder, and a liquid or semi-solid substance. The rotator is rotatably held. The heating source heats the rotator. The rotator holder holds a longitudinal end portion of the rotator. The rotator holder includes a reflector disposed at least at a portion to be irradiated with radiant heat emitted from the heating source to reflect the radiant heat. The reflector has a reflectance of not less than 60%. The liquid or semi-solid substance has lubricity and adheres to the rotator holder.

公开(公告)号：US20240345514A1

公开(公告)日：2024-10-17

申请号：US18752666

申请日：2024-06-24

Applicant: CANON KABUSHIKI KAISHA

Inventor： SUGURU TAKEUCHI ,  RYO YASHIRO ,  MASAYUKI TAMAKI ,  SHINSUKE TAKAHASHI

IPC: G03G15/20

CPC classification number: G03G15/2025 ,  G03G15/2053

Abstract: A fixing device includes an endless and rotatable belt of which an inner peripheral surface is applied with lubricant, a heater, a rotatable member to rotatably contact the belt and a nip forming member in contact with the inner peripheral surface of the belt. The nip forming member includes a holding portion, an upstream sliding portion and a downstream sliding portion. The downstream and upstream sliding portions have first and second sliding surfaces sliding with the inner peripheral surface of the belt, respectively. The second sliding surface has a curved shape, and when a force applied to the belt with respect to a length of the second sliding surface is defined as w (N/mm) and a curvature radius of the second sliding surface is defined as R (mm), R/w of the second sliding surface is equal to 5 (mm2/N) or larger and equal to 80 (mm2/N) or less.

公开(公告)号：US12111590B2

公开(公告)日：2024-10-08

申请号：US18153106

申请日：2023-01-11

Applicant: FUJIFILM Business Innovation Corp.

Inventor： Kenji Omori ,  Hideaki Ohara ,  Ryohei Yoshikawa

IPC: G03G15/20

CPC classification number: G03G15/2025 ,  G03G15/2064

Abstract: A fixing device includes: a first rotatable member; a second rotatable member disposed in contact with the first rotatable member; a pressing member that is disposed on an inner circumferential surface of the second rotatable member and presses the inner circumferential surface of the second rotatable member such that the second rotatable member is pressed against the first rotatable member; a sliding member interposed between the inner circumferential surface of the second rotatable member and the pressing member; and a lubricant interposed between the inner circumferential surface of the second rotatable member and the sliding member. The inner circumferential surface of the second rotatable member contains a resin having at least one group selected from the group consisting of an amido group, an imido group, a ketone group, and a sulfide group. A sliding surface of the sliding member contains a heat resistant thermoplastic resin other than a fluorocarbon resin and a resin having a siloxane group that is other than the heat resistant thermoplastic resin. The lubricant contains an oil having a siloxane group in a main chain.

公开(公告)号：US12085875B2

公开(公告)日：2024-09-10

申请号：US18152599

申请日：2023-01-10

Applicant: CANON KABUSHIKI KAISHA

Inventor： Youichi Chikugo ,  Rikiya Takemasa ,  Kenichi Tanaka ,  Takeshi Kozuma ,  Hidekazu Tatezawa ,  Taku Ashida ,  Mikihiko Watanabe

IPC: G03G15/20

CPC classification number: G03G15/2025 ,  G03G15/2053

Abstract: A fixing apparatus includes a fixing belt that is rotatable and endless, a pad, a pressing rotary member, and a scraping member. The pad contacts an inner circumferential surface of the fixing belt. The pressing rotary member contacts the pad via the fixing belt to form a nip portion. In cooperation with the fixing belt, the pressing rotary member fixes a toner image to a recording material by applying heat and pressure to the recording material at the nip portion. A lubricant is applied to the inner circumferential surface of the fixing belt. The scraping member includes an inclined portion inclined downward toward an outer side of the fixing belt and contacting an edge portion of the fixing belt to scrape the lubricant. The inclined portion is in contact with the edge portion of the fixing belt in an area where an outer surface of the fixing belt faces upward.

公开(公告)号：US11959039B2

公开(公告)日：2024-04-16

申请号：US18179552

申请日：2023-03-07

Applicant: Takayuki Andoh ,  Masahiro Samei ,  Kota Shiodera ,  Toshiyuki Kabata ,  Hiroshi Yoshinaga

Inventor： Takayuki Andoh ,  Masahiro Samei ,  Kota Shiodera ,  Toshiyuki Kabata ,  Hiroshi Yoshinaga

IPC: H04N1/00 ,  C10M107/50 ,  G03G15/20

CPC classification number: C10M107/50 ,  G03G15/2017 ,  G03G15/2025 ,  G03G15/2039

Abstract: A heating device includes a rotating body, a heating source, a rotating body holder, and a lubricant of liquid or semi-solid. The heating source heats the rotating body. The rotating body holder holds both longitudinal ends of the rotating body rotatably. The lubricant of liquid or semi-solid adheres to the rotating body holder. A temperature of the rotating body holder is lower than a generation temperature of fine particles of the lubricant.

公开(公告)号：US20240118649A1

公开(公告)日：2024-04-11

申请号：US18479907

申请日：2023-10-03

Applicant: Konica Minolta, Inc.

Inventor： Hokuto HATANO ,  Shunichi TAKAYA ,  Kazuhiro SAITO

IPC: G03G15/20 ,  G01J3/50

CPC classification number: G03G15/2025 ,  G01J3/501

Abstract: An image forming apparatus includes: an image carrier; a solid lubricant; a lubricant application member that scrapes off the solid lubricant and applies the scraped solid lubricant to a surface of the image carrier; a colorimeter that performs colorimetry of a colorimetric surface of the solid lubricant; and a hardware processor that sets a lubricant application condition such that a predetermined amount of lubricant is applied on the basis of a colorimetric result obtained by the colorimeter.

公开(公告)号：US20230297010A1

公开(公告)日：2023-09-21

申请号：US18160080

申请日：2023-01-26

Applicant: Daisuke INOUE ,  Takayuki ANDOH ,  Masahiro SAMEI ,  Kota SHIODERA ,  Hiroshi YOSHINAGA

Inventor： Daisuke INOUE ,  Takayuki ANDOH ,  Masahiro SAMEI ,  Kota SHIODERA ,  Hiroshi YOSHINAGA

IPC: G03G15/20

CPC classification number: G03G15/2025

Abstract: A heating device includes a rotator, a heating source, a reflector, a shield, a rotator holder, and a liquid or semi-solid substance. The rotator is rotatably held. The heating source heats the rotator. The reflector reflects radiant heat emitted from the heating source. The shield is disposed closer to a longitudinal end portion of the rotator than to a longitudinal center portion of the rotator to shield, between the heating source and the rotator, the radiant heat emitted from the heating source. The shield has a reflectance lower than a reflectance of the reflector. The rotator holder holds the longitudinal end portion of the rotator. The liquid or semi-solid substance has lubricity and adheres to the rotator holder.

公开(公告)号：US20230273555A1

公开(公告)日：2023-08-31

申请号：US18166651

申请日：2023-02-09

Applicant: CANON KABUSHIKI KAISHA

Inventor： HIROKI KAWAI ,  YASUHARU TORATANI ,  HIROSHI MIYAMOTO ,  AKIYOSHI SHINAGAWA ,  AYANO OGATA ,  DAIGO MATSUURA ,  MISA KAWASHIMA ,  MASANOBU TANAKA ,  ASUNA FUKAMACHI

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2025

Abstract: A fixing device includes an endless belt, a rotatable pressing member, a pad member inside of the belt, and a sliding member held by the pad member and sliding on an inner circumferential surface of the belt in a nip. The rotatable pressing member nips and feeds a recording material in the nip in cooperation with the belt and fixes a toner image on the recording material by applying heat and pressure. The sliding member includes a base material layer on which a plurality of projections projecting toward the rotatable pressing member are formed on a side sliding with the belt and a sliding layer provided on an outer surface of the plurality of projections. A shape of a surface of the sliding layer is a curved surface and a radius of curvature R of the curved surface satisfies 300 µm ≤ R ≤ 850 µm.

公开(公告)号：US20230229098A1

公开(公告)日：2023-07-20

申请号：US18152599

申请日：2023-01-10

Applicant: CANON KABUSHIKI KAISHA

Inventor： YOUICHI CHIKUGO ,  RIKIYA TAKEMASA ,  KENICHI TANAKA ,  TAKESHI KOZUMA ,  HIDEKAZU TATEZAWA ,  TAKU ASHIDA ,  MIKIHIKO WATANABE

IPC: G03G15/20

CPC classification number: G03G15/2025 ,  G03G15/2053

Abstract: A fixing apparatus includes a fixing belt that is rotatable and endless, a pad, a pressing rotary member, and a scraping member. The pad contacts an inner circumferential surface of the fixing belt. The pressing rotary member contacts the pad via the fixing belt to form a nip portion. In cooperation with the fixing belt, the pressing rotary member fixes a toner image to a recording material by applying heat and pressure to the recording material at the nip portion. A lubricant is applied to the inner circumferential surface of the fixing belt. The scraping member includes an inclined portion inclined downward toward an outer side of the fixing belt and contacting an edge portion of the fixing belt to scrape the lubricant. The inclined portion is in contact with the edge portion of the fixing belt in an area where an outer surface of the fixing belt faces upward.

公开(公告)号：US20190121264A1

公开(公告)日：2019-04-25

申请号：US16120477

申请日：2018-09-04

Applicant: KYOCERA Document Solutions Inc.

Inventor： Masayuki YAMADA

IPC: G03G15/20

CPC classification number: G03G15/2025 ,  G03G21/1628 ,  G03G21/1685 ,  G03G21/169

Abstract: A fixing device includes a fixing member, a pressing member, a cover and a cleaning device. The fixing member is configured to heat a toner on a medium while rotating. The pressing member is configured to form a pressing area with the fixing member while rotating and to press the toner on the medium passing through the pressing area. The cover is configured to be moved in one direction in an opening and closing direction to form a part of a conveying path for the medium and to be moved in the other direction in the opening and closing direction to open the part of the conveying path. The cleaning device is provided in the cover and configured to bring a cleaning member into contact with a surface of the fixing member in a state where the cover is moved in the one direction and to clean the surface.