公开(公告)号：US11822273B2

公开(公告)日：2023-11-21

申请号：US17678656

申请日：2022-02-23

Applicant: KYOCERA Document Solutions Inc.

Inventor： Einosuke Kikuchi ,  Kuniaki Nakano

IPC: G03G15/20

CPC classification number: G03G15/2053

Abstract: A fixing device includes a fixing member, a pressurizing member, a charging portion, and a control portion. The fixing member rotates while being heated. The pressurizing member forms a nip portion between itself and a surface of the fixing member in such a way as to hold a sheet therebetween and conveys the sheet by rotating together with the fixing member, wherein an image of toner has been formed on the sheet. The charging portion electrically charges the surface of the fixing member to a polarity that is same as a charging polarity of the toner by supplying a charging current to a pair of electrodes that is disposed to face the surface of the fixing member. The control portion derives an index value of a charge amount of the toner on the sheet, and adjusts the charging current based on the index value.

公开(公告)号：US11619896B2

公开(公告)日：2023-04-04

申请号：US17648405

申请日：2022-01-19

Applicant: KYOCERA Document Solutions Inc.

Inventor： Einosuke Kikuchi ,  Kuniaki Nakano

IPC: G03G15/20

Abstract: A fixing device includes a fixing member, a pressurizing member, a charging portion, and a control portion. The fixing member rotates while being heated. The pressurizing member forms a nip portion between itself and a surface of the fixing member in such a way as to hold a sheet therebetween and conveys the sheet by rotating together with the fixing member, wherein an image of toner has been formed on the sheet. The charging portion electrically charges the surface of the fixing member to a polarity that is same as a charging polarity of the toner by supplying a charging current to a pair of electrodes that is disposed to face the surface of the fixing member. The control portion increases the charging current as time passes during a control time period that corresponds to a time period for which the sheet passes through the nip portion.

公开(公告)号：US20220236671A1

公开(公告)日：2022-07-28

申请号：US17648405

申请日：2022-01-19

Applicant: KYOCERA Document Solutions Inc.

Inventor： Einosuke Kikuchi ,  Kuniaki Nakano

IPC: G03G15/20

Abstract: A fixing device includes a fixing member, a pressurizing member, a charging portion, and a control portion. The fixing member rotates while being heated. The pressurizing member forms a nip portion between itself and a surface of the fixing member in such a way as to hold a sheet therebetween and conveys the sheet by rotating together with the fixing member, wherein an image of toner has been formed on the sheet. The charging portion electrically charges the surface of the fixing member to a polarity that is same as a charging polarity of the toner by supplying a charging current to a pair of electrodes that is disposed to face the surface of the fixing member. The control portion increases the charging current as time passes during a control time period that corresponds to a time period for which the sheet passes through the nip portion.

公开(公告)号：US10175616B2

公开(公告)日：2019-01-08

申请号：US15869143

申请日：2018-01-12

Applicant: KYOCERA Document Solutions Inc.

Inventor： Einosuke Kikuchi

IPC: G03G15/20

Abstract: A fixing device includes a heating body, a pressuring body, a charging part and a collecting part. The heating body contacts with a medium having a toner image while rotating to heat the medium. The pressuring body forms a nip with the heating roller while rotating to pressure the medium passing through the nip with the heating body. The charging part is positioned to face to the heating body and electrically discharges to electrically charge the heating body with the same polarity as polarity of toner. The collecting part is positioned to face to a position at an upstream side with respect to a facing position on the heating body to the charging part and at a downstream side with respect to a forming position of the nip in a rotating direction of the heating body, and collects impurities caused by the medium passing the nip by absorbing or removing.

公开(公告)号：US09551959B2

公开(公告)日：2017-01-24

申请号：US15012693

申请日：2016-02-01

Applicant: KYOCERA Document Solutions Inc.

Inventor： Einosuke Kikuchi ,  Akira Matayoshi

IPC: G03G15/16 ,  G03G15/08

CPC classification number: G03G15/1605 ,  G03G15/0891 ,  G03G15/162

Abstract: An image forming apparatus includes a toner containing portion, a first conveying member, an image conveying portion, and an image forming portion. The first conveying member is configured to convey the toner in a conveyance direction within the toner containing portion. The image conveying portion includes a surface layer portion having a first end portion located at an upstream side in the conveyance direction and a second end portion located at a downstream side in the conveyance direction. The first end portion has a larger layer thickness than second end portion. The image conveying portion is configured to convey a toner image formed on a surface of the surface layer portion at a predetermined image forming position, to a transfer position for transfer to a transfer target medium. The image forming portion is configured to form the toner image on the surface layer portion by using the toner being conveyed.

Abstract translation: 图像形成装置包括调色剂容纳部分，第一传送部件，图像传送部分和图像形成部分。 第一输送构件构造成在调色剂容纳部分内沿输送方向输送调色剂。 图像传送部分包括表面层部分，其具有位于输送方向上游侧的第一端部和位于输送方向下游侧的第二端部。 第一端部具有比第二端部更大的层厚度。 图像传送部被配置为将形成在表面层部分的表面上的调色剂图像在预定图像形成位置传送到转印位置以转印到转印目标介质。 图像形成部分被配置为通过使用被输送的调色剂在表面层部分上形成调色剂图像。

公开(公告)号：US09261824B2

公开(公告)日：2016-02-16

申请号：US14499177

申请日：2014-09-27

Applicant: Kyocera Document Solutions Inc.

Inventor： Einosuke Kikuchi

IPC: G03G15/16 ,  G03G15/00

CPC classification number: G03G15/168 ,  G03G15/5004 ,  G03G15/80 ,  G03G2215/0634 ,  G03G2215/1614 ,  G03G2221/1807

Abstract: An image forming apparatus includes an apparatus main body, a power supply switch, a photoreceptor drum, a charging device, an exposure device, a developing device, a transfer roller, a cleaning device, and a toner-layer formation unit. The transfer roller contacts the circumferential surface of the photoreceptor drum at a downstream side with respect to the developing device in the rotation direction and is configured to transfer the toner image to a sheet. The cleaning device is cleaning device arranged opposed to the photoreceptor drum, downstream. The cleaning device is configured to clean the photoreceptor drum. The toner-layer formation unit is configured to form a toner layer on a surface of the transfer roller in an initial operation started after the apparatus main body is installed in a predetermined installation location and the power supply switch is switched on.

Abstract translation: 图像形成装置包括装置主体，电源开关，感光鼓，充电装置，曝光装置，显影装置，转印辊，清洁装置和调色剂层形成单元。 转印辊在相对于显影装置的旋转方向的下游侧接触感光鼓的圆周表面，并且被配置为将调色剂图像转印到纸张上。 清洁装置是与下游的感光鼓相对布置的清洁装置。 清洁装置构造成清洁感光鼓。 调色剂层形成单元被配置为在设备主体安装在预定安装位置并且电源开关接通之后开始的初始操作中在转印辊的表面上形成调色剂层。

公开(公告)号：US20130322944A1

公开(公告)日：2013-12-05

申请号：US13905505

申请日：2013-05-30

Applicant: KYOCERA Document Solutions Inc.

Inventor： Sueaki Okamoto ,  Einosuke Kikuchi

IPC: G03G15/00

CPC classification number: G03G15/6555 ,  G03G15/1695 ,  G03G15/6558 ,  G03G15/6594

Abstract: An image forming apparatus includes an image bearing member and a transfer member, which form a transfer nip portion, and a guide member for guiding a sheet to the transfer nip portion. The guide member includes a rigid restricting member including a guide surface, a cut portion formed at a leading edge part of the guide surface, and a sheet-like elastic restricting member to cover the cut portion. The elastic restricting member includes an end edge portion extending straight in the sheet width direction on a downstream side in the sheet conveying direction. A ridge defining the leading edge part of the guide surface is a ridge extending straight in the sheet width direction, and the end edge portion of the elastic restricting member is arranged at a position shifted toward an upstream side in the sheet conveying direction from the ridge of the guide surface.

Abstract translation: 图像形成装置包括形成转印夹持部的图像承载部件和转印部件，以及用于将纸张引导到转印辊隙部分的引导部件。 引导构件包括刚性限制构件，其包括引导表面，形成在引导表面的前缘部分处的切割部分和覆盖切割部分的片状弹性限制构件。 弹性限制构件包括在片材传送方向的下游侧沿片材宽度方向直线延伸的端部边缘部分。 限定引导表面的前缘部分的脊是在片材宽度方向上直线延伸的脊，并且弹性限制部件的端部边缘部分布置在沿着片材输送方向从上游侧向上游侧移动的位置 的导向面。