公开(公告)号：US20190324391A1

公开(公告)日：2019-10-24

申请号：US16380596

申请日：2019-04-10

Applicant: Konica Minolta, Inc.

Inventor： Ryohei MATSUO

IPC: G03G15/20

Abstract: A fixation apparatus includes a fixation belt, an opposing rotating body, and a nip forming member. A nip most upstream portion corresponding to a most upstream portion of a fixation nip portion in a direction of transportation of a recording medium is defined in the nip forming member. The nip forming member includes a curved nip upstream portion which is provided at the nip most upstream portion and projects with respect to the opposing rotating body. The nip upstream portion is shaped to produce a speed difference between a side of a toner image where the toner image and the fixation belt are in contact with each other in a thickness direction of the recording medium and a side of the toner image where the toner image and the recording medium are in contact with each other in the thickness direction.

公开(公告)号：US20170023896A1

公开(公告)日：2017-01-26

申请号：US15213612

申请日：2016-07-19

Applicant: Konica Minolta, Inc.

Inventor： Yutaka OTSUKA ,  Masashi SAITO ,  Ryohei MATSUO ,  Toshihito KOBAYASHI

IPC: G03G15/20 ,  G03G21/20

CPC classification number: G03G15/2039 ,  G03G15/2003 ,  G03G15/2064 ,  G03G15/5004 ,  G03G21/206 ,  G03G2215/0132 ,  G03G2215/2016

Abstract: An image forming apparatus has an operating state and a non-operating state with power consumption smaller than in the operating state. The image forming apparatus includes a fixing device for fixing a toner image on a print material by heat, a fan for discharging heat from the image forming apparatus, and a control unit for controlling operation of the fan. When a non-operating time from shifting to the non-operating state to shifting to the operating state is shorter than a predetermined time, the control unit allows the fan to operate with predetermined power in the operating state. When the non-operating time is equal to or longer than the predetermined time, the control unit stops the fan or allows the fan to operate with power smaller than the predetermined power in the operating state.

Abstract translation: 图像形成装置具有操作状态和功耗小于操作状态的非操作状态。 图像形成装置包括用于通过加热将调色剂图像定影在打印材料上的定影装置，用于从图像形成装置排出热量的风扇，以及用于控制风扇的操作的控制单元。 当从转换到非操作状态到转换到操作状态的非操作时间短于预定时间时，控制单元允许风扇在运行状态下以预定功率运行。 当非操作时间等于或长于预定时间时，控制单元在运行状态下停止风扇或允许风扇以小于预定功率的功率运行。

公开(公告)号：US20160370741A1

公开(公告)日：2016-12-22

申请号：US15177811

申请日：2016-06-09

Applicant: Konica Minolta, Inc.

Inventor： Kohei HAYASHI ,  Yusuke MAMIYA ,  Masashi SAITO ,  Yutaka OTSUKA ,  Ryohei MATSUO ,  Toshihito KOBAYASHI

IPC: G03G15/20

CPC classification number: G03G15/2039 ,  G03G15/2064

Abstract: An image formation apparatus includes: a fixer that fixes a toner image onto a sheet by heat and pressure, and includes: a heat source; a first rotary member that is heated by the heat source; a temperature sensing unit that senses a temperature of the first rotary member; and a second rotary member that forms a nip with the first rotary member for applying heat and pressure to the sheet; and a controller that calculates a nip width of the nip in a passing direction of the sheet with use of a rotation period and a rest period of the first rotary member during which the heat source operates, and changes a target temperature of the first rotary member in accordance with the calculated nip width.

Abstract translation: 图像形成装置包括：定影器，其通过热和压力将调色剂图像定影在片材上，并且包括：热源; 由所述热源加热的第一旋转构件; 温度检测单元，其感测第一旋转构件的温度; 以及第二旋转构件，其与所述第一旋转构件形成用于向所述片材施加热和压力的辊隙; 以及控制器，其利用所述片材的经过方向的旋转周期和所述第一旋转构件的休止期间计算所述辊隙的夹持宽度，所述旋转周期和所述第一旋转构件的所述休止期间，所述第一旋转构件的热源运转，并且改变所述第一旋转构件 根据计算出的压区宽度。

公开(公告)号：US20150323891A1

公开(公告)日：2015-11-12

申请号：US14694479

申请日：2015-04-23

Applicant: KONICA MINOLTA, INC.

Inventor： Jinju OKUNO ,  Toshiya AOKI ,  Ryohei MATSUO

IPC: G03G15/20

CPC classification number: G03G15/20 ,  G03G15/2039 ,  G03G15/2053

Abstract: A fuser for thermally fixing a toner image on a recording medium includes: an endless fusing belt configured to transfer heat to the toner image; a heat source configured to heat the fusing belt; a detection unit configured to detect peripheral inward deformation of the fusing belt; and a power cut-off unit configured to cut off power supplied to the heat source upon detection of the peripheral inward deformation of the fusing belt by the detection unit.

Abstract translation: 用于将记录介质上的调色剂图像热定影的定影器包括：被配置为将热量传递到调色剂图像的环形定影带; 构造成加热所述定影带的热源; 检测单元，被配置为检测定影带的周边向内变形; 以及断电单元，被配置为在通过检测单元检测到定影带的周边向内变形时，切断供给到热源的电力。