公开(公告)号：US20180129149A1

公开(公告)日：2018-05-10

申请号：US15713085

申请日：2017-09-22

Applicant: KYOCERA Document Solutions Inc.

Inventor： Akifumi YAMAGUCHI

IPC: G03G15/08

CPC classification number: G03G15/0889 ,  G03G15/0812 ,  G03G15/0887 ,  G03G15/0891 ,  G03G15/0893 ,  G03G2215/0802 ,  G03G2215/0816 ,  G03G2215/0819 ,  G03G2215/083 ,  G03G2215/0833

Abstract: A stirring/conveying member has a rotary shaft rotatably supported in a powder container, a first helical blade formed on the circumferential surface of the rotary shaft and conveying powder in the axial direction by the rotation of the rotary shaft, and a second helical blade formed on the circumferential surface of the rotary shaft to overlap the forming region of the first helical blade, spiraling in the opposite phase to the first helical blade, and having a smaller radial height than the first helical blade. The first helical blade crosses the second helical blade at least at one place in one turn about the rotary shaft. At least one of the radial heights of the first and second helical blades equals zero at the intersection of the first and second helical blades.

公开(公告)号：US20180335748A1

公开(公告)日：2018-11-22

申请号：US15953039

申请日：2018-04-13

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tamotsu SHIMIZU ,  Yoshihiro YAMAGISHI ,  Akifumi YAMAGUCHI ,  Koji UNO ,  Kenichi KASAMA ,  Yuta KITABAYASHI ,  Nobuyuki HAYASHI

IPC: G03G15/00 ,  G03G5/147 ,  G03G5/00

CPC classification number: G03G21/0058 ,  G03G5/005 ,  G03G5/14704 ,  G03G15/0865 ,  G03G15/5008 ,  G03G15/5037 ,  G03G15/55 ,  G03G15/751 ,  G03G21/0011 ,  G03G21/0064 ,  G03G2221/0089

Abstract: An image forming apparatus has a photosensitive member, a charging member, an exposing device, a developing device, a transfer member, a polishing member, a driving device, a voltage applying device, a torque detector, and a control portion. The photosensitive member has a photosensitive layer and a surface protection layer formed on the surface of the photosensitive layer. The polishing member has an elastic layer on its circumferential surface, and rotates with a linear velocity difference from that of the photosensitive member. The torque detector detects the torque of the driving device. The control portion estimates an attachment condition of discharge products to the surface of the photosensitive member based on the torque of the driving device detected by the torque detector. When the torque is equal to or higher than a predetermined value, the control portion performs an image degradation suppression process.

公开(公告)号：US20140140733A1

公开(公告)日：2014-05-22

申请号：US14084416

申请日：2013-11-19

Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Tamotsu SHIMIZU ,  Shizuka OKADA ,  Takefumi YOTSUTSUJI ,  Akifumi YAMAGUCHI

IPC: G03G15/08 ,  G03G15/09

CPC classification number: G03G15/0877 ,  G03G15/0893

Abstract: In a development device, a developer carrier arranged in a housing containing a one-component developer has a circumferential surface carrying the developer. A developer conveying path includes one conveying path along the developer carrier in a first direction and another conveying path in a second direction opposite to the first direction. The developer is circulated and conveyed between the conveying paths. A developer conveying member is arranged in the one conveying path and rotationally driven to convey the developer along the first direction and to supply the developer to the developer carrier. A layer thickness adjusting member is arranged at a distance from the circumferential surface to adjust a layer thickness of the developer supplied to the developer carrier. The developer carrier has a circumferential speed Vd and the developer conveying member has a circumferential speed Vs so that a circumferential speed ratio Vd/Vs satisfies a relationship represented by 1.3≦Vd/Vs≦5.0.

Abstract translation: 在显影装置中，布置在包含单组分显影剂的壳体中的显影剂载体具有携带显影剂的圆周表面。 显影剂输送路径包括沿着第一方向沿着显影剂载体的一个输送路径和在与第一方向相反的第二方向上的另一输送路径。 显影剂在传送路径之间循环传送。 显影剂输送构件布置在一个输送路径中并旋转驱动以沿着第一方向输送显影剂，并将显影剂供应到显影剂载体。 层厚度调节构件布置成与圆周表面一段距离，以调节供应到显影剂载体的显影剂的层厚度。 显影剂载体具有圆周速度Vd，显影剂传送构件具有圆周速度Vs，使得圆周速度比Vd / Vs满足由1.3＆lt; 1lE; Vd / Vs＆nlE; 5.0表示的关系。