公开(公告)号：US20240353778A1

公开(公告)日：2024-10-24

申请号：US18637488

申请日：2024-04-17

申请人： Daisuke INOUE ,  Takamasa HASE ,  Kentaro YAMASHITA ,  Arinobu YOSHIURA ,  Shogo NAKAMOTO ,  Mototaka IWAMA

发明人： Daisuke INOUE ,  Takamasa HASE ,  Kentaro YAMASHITA ,  Arinobu YOSHIURA ,  Shogo NAKAMOTO ,  Mototaka IWAMA

IPC分类号： G03G15/20 ,  G03G15/00 ,  G03G15/01

CPC分类号： G03G15/2017 ,  G03G15/0105 ,  G03G15/0189 ,  G03G15/2064 ,  G03G15/50

摘要： An image forming apparatus includes an image forming section, a fixing device, and circuitry. The image forming section forms an image on a recording medium. The fixing device includes a rotator including a flexible endless belt, a pressure rotator pressed against the rotator to form a nip between the rotator and the pressure rotator, a heater heating the rotator, and a movable shield. The movable shield is disposed between the heater and the rotator to shield the rotator from radiant heat generated from the heater and is movable according to a size of the recording medium. The circuitry is configured to control the image forming section to form the image on the recording medium based on an image forming condition and change at least one of an operating temperature of the movable shield or a shielding amount of the movable shield based on the image forming condition.

公开(公告)号：US20210200128A1

公开(公告)日：2021-07-01

申请号：US17128211

申请日：2020-12-21

申请人： Takashi SETO ,  Takamasa HASE

发明人： Takashi SETO ,  Takamasa HASE

IPC分类号： G03G15/20 ,  B41J11/00

摘要： A novel heating device includes a heating member configured to heat a sheet on an opposite face opposite a liquid applied face. The heating member has a curved portion along which the sheet is conveyed and warped so that the liquid applied face has a concave shape.

公开(公告)号：US20110176821A1

公开(公告)日：2011-07-21

申请号：US12985637

申请日：2011-01-06

申请人： Takamasa HASE

发明人： Takamasa HASE

IPC分类号： G03G15/20 ,  G03G15/00

CPC分类号： G03G15/6576 ,  G03G15/2032 ,  G03G15/2039

摘要： A fixing device, in which an unfixed image carried by a recording medium is passed through a fixing nip part being pressed by a fixing rotative body and a pressuring rotative body, and is fixed to the recording medium, is disclosed, including: a pressing part, and control part. The pressing part applies a pressure to the fixing nip part. The control part controls the pressure to be applied to the fixing nip part by the pressing part, to be lower than a case in which the recording medium passes through a curl correcting part for correcting a curl of the recording medium, when the recording medium does not pass through the curl correcting part.

摘要翻译： 一种定影装置，其中由记录介质承载的未定影图像通过由固定旋转体和加压旋转体按压的定影夹持部分，并被固定到记录介质上，包括：按压部分 ，和控制部分。 按压部分对定影辊隙部分施加压力。 控制部通过按压部控制施加到定影辊隙部的压力，比记录介质通过用于校正记录介质的卷曲的卷曲校正部的情况低，当记录介质 不通过卷曲校正部分。

公开(公告)号：US20240353781A1

公开(公告)日：2024-10-24

申请号：US18627461

申请日：2024-04-05

申请人： Kentaro YAMASHITA ,  Takamasa HASE ,  Arinobu YOSHIURA ,  Daisuke INOUE ,  Mototaka IWAMA ,  Ryohhei SUGIYAMA

发明人： Kentaro YAMASHITA ,  Takamasa HASE ,  Arinobu YOSHIURA ,  Daisuke INOUE ,  Mototaka IWAMA ,  Ryohhei SUGIYAMA

IPC分类号： G03G15/20 ,  G03G15/00

CPC分类号： G03G15/205 ,  G03G15/2064 ,  G03G15/5004 ,  G03G2215/00978 ,  G03G2215/2035

摘要： A fixing device includes a first rotator and a second rotator that form a nip therebetween and fix an image on a recording medium that enters the nip. A heater heats at least one of the first rotator or the second rotator. A controller controls the heater to switch between a first heating and a second heating, to switch from the first heating to the second heating before the recording medium enters the nip, to start the second heating at a time prior to a nip entry time at which the recording medium enters the nip by a delay time period taken for the heater to conduct heat to the nip, and to continue the first heating before the second heating for at least one control cycle at a duty cycle of power supplied to the heater. The duty cycle is not greater than 40%.

公开(公告)号：US20210197585A1

公开(公告)日：2021-07-01

申请号：US17129964

申请日：2020-12-22

申请人： Takamasa HASE ,  Takashi SETO

发明人： Takamasa HASE ,  Takashi SETO

IPC分类号： B41J11/00 ,  B41J11/04

摘要： A heating device includes a first heat member and a second heat member. The first heat member is configured to heat a sheet on a liquid applied face. The second heat member is configured to heat the sheet on an opposite face opposite the liquid applied face of the sheet. A temperature of the second heat member to heat the sheet is higher than a temperature of the first heat member to heat the sheet.

公开(公告)号：US20100061753A1

公开(公告)日：2010-03-11

申请号：US12552654

申请日：2009-09-02

申请人： Takamasa HASE

发明人： Takamasa HASE

IPC分类号： G03G15/20 ,  G03G13/20

CPC分类号： G03G15/2042

摘要： A fixing device including a fixing member to melt a toner image to fix the toner image to a recording medium, a pressing member pressed against the fixing member to form a nip to where the recording medium is conveyed, multiple temperature detectors to detect a temperature at multiple positions on a surface of the pressing member in a width direction thereof, a heating member including a heating layer to heat the fixing member; an exciting coil to generate magnetic fluxes to inductively heat the heating layer, and one or more pairs of degaussing coils to generate magnetic fluxes to degauss the magnetic fluxes generated by the exciting coil. An amount of power supplied to the one or more pairs of degaussing coils is controlled based on a result detected by each of the multiple temperature detectors.

摘要翻译： 一种定影装置，包括用于熔化调色剂图像以将调色剂图像固定到记录介质的固定构件，压靠在固定构件上的压紧构件，以形成传送到记录介质的位置的多个温度检测器，以检测在 在按压部件的宽度方向上的多个位置，具有加热层的加热部件的加热部件， 产生磁通以感应加热加热层的励磁线圈，以及一对或多对消磁线圈，以产生磁通以消磁由励磁线圈产生的磁通量。 基于由多个温度检测器中的每一个检测出的结果来控制提供给一对或多对消磁线圈的功率量。