公开(公告)号：US20240310760A1

公开(公告)日：2024-09-19

申请号：US18669369

申请日：2024-05-20

Applicant: CANON KABUSHIKI KAISHA

Inventor： Motoyasu Muramatsu

IPC: G03G15/20

CPC classification number: G03G15/2046 ,  G03G15/2053 ,  G03G15/2064 ,  G03G2215/2019

Abstract: A heating device includes an elongated heater, a first holding member configured to hold the heater, a power shut-off member configured to shut off power supply to the heater, a second holding member configured to hold the power shut-off member, a first urging member configured to press the power shut-off member against the heater, and a regulation member configured to regulate a position of the second holding member, wherein, in a longitudinal direction of the heater, one end side of the second holding member is urged by the first urging member, and another end side of the second holding member is regulated in position by the regulation member.

公开(公告)号：US12066774B2

公开(公告)日：2024-08-20

申请号：US18322042

申请日：2023-05-23

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yasuharu Chiyoda ,  Masayuki Tamaki ,  Ryo Yashiro ,  Shinsuke Takahashi ,  Dai Kanai

IPC: G03G15/20

CPC classification number: G03G15/2017 ,  G03G15/20 ,  G03G15/2028 ,  G03G15/2046 ,  G03G15/2053 ,  G03G2215/2003 ,  G03G2215/2016 ,  G03G2215/2032 ,  G03G2215/2038 ,  G03G2215/2061

Abstract: A fixing apparatus includes a fixing belt, a heating roller, a nip portion forming member, a pressing rotary member, a suspending roller, and an urging unit. The heating roller is in contact with an inner surface of the fixing belt and heats the fixing belt. The suspending roller has a center and both ends in an area where the fixing belt and the suspending roller are in contact with each other in a width direction of the suspending roller. Outside diameters at both ends are greater than an outside diameter at the suspending roller center by a value between 50 micrometer and 300 micrometer, inclusive. The urging unit urges the suspending roller from the inner surface of the fixing belt toward an outer circumference surface of the fixing belt. A force that the urging unit applies to the suspending roller ranges between 50 newtons and 100 newtons, inclusive.

公开(公告)号：US09989902B2

公开(公告)日：2018-06-05

申请号：US15422495

申请日：2017-02-02

Applicant: Konica Minolta, Inc.

Inventor： Nobuyasu Tamura

IPC: G03G15/20

CPC classification number: G03G15/2039 ,  G03G15/2046

Abstract: An image forming apparatus includes a fixing member, a pressing member, a heating unit and a controller. The fixing member heats a toner image formed on a sheet. The pressing member presses the sheet onto the fixing member. The heating unit heats the fixing member. The controller controls the heating unit. The sheet is located at the fixing member in a first period and the sheet is not located at the fixing member and the fixing member is located between sheets in a second period. The controller controls the heating unit such that the heating unit heats the fixing member in a first heating pattern in which a heating period does not include the second period or in a second heating pattern in which a heating period includes the second period.

公开(公告)号：US09977386B2

公开(公告)日：2018-05-22

申请号：US15420591

申请日：2017-01-31

Applicant: CANON KABUSHIKI KAISHA

Inventor： Mitsuhiko Sato

IPC: G03G15/00 ,  G03G15/20

CPC classification number: G03G15/5062 ,  G03G15/2046 ,  G03G15/50 ,  G03G2215/00738 ,  G03G2215/0129

Abstract: An image forming apparatus determines, in a first mode, an image forming condition according to characteristic data, which is input by a user and represents characteristics of a sheet contained in a sheet container, causes a sensor to detect characteristics of a sheet, and stores characteristic data according to a result of the detection into a memory. The image forming apparatus determines, in a second mode with the characteristic data being stored in the memory, an image forming condition, based on the characteristic data stored in the memory before a result of detecting a characteristic of a sheet by the sensor is obtained. The image forming apparatus causes, in the second mode with the characteristic data being not stored in the memory, the sensor to detect characteristics of a sheet, and determines an image forming condition based on a result of the detection.

公开(公告)号：US20180017911A1

公开(公告)日：2018-01-18

申请号：US15647698

申请日：2017-07-12

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tatsuhito Watanabe

IPC: G03G15/20 ,  G03G15/08

CPC classification number: G03G15/0856 ,  G03G15/0858 ,  G03G15/086 ,  G03G15/2028 ,  G03G15/2042 ,  G03G15/2046 ,  G03G15/206 ,  G03G15/2064 ,  G03G15/6591 ,  G03G2215/2045

Abstract: An image forming apparatus includes an image forming station configured to form a toner image and a recording material; a fixing portion configured to fix the toner image formed by the image forming station on the recording material; a selector configured to select a correction level for correcting crease of an envelope, by an operator; and a controller configured to control a fixing condition in response to the correction level selected on the selector.

公开(公告)号：US20170299991A1

公开(公告)日：2017-10-19

申请号：US15641447

申请日：2017-07-05

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Satoshi Iwamoto

IPC: G03G15/20

CPC classification number: G03G15/2039 ,  G03G15/2042 ,  G03G15/2046 ,  G03G2215/2032

Abstract: According to one embodiment, a fixing device includes a heat roller, a first heat generating body, a second heat generating body, and a power adjuster. The heat roller heats a conveyed sheet. The first heat generating body is provided in the heat roller and generates heat in the vicinity of the center in the length direction of the heat roller. The second heat generating body is provided in the heat roller and generates heat in the vicinities of both the ends in the length direction of the heat roller. The power adjuster applies thinning control to electric energy supplied to one or both of the first heat generating body and the second heat generating body.

公开(公告)号：US20170255143A1

公开(公告)日：2017-09-07

申请号：US15422495

申请日：2017-02-02

Applicant: Konica Minolta, Inc.

Inventor： Nobuyasu Tamura

IPC: G03G15/20

CPC classification number: G03G15/2039 ,  G03G15/2046

Abstract: An image forming apparatus includes a fixing member, a pressing member, a heating unit and a controller. The fixing member heats a toner image formed on a sheet. The pressing member presses the sheet onto the fixing member. The heating unit heats the fixing member. The controller controls the heating unit. The sheet is located at the fixing member in a first period and the sheet is not located at the fixing member and the fixing member is located between sheets in a second period. The controller controls the heating unit such that the heating unit heats the fixing member in a first heating pattern in which a heating period does not include the second period or in a second heating pattern in which a heating period includes the second period.

公开(公告)号：US09740154B2

公开(公告)日：2017-08-22

申请号：US15216316

申请日：2016-07-21

Applicant: Konica Minolta, Inc.

Inventor： Nobuyasu Tamura

IPC: G03G15/00 ,  G03G15/20

CPC classification number: G03G15/5029 ,  G03G15/2046

Abstract: An image forming device includes: an image forming unit configured to form an image on paper fed from a paper housing unit; a heater lighting control unit configured to determine, based on a temperature detected by a temperature detecting unit in a fixing unit at least including a fixing roller that holds and carries the paper on which the image is formed, a pressure roller arranged in pressure-contact with the fixing roller, a heater that heats the fixing roller, and the temperature detecting unit arranged in a vicinity of the heater, a lighting rate of the heater; and a paper determination unit configured to determine information related to the paper based on lighting rates of the heater in standby and in printing which rates are determined by the heater lighting control unit.

公开(公告)号：US20160357134A1

公开(公告)日：2016-12-08

申请号：US14729220

申请日：2015-06-03

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Kazuhiko Kikuchi

IPC: G03G15/20

CPC classification number: G03G15/2032 ,  G03G15/2046 ,  G03G15/2053 ,  G03G15/206 ,  G03G15/5029 ,  G03G2215/00734 ,  G03G2215/00738 ,  G03G2215/2035 ,  G03G2215/2061

Abstract: A fixing device includes a fixing belt, a nip pad, a press roller, a driving portion, and a heat generation source. The fixing belt has an endless shape. The nip pad is located on an inner circumferential side of the fixing belt. The nip pad presses the fixing belt. The press roller presses the fixing belt along with the nip pad. The driving portion moves the press roller toward the nip pad. The heat generation source causes the fixing belt to generate heat. A control section controls an image forming section and the fixing device. The nip pad includes a protrusion. The protrusion protrudes toward an outer circumference of the fixing belt and a downstream side of the nip. The control section changes a movement amount of a protrusion to the press roller.

Abstract translation: 定影装置包括定影带，压区，压辊，驱动部和发热源。 定影带有一个无尽的形状。 夹持垫位于定影带的内周侧。 夹持垫压固定带。 压辊与定位带一起按压定影带。 驱动部分使压辊朝向夹持板移动。 发热源导致定影带产生热量。 控制部控制图像形成部和定影装置。 压区包括突起。 突出部朝向定影带的外周和辊隙的下游侧突出。 控制部将突起的移动量变更为压辊。

公开(公告)号：US09430176B2

公开(公告)日：2016-08-30

申请号：US14099847

申请日：2013-12-06

Applicant: CANON KABUSHIKI KAISHA

Inventor： Kazutaka Shinagawa

IPC: G06F3/12 ,  G03G15/20 ,  G03G15/00

CPC classification number: G06F3/1296 ,  G03G15/2046 ,  G03G15/5025

Abstract: A printing apparatus sets, as time for performing pre-processing before performing print processing, first time if the printing rate calculated by the calculation unit is smaller than a predetermined value, and second time that is longer than the first time if the printing rate calculated by the calculation unit is larger than the predetermined value.

Abstract translation: 如果由计算单元计算的打印率小于预定值，则打印设备在执行打印处理之前，作为执行预处理的时间设置第一次，如果打印速率被计算，则第二次比第一次更长 由计算单元大于预定值。