公开(公告)号：US20240126194A1

公开(公告)日：2024-04-18

申请号：US18465888

申请日：2023-09-12

Applicant: CANON KABUSHIKI KAISHA

Inventor： SHUTARO SAITO ,  KEISUKE YOSHIDA ,  YUYA YAMADA ,  TAKU ASHIDA ,  ASUNA FUKAMACHI ,  YUSUKE YAMAGUCHI ,  SHOHEI TSUZAKI ,  HIROSHI MIYAMOTO ,  YASUHARU TORATANI

IPC: G03G15/20

CPC classification number: G03G15/2028

Abstract: An image forming apparatus includes a first rotatable member, a second rotatable member, an air nozzle, and a pipe. The pipe includes a portion extending along a widthwise direction of the first rotatable member perpendicular to a recording material feeding direction.

公开(公告)号：US20240210864A1

公开(公告)日：2024-06-27

申请号：US18599949

申请日：2024-03-08

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：US20240126197A1

公开(公告)日：2024-04-18

申请号：US18486069

申请日：2023-10-12

Applicant: CANON KABUSHIKI KAISHA

Inventor： SHOHEI TSUZAKI ,  ASUNA FUKAMACHI ,  YUSUKE YAMAGUCHI ,  HIROSHI MIYAMOTO ,  YASUHARU TORATANI ,  KEISUKE YOSHIDA ,  SHUTARO SAITO ,  YUYA YAMADA ,  TAKU ASHIDA

IPC: G03G15/20 ,  G03G15/00

CPC classification number: G03G15/2064 ,  G03G15/607 ,  G03G15/6585 ,  G03G2215/00805

Abstract: An image forming apparatus includes a reception unit to receive a job, heating and pressing rotary members to form a nip portion, and a spraying member having a nozzle and a cylinder. The nozzle discharges air to the heating rotary member and a recording material. During a period after the reception unit receives the job and before a leading edge of a first sheet of the recording material reaches the nip portion, the spraying member performs a spraying operation of spraying air in an amount greater than or equal to a predetermined amount. The air that the spraying member sprays on the first sheet of the recording material during the job is higher in temperature than the air that the spraying member sprays during the period after the reception unit receives the job and before the leading edge of the first sheet of the recording material reaches the nip portion.

公开(公告)号：US20230273556A1

公开(公告)日：2023-08-31

申请号：US18168492

申请日：2023-02-13

Applicant: CANON KABUSHIKI KAISHA

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

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2064 ,  G03G2215/2038

Abstract: A fixing device includes a fixing belt configured to heat a recording material, a pressure member configured to press the fixing belt, and a sliding member configured to be in sliding contact with an inner peripheral surface of the fixing belt and being opposed to the pressure member. The pressure member and the fixing belt form a fixing nip portion, and heat and pressure are applied to the recording material at the fixing nip portion to fix a toner image onto the recording material. The sliding member includes a plurality of protrusions on a surface of the sliding member that is in sliding contact with the inner peripheral surface of the fixing belt. The following expressions are satisfied: The fixing belt satisfies the prescribed formula.

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：US20250021035A1

公开(公告)日：2025-01-16

申请号：US18757665

申请日：2024-06-28

Applicant: CANON KABUSHIKI KAISHA

Inventor： SUGURU TAKEUCHI ,  KENGO KOYAMA ,  AYANO SAITO ,  SHIGERU TANAKA ,  YASUHARU TORATANI ,  AKIYOSHI SHINAGAWA ,  SHUHEI YASUDA

IPC: G03G15/20

Abstract: A fixing device includes a belt member, a heating roller stretching the belt member, a steering roller stretching the belt member and a cover member. The steering roller controls a position of the belt member with respect to a rotation axis direction of the heating roller by tilting with respect to the rotation axis direction. The cover member is disposed with a gap from the belt member in such a manner as to cover a part of an outer side of the belt member. A distance between the cover member and the belt member in a first stretched region stretched by the steering roller is larger than a distance between the cover member and the belt member in a second stretched region stretched by the heating roller in a case where the steering roller is parallel to the heating roller.

公开(公告)号：US20240264557A1

公开(公告)日：2024-08-08

申请号：US18425575

申请日：2024-01-29

Applicant: CANON KABUSHIKI KAISHA

Inventor： SHUHEI YASUDA ,  AKIYOSHI SHINAGAWA ,  SUGURU TAKEUCHI ,  YASUHARU TORATANI ,  AYANO SAITO ,  KENGO KOYAMA ,  SHIGERU TANAKA

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2025 ,  G03G15/2064

Abstract: A fixing device includes an endless belt configured to heat a recording material, a pressure member contacting an outer circumferential surface of the endless belt to form a nip portion, and a pad, wherein a length of the endless belt is larger than a length of the pad in a width direction of the endless belt, and the pad includes a first surface forming the nip portion, a second surface facing the first surface, and a third surface connecting the first surface and the second surface in the width direction and formed in a conveyance direction of the recording material, and wherein the third surface has a curved shape in a cross section orthogonal to the conveyance direction of the recording material.

公开(公告)号：US20230393503A1

公开(公告)日：2023-12-07

申请号：US18184578

申请日：2023-03-15

Applicant: CANON KABUSHIKI KAISHA

Inventor： DAIGO MATSUURA ,  HIROKI KAWAI ,  AYANO OGATA ,  YASUHARU TORATANI ,  MISA KAWASHIMA

IPC: G03G15/20

CPC classification number: G03G15/205 ,  G03G15/2064 ,  G03G2215/2045

Abstract: A fixing apparatus includes a heating rotary member and a pressing rotary member, which form a nip portion, at which a toner image is fixed to a recording material, a mixture job is a job with a mixture of recording materials including a recording material with a first grammage and a recording material with a second grammage greater than the first grammage, one of a plurality of modes is performable in the mixture job, in which a maximum value of an amount of toner on the recording material with the first grammage is greater than a maximum value of the amount of toner on the recording material with the second grammage in the first mode whereas the maximum value on the recording material with the first grammage is equal to the maximum value on the recording material with the second grammage in the second mode.

公开(公告)号：US20250068103A1

公开(公告)日：2025-02-27

申请号：US18948159

申请日：2024-11-14

Applicant: CANON KABUSHIKI KAISHA

Inventor： YASUHARU TORATANI ,  SHUTARO SAITO ,  KEISUKE YOSHIDA ,  YUYA YAMADA ,  TAKU ASHIDA ,  ASUNA FUKAMACHI ,  SHOHEI TSUZAKI ,  YUSUKE YAMAGUCHI ,  HIROSHI MIYAMOTO

IPC: G03G15/20

Abstract: An image forming apparatus includes a first rotatable member, a second rotatable member, an air nozzle, and a pipe. The pipe includes a portion provided in a range overlapping with the first rotatable member and making one reciprocation or more in a case that when a direction crossing a feeding direction of a recording material fed in a nip is a widthwise direction of the first rotatable member, the pipe is viewed in a direction perpendicular to the widthwise direction.

公开(公告)号：US20240345513A1

公开(公告)日：2024-10-17

申请号：US18624476

申请日：2024-04-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： TATSUO YASUI ,  TAKUYA HASEGAWA ,  KENICHI TANAKA ,  RIKIYA TAKEMASA ,  TOMOYUKI KURIYAMA ,  AYANO SAITO ,  KENGO KOYAMA ,  SUGURU TAKEUCHI ,  SHUHEI YASUDA ,  AKIYOSHI SHINAGAWA ,  YASUHARU TORATANI ,  SHIGERU TANAKA

IPC: G03G15/20

CPC classification number: G03G15/2017 ,  G03G15/2064 ,  G03G2215/2038

Abstract: A fixing device includes an endless belt, a stretching roller, a stretching member, a pressing member, a rubbing member, a moving unit configured to move the rubbing member between a first position at which the rubbing member is separated from the outer peripheral surface of the belt and a second position at which the rubbing member is in contact with the outer peripheral surface of the belt, and a steering roller. In a case where the rubbing member is located at the second position, a region of the belt rubbed by the rubbing member is sandwiched between the stretching roller and the rubbing member. In a case where the rubbing member is located at the first position, the region of the belt rubbed by the rubbing member is separated from the stretching roller and the rubbing member.