公开(公告)号：US20220397849A1

公开(公告)日：2022-12-15

申请号：US17835781

申请日：2022-06-08

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kuniaki NAKANO ,  Takashi MIYAKE ,  Kenichi KASAMA

IPC: G03G15/20

Abstract: A fixing device includes a first fixing member, a second fixing member, a charging portion, and a control portion. The first fixing member makes contact with a toner image on a sheet conveyed along a conveying passage. The second fixing member forms a nip. The charging portion generates an application current. The control portion can perform an application mode, in which the application current is generated, and a standby mode, in which no application current is generated. The control portion performs the application mode during a first period after initial start-up until the passage of a predetermined period and performs the standby mode during a second period after the passage of the first period until the passage of a predetermined period.

公开(公告)号：US20160132003A1

公开(公告)日：2016-05-12

申请号：US14783327

申请日：2015-02-16

Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Shoji KODA ,  Kenichi KASAMA

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2017 ,  G03G2215/2035

Abstract: A fixing device according to the present invention includes a fixing belt (21), a cap member (28) attached to an end part (21a) of the fixing belt (21) and an elastic member (29) arranged between the fixing belt (21) and the cap member (28). The cap member (28) includes a main body part (55) covering an outside of the end part (21a) of the fixing belt (21) and a flange part (56) extending from the main body part (55) to an inside and covering an outer diameter side of the end part (21a) of the fixing belt (21). A step (s) is formed in an inner circumference face of the flange part (56). An outer circumference face of the elastic member (29) comes into contact with an inside part from the step (s) in the inner circumference face of the flange part (56).

Abstract translation: 根据本发明的定影装置包括定影带（21），附接到定影带（21）的端部（21a）的盖构件（28）和布置在定影带（21）之间的弹性构件（29） 21）和盖构件（28）。 盖构件（28）包括覆盖定影带（21）的端部（21a）的外侧的主体部（55）和从主体部（55）向内侧延伸的凸缘部（56） 并覆盖定影带（21）的端部（21a）的外径侧。 在凸缘部（56）的内周面上形成有台阶。 弹性构件（29）的外周面与凸缘部（56）的内周面的台阶的内侧部接触。

公开(公告)号：US20180196382A1

公开(公告)日：2018-07-12

申请号：US15841737

申请日：2017-12-14

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kenichi KASAMA ,  Akihiro KONDO ,  Kuniaki NAKANO

IPC: G03G15/20

CPC classification number: G03G15/2028 ,  G03G15/0216 ,  G03G15/161 ,  G03G15/2053 ,  G03G15/206 ,  G03G21/02

Abstract: A fixing device includes a fixing member, a pressing member, a charger, and adjusting part. The fixing member heats toner images on media. The pressing member forms nips with the fixing member and presses the media. The charger uses a corona discharge that occurs in an electric field generated around a discharging electrode so as to charge the fixing member to a same polarity of toner in the toner images. The adjusting part increases a bias applied to the discharging electrode in accordance with increase of a cumulative number calculated by accumulating a number of the media on which the toner images are fixed or increase of a cumulative printing amount calculated by multiplying a printing rate that indicates a ratio of an area of the toner images to an area of the media by the cumulative number.

公开(公告)号：US20130195522A1

公开(公告)日：2013-08-01

申请号：US13746584

申请日：2013-01-22

Applicant: Kyocera Document Solutions Inc.

Inventor： Kenichi KASAMA

IPC: G03G15/20

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

Abstract: A fixing device includes: a fixing belt; a heat portion; a pressure roller; a push member that pushes the fixing belt against the pressure roller; and a push pad that is disposed on a surface of the push member that opposes the fixing belt. A slide surface of the push pad has a flat portion substantially parallel to a convey direction of the recording medium and an arc-shaped portion that bends toward the pressure roller in a more downstream side than the flat portion in the recording medium convey direction, the arc-shaped portion includes a radius R2 of curvature larger than a radius R1 of curvature of the pressure roller and a center O2 of curvature that is situated in a more upstream side than a straight line which passes a center O1 of curvature of the pressure roller and is perpendicular to the recording medium convey direction.

Abstract translation: 定影装置包括：定影带; 热部; 压辊; 推动构件，其将定影带推靠在压力辊上; 以及设置在所述推动构件的与所述定影带相对的表面上的推动垫。 推垫的滑动表面具有基本上平行于记录介质的输送方向的平坦部分和在记录介质输送方向上比平坦部分更靠下游侧朝向加压辊弯曲的弧形部分， 弧形部分包括大于加压辊的曲率半径R1的曲率半径R2和位于比通过加压辊的曲率中心O1的直线更上游侧的曲率中心O2 并且垂直于记录介质输送方向。

公开(公告)号：US20160223965A1

公开(公告)日：2016-08-04

申请号：US15011825

申请日：2016-02-01

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kenichi KASAMA

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G2215/2035

Abstract: In a fixing device including a cap member mounted at an end portion of a fixing belt in a rotation shaft direction via a rotation transfer member, an axis center of a support shaft supporting the cap member is made eccentric with respect to a rotation axis center of the fixing belt.

Abstract translation: 在包括通过旋转传递构件在旋转轴方向上安装在定影带的端部处的盖构件的固定装置中，支撑盖构件的支撑轴的轴心相对于旋转轴中心偏心 定影带。

公开(公告)号：US20130279957A1

公开(公告)日：2013-10-24

申请号：US13867713

申请日：2013-04-22

Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Kenichi KASAMA

IPC: G03G15/20

CPC classification number: G03G15/2085 ,  G03G15/2028 ,  G03G15/2064 ,  G03G2215/2035

Abstract: A fusing device includes a regulating member and a switching mechanism. The regulating member has a flat surface and an arc-shaped surface and regulates a nip formed by a belt and a roller. The switching mechanism switches the fusing device between a first mode and a second mode in which an unfused toner image is fused to a recording medium. The flat surface is provided along a direction in which the recording medium enters the nip. The arc-shaped surface is provided downstream of the flat surface in the recording medium entry direction, is contiguous to the flat surface, and is curved toward the roller. In the first mode, the nip is regulated by the flat surface and the arc-shaped surface. In the second mode, the nip is regulated by the flat surface of the flat and arc-shaped surfaces.

Abstract translation: 定影装置包括调节构件和切换机构。 调节构件具有平坦表面和弧形表面，并且调节由带和辊形成的辊隙。 切换机构在第一模式和第二模式之间切换定影装置，其中未熔化的调色剂图像融合到记录介质。 平面在记录介质进入辊隙的方向上设置。 弧形表面设置在记录介质入口方向上的平坦表面的下游，与平坦表面邻接并且朝向辊弯曲。 在第一模式中，辊隙由平坦表面和弧形表面调节。 在第二模式中，辊隙由扁平和弧形表面的平坦表面调节。

公开(公告)号：US20180032011A1

公开(公告)日：2018-02-01

申请号：US15619769

申请日：2017-06-12

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yuzuru NANJO ,  Kenichi KASAMA ,  Noriaki FURUKAWA

IPC: G03G15/20

CPC classification number: G03G15/2064 ,  G03G15/2017 ,  G03G21/206

Abstract: A fixing device includes a fixing member, a pressing member, a charger and an air discharging device. The fixing member is rotatably provided and heated by a heat source. The pressing member is rotatably provided and brought into pressure contact with the fixing member to form a fixing nip through which a sheet having a toner image is passed. The charger is disposed to oppose to the fixing member and applies an electric charge of the same polarity as a toner constituting the toner image to a surface of the fixing member. The air discharging device discharges an air flow passed between the fixing member and the charger via a filter.

公开(公告)号：US20160306309A1

公开(公告)日：2016-10-20

申请号：US15132276

申请日：2016-04-19

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kenichi KASAMA ,  Shoko GON ,  Akihiro KONDO ,  Eiji NAKAJIMA

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G2215/0132 ,  G03G2215/2035

Abstract: A fixing device includes a fixing belt, a pressuring member, an exciting coil and a belt guide. The pressuring member comes into pressure contact with the fixing belt to form a fixing nip. The exciting coil is provided at an outer diameter side of the fixing belt and configured to generate a magnetic flux to inductively heat the fixing belt. The belt guide supports the fixing belt from an inner diameter side. The belt guide includes a contact part which is in contact with an inner circumferential face of the fixing belt and a non-contact part which is not in contact with the inner circumferential face of the fixing belt. A magnetic flux blocking member configured to block the magnetic flux that passes through the fixing belt is provided between the fixing belt and the non-contact part.

Abstract translation: 定影装置包括定影带，加压构件，励磁线圈和带引导件。 加压构件与定影带压力接触以形成定影辊隙。 励磁线圈设置在定影带的外径侧，并且被配置为产生磁通量以感应加热定影带。 皮带导向器从内径侧支撑定影带。 带引导件包括与定影带的内周面接触的接触部和不与定影带的内周面接触的非接触部。 构造成阻挡通过定影带的磁通的磁通阻挡构件设置在定影带和非接触部之间。

公开(公告)号：US20160306308A1

公开(公告)日：2016-10-20

申请号：US15131486

申请日：2016-04-18

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kenichi KASAMA ,  Shoko GON ,  Akihiro KONDO ,  Eiji NAKAJIMA

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G2215/2035

Abstract: A fixing device includes a fixing belt, a pressuring member, an exciting coil and a belt guide. The pressuring member comes into pressure contact with the fixing belt to form a fixing nip. The exciting coil is provided at an outer diameter side of the fixing belt and configured to generate a magnetic flux to inductively heat the fixing belt. The belt guide supports the fixing belt from an inner diameter side. The belt guide includes a contact part which is in contact with an inner circumferential face of the fixing belt and a non-contact part which is not in contact with the inner circumferential face of the fixing belt. The non-contact part is provided with a slit configured to inhibit induction heating of the non-contact part due to the magnetic flux generated by the exciting coil.

Abstract translation: 定影装置包括定影带，加压构件，励磁线圈和带引导件。 加压构件与定影带压力接触以形成定影辊隙。 励磁线圈设置在定影带的外径侧，并且被配置为产生磁通量以感应加热定影带。 皮带导向器从内径侧支撑定影带。 带引导件包括与定影带的内周面接触的接触部和不与定影带的内周面接触的非接触部。 非接触部设置有由于由励磁线圈产生的磁通而禁止非接触部的感应加热的狭缝。

公开(公告)号：US20190265627A1

公开(公告)日：2019-08-29

申请号：US16235078

申请日：2018-12-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yuta KITABAYASHI ,  Yoshihiro YAMAGISHI ,  Kenichi KASAMA ,  Koji UNO ,  Nobuyuki HAYASHI

IPC: G03G15/00 ,  G03G15/20

Abstract: An image forming apparatus has an image forming portion, a fixing device, a temperature sensing device, and a control portion. The fixing device has a fixing member having a heated rotary member and a pressing member forming a fixing nip by making contact with the heated rotary member. The temperature sensing device senses the surface temperature of at least one of the heated rotary member and the pressing member in a plurality of regions in the axial direction. The control portion estimates the thickness distribution of the surface layer of at least one of the heated rotary member and the pressing member in the axial direction based on the time taken for the surface temperature in the plurality of regions to reach the predetermined temperature, and thereby estimates the lifetime of at least one of the heated rotary member or the pressing member based on the estimated thickness distribution.