公开(公告)号：US20150055996A1

公开(公告)日：2015-02-26

申请号：US14466192

申请日：2014-08-22

Applicant: Konica Minolta, Inc.

Inventor： Hiroyuki MAEDA ,  Yoshiyuki TOSO ,  Yasuhiro SUZUKI

IPC: G03G15/00

CPC classification number: G03G15/6576 ,  G03G2215/00611 ,  G03G2215/00616

Abstract: In an image forming apparatus, a sensor section includes a sheet path through which the sheet passes in a sheet feeding direction. In the sensor section, a light source unit emits light to an irradiation area set in the sheet path. Here, the light is elongated in a main-scanning direction and has quantities of light varying according to positions in the main-scanning direction and according to positions in a height direction perpendicular to a sheet feed surface. In addition, in the sensor section, a light-receiving section receives light diffused in a predetermined diffusing direction among the light emitted from the light source and then irradiated to the sheet passing in the sheet path and outputs information representing quantities of the received light. In the image forming apparatus, a control section extracts a parameter from the information and derives an amount of curl of the sheet.

Abstract translation: 在图像形成装置中，传感器部分包括纸张通过片材进给方向的纸张路径。 在传感器部分中，光源单元向设置在片材路径中的照射区域发光。 这里，光在主扫描方向上伸长，并且具有根据主扫描方向上的位置和垂直于片材进给表面的高度方向上的位置而变化的光量。 此外，在传感器部分中，光接收部接收从光源发射的光中以预定的漫射方向漫射的光，然后照射到通过片材路径的片材，并输出表示接收光的量的信息。 在图像形成装置中，控制部从信息中提取参数，并导出纸张的卷曲量。

公开(公告)号：US20170343941A1

公开(公告)日：2017-11-30

申请号：US15605455

申请日：2017-05-25

Applicant: KONICA MINOLTA, INC.

Inventor： Hiroyuki MAEDA ,  Miho YAMANO ,  Dai SUWAMA ,  Midori SHIMOMURA

IPC: G03G15/20

CPC classification number: G03G15/2064 ,  G03G15/2028 ,  G03G15/206 ,  G03G2215/2009

Abstract: A fixing device includes a fixing roller heated to a predetermined temperature by a heater; a pressure belt in pressure contact with the fixing roller; and a pressing part which presses the pressure belt toward the fixing roller. The fixing device adopts a belt-nip system and fixes a toner image formed on a recording medium to the recording medium by heat and pressure while the recording medium is nipped and conveyed through a nip part. The nip part is formed by the fixing roller and the pressure belt and includes an adhesion nip and a separation nip. The pressing part includes a pressing member, a sheet member which covers the pressing surface of the pressing member along a conveying direction of the recording medium, and a pressing fluid which is filled at the adhesion nip between the pressing member and the sheet member.

公开(公告)号：US20170199489A1

公开(公告)日：2017-07-13

申请号：US15391759

申请日：2016-12-27

Applicant: KONICA MINOLTA, INC.

Inventor： Midori SHIMOMURA ,  Dai SUWAMA ,  Miho YAMANO ,  Hiroyuki MAEDA

IPC: G03G15/00 ,  G03G15/20

CPC classification number: G03G15/70 ,  G03G15/2028 ,  G03G15/2053 ,  G03G2215/2032

Abstract: A fixing apparatus includes: a heating member that has an outer circumferential surface to be driven in a circulative manner and heats a sheet; a heat radiation suppression member that covers a part of an outer circumferential surface of the heating member to have a predetermined gap and suppresses heat radiation, wherein the heat radiation suppression member has a movable part capable of moving to a first position and a second position more distant than the first position from a part covered by the heating member; a moving unit that moves the movable part to the first position or the second position; a jam detection unit that detects a jam of a sheet in the vicinity of the downstream side end portion of the nip part; and a control unit that controls the moving unit such that the movable part is moved from the first position to the second position.

公开(公告)号：US20150055964A1

公开(公告)日：2015-02-26

申请号：US14447823

申请日：2014-07-31

Applicant: KONICA MINOLTA, INC.

Inventor： Yoshiyuki TOSO ,  Hiroyuki MAEDA ,  Tadayasu SEKIOKA ,  Naotoshi KAWAI

IPC: G03G15/00

CPC classification number: G03G15/5062 ,  H04N1/4074 ,  H04N1/409

Abstract: In an image forming apparatus, a sensor section which the printed sheets fed from an image forming section pass through or by in a first direction one by one, irradiates each of the passing printed sheets with light elongated in a second direction different, thereby sensing densities of the each of passing printed sheets, on a pixel basis. Further, a control section integrates densities of respectively corresponding line portions in respective non-image areas of sheets of the printed sheets, based on the densities obtained by the sensor section, each of the line portion extending substantially in the first direction and including pixels on substantially a same position in the second direction, thereby obtaining integrated density values, and predicts, based on the obtained integrated density values, that a noise will occur on a printed sheet to be made by the image forming section later on.

Abstract translation: 在图像形成装置中，从图像形成部送出的打印片材经过第一方向的传感器部分，或者沿着第一方向一个接一个地照射经过的打印片材，其中每个经过的打印片材沿不同的第二方向延伸，从而感测密度 每个经过的打印的纸张，基于像素。 此外，控制部分基于由传感器部分获得的密度，分别对应于印刷片材的各个非图像区域中的相应线条部分的密度，每个线部分基本上在第一方向上延伸并且包括像素 在第二方向基本上相同的位置，从而获得积分密度值，并且基于获得的积分密度值预测稍后将由图像形成部分在印刷品上发生噪声。