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：US12124194B2

公开(公告)日：2024-10-22

申请号：US18176845

申请日：2023-03-01

Applicant: Ryohhei Sugiyama ,  Takayuki Andoh ,  Masahiro Samei ,  Kota Shiodera ,  Hiroshi Yoshinaga

Inventor： Ryohhei Sugiyama ,  Takayuki Andoh ,  Masahiro Samei ,  Kota Shiodera ,  Hiroshi Yoshinaga

IPC: G03G15/20

CPC classification number: G03G15/2007 ,  G03G15/2053

Abstract: A heating device includes a rotator, a heating source, a reflector, a rotator holder, and a liquid or semi-solid substance. The rotator is rotatably held. The heating source heats the rotator. The reflector includes a reflection face that reflects radiant heat emitted from the heating source. The reflection face has a reflectance lower at each end portion of the reflection face in a longitudinal direction of the rotator than at a center portion of the reflection face in the longitudinal direction of the rotator. The rotator holder holds a 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：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：US12116230B2

公开(公告)日：2024-10-15

申请号：US17540245

申请日：2021-12-02

Applicant: FUJIFILM Business Innovation Corp.

Inventor： Kei Tanaka ,  Naohito Otsuki ,  Hiroyuki Suzuki

IPC: B65H5/14 ,  B41J13/08 ,  B41J13/22 ,  B65H5/02 ,  B65H5/12 ,  B65H5/38 ,  B65H29/04 ,  B65H29/06 ,  G03G15/00 ,  G03G15/16 ,  G03G15/20

CPC classification number: B65H5/12 ,  B41J13/08 ,  B41J13/223 ,  B65H5/028 ,  B65H5/14 ,  B65H5/38 ,  B65H29/04 ,  B65H29/045 ,  B65H29/06 ,  G03G15/1685 ,  G03G15/2053 ,  G03G15/6558 ,  G03G15/657

Abstract: A transport device includes a rotating member that rotates; a circulating member that is loop-shaped and wrapped around the rotating member, the circulating member being circulated by rotation of the rotating member; a pair of pinching members attached to the circulating member and circulated together with the circulating member, the pair of pinching members changing from a separated state, in which the pair of pinching members are separated from each other, to a closely positioned state to pinch a transport object that has entered a space between the pair of pinching members in the separated state; and a guide unit positioned to overlap the pair of pinching members in the separated state when viewed in one direction along a rotational axis direction of the rotating member, the guide unit guiding the transport object into the space between the pair of pinching members in the separated state.

公开(公告)号：US20240329576A1

公开(公告)日：2024-10-03

申请号：US18358018

申请日：2023-07-24

Applicant: FUJIFILM Business Innovation Corp.

Inventor： Yuka NOMURA ,  Koji Yoshitsugu ,  Yasuhisa Gonda

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2028

Abstract: A cylindrical roller that is used by being rotated includes a heat dissipator having a tubular dense structure and disposed in at least a portion within an internal space of the roller in a state where the heat dissipator is in contact with an inner peripheral surface of the internal space.

公开(公告)号：US12104680B2

公开(公告)日：2024-10-01

申请号：US18450872

申请日：2023-08-16

Applicant: CANON KABUSHIKI KAISHA

Inventor： Takuya Hasegawa

IPC: G03G15/20 ,  F16H29/12 ,  G03G21/16

CPC classification number: F16H29/12 ,  G03G15/2053 ,  G03G21/1647

Abstract: A drive transmission device disclosed. The device has an input gear configured to rotate by a driving force from a driving source; a swing gear configured to rotate by a driving force from the input gear, the swing gear being located at a first position when the input gear is rotated in a forward direction and located at a second position that is different from the first position when the input gear is rotated in a backward direction that is a direction opposite to the forward direction; an output gear configured to separate from the swing gear when the swing gear is located at the first position, and that is in contact with the swing gear to be rotated by rotation of the swing gear when the swing gear is located at the second position; and a shaft portion configured to support the swing gear such that the swing gear is movable between the first position and the second position. The swing gear has a guide hole into which the shaft portion is inserted.

公开(公告)号：US20240310761A1

公开(公告)日：2024-09-19

申请号：US18123121

申请日：2023-03-17

Applicant: Toshiba Tec Kabushiki Kaisha

Inventor： Takeshi KOJIMA

IPC: G03G15/20 ,  G03G15/00

CPC classification number: G03G15/205 ,  G03G15/2053 ,  G03G15/2064 ,  G03G15/5004 ,  G03G2215/2035

Abstract: A fixing device includes a fixer, a temperature sensor, and a controller. The fixer includes a fixed body and a heat source, the fixed body is configured to rotate and is in contact with a medium, wherein the medium is configured to receive a developer image, and the heat source is configured to supply heat to the fixed body. The temperature sensor is configured to measure a temperature of a surface of the fixed body that is in contact with the medium. The controller is configured to clean the fixer when an estimated value of the temperature of the fixed body is higher than a predetermined value.

公开(公告)号：US20240302776A1

公开(公告)日：2024-09-12

申请号：US18441224

申请日：2024-02-14

Applicant: CANON KABUSHIKI KAISHA

Inventor： Kenichi Tagami ,  Keisuke Fujita ,  Ryosuke Oda

IPC: G03G15/20 ,  B65H5/06 ,  G03G15/00 ,  G03G21/16

CPC classification number: G03G15/2064 ,  B65H5/06 ,  G03G15/2053 ,  G03G15/6573 ,  G03G21/1638 ,  B65H2402/441 ,  B65H2404/10 ,  B65H2404/612 ,  B65H2601/111

Abstract: A sheet conveyance apparatus includes a first conveyance unit configured to form a first nip portion, a second conveyance unit configured to convey the sheet, and a guide unit configured to form a curved conveyance path. The guide unit includes a first guide, a second guide, a first driven roller rotatably driven with respect to the sheet by coming into contact with the sheet at a first contact point, and a second driven roller rotatably driven with respect to the sheet by coming into contact with the sheet at a second contact point. When viewed in a width direction orthogonal to the sheet conveyance direction, the first guide is formed so as not to intersect with a straight line passing through the first contact point and the second contact point on a side further upstream than the first contact point in the sheet conveyance direction.

公开(公告)号：US20240302774A1

公开(公告)日：2024-09-12

申请号：US18665902

申请日：2024-05-16

Applicant: Toshiba Tec Kabushiki Kaisha

Inventor： Toshihiro SONE

IPC: G03G15/20

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

Abstract: According to an embodiment, a heating device includes a cylindrical belt, a heater, a press roller, and a holder. The heater is disposed on an inner surface of the belt. The press roller rotates and is configured to contact an outer surface of the belt at a position opposite the heater to form a nip. The end portions of the press roller project by a first amount in a radial direction more than the central portion of the press roller. A holder has a first surface supporting the heater to face the cylindrical belt. The holder has a second surface that is opposite of the first surface with a center portion projecting in a direction orthogonal to the first surface more than the end portions of the second surface by a second projection amount that is greater than the first projection amount.

公开(公告)号：US20240302772A1

公开(公告)日：2024-09-12

申请号：US18119203

申请日：2023-03-08

Applicant: Toshiba Tec Kabushiki Kaisha

Inventor： Sasuke ENDO

IPC: G03G15/20 ,  G03G15/00

CPC classification number: G03G15/2053 ,  G03G15/2017 ,  G03G15/2039 ,  G03G15/5045 ,  G03G2215/2009 ,  G03G2215/2016 ,  G03G2215/2035

Abstract: A fixing device includes a film forming a cylinder, a heater, a thermometer, and a series of contact portions. The heater extends within the cylinder and includes a heating element that extends in a longitudinal direction along the cylinder. The thermometer detects a temperature of the cylinder. The plurality of contact portions contact an inner surface of the cylinder and are spaced apart from each other in the longitudinal direction. The contact portions include a first contact portion and a second contact portion. The first contact portion is longitudinally offset from the thermometer and has a first contact area with the cylinder. The second contact portion is longitudinally collocated with the thermometer and has a second contact area with the cylinder. The second contact area is smaller than the first contact area.