公开(公告)号：US11586135B2

公开(公告)日：2023-02-21

申请号：US17675680

申请日：2022-02-18

Applicant: KYOCERA Document Solutions Inc.

Inventor： Shoko Gon

IPC: G03G15/20

Abstract: An image forming apparatus includes an image forming portion, a fixing device, an input portion, and a control portion. The fixing device includes a rotary member to be heated, a pressure-applying rotary member, a heat-applying portion, a pressure-applying mechanism, and a reference position detection mechanism. The control portion controls fixing processing, with the pressure-applying rotary member disposed at any of a plurality of pressure-applying positions and a pressure reduction position based on a type of the recording medium inputted through the input portion. The control portion performs control so that when a prescribed amount of time has elapsed or when a rotation amount of a shaft has reached a prescribed amount from timing at which a reference position detection sensor is brought to an on-state, the pressure-applying drive motor is stopped so as to dispose the pressure-applying rotary member at any of the plurality of pressure-applying positions.

公开(公告)号：US20220163911A1

公开(公告)日：2022-05-26

申请号：US17456017

申请日：2021-11-22

Applicant: KYOCERA Document Solutions Inc.

Inventor： Shoko Gon ,  Kenichi Kasama

IPC: G03G15/20

Abstract: A fixing device includes a pair of rotating members and a heating part. The pair of rotating members holds a recording medium, passes the recording medium and thermally fixes toner on the recording medium. The heating part heats one rotating member of the pair of rotating members to increases a temperature of the rotating member. The heating part is PID or PI controlled. When power consumption of an apparatus including the pair of rotating members is not higher than a predetermined value, a PID coefficient or a PI coefficient used in the PID control or the PI control is set to be smaller than when the power consumption is higher than the predetermined value.

公开(公告)号：US11281140B2

公开(公告)日：2022-03-22

申请号：US17157333

申请日：2021-01-25

Applicant: KYOCERA Document Solutions Inc.

Inventor： Shoko Gon ,  Kuniaki Nakano

IPC: G03G15/20

Abstract: A fixing device includes an endless fixing belt, a belt guide, and a frame member. The belt guide has a fastening portion, an arc portion, and a contact portion. The fastening portion is fastened to the frame member. The arc portion extends from the fastening portion while curving in an arc shape along the inner circumferential face of the fixing belt and has an elastic force acting outward in the radial direction. The contact portion extends from one end of the arc portion in the circumferential direction toward the frame member and has a counter-face facing the inner circumferential face of the arc portion. The frame member has a regulating portion that extends toward the belt guide to make surface contact with, so as to overlap, the counter-face of the contact portion.

公开(公告)号：US09921530B2

公开(公告)日：2018-03-20

申请号：US15460014

申请日：2017-03-15

Applicant: KYOCERA Document Solutions Inc.

Inventor： Shoko Gon

IPC: G03G15/20 ,  G03G15/00

CPC classification number: G03G15/2039 ,  G03G15/80

Abstract: A frequency determining portion determines a driving frequency of an induction heater. A determination processing portion determines whether or not the driving frequency determined by the frequency determining portion is within a predetermined prohibited frequency band. A frequency changing portion, when the driving frequency determined by the frequency determining portion is within the prohibited frequency band and is lower than a predetermined threshold within the prohibited frequency band, changes the driving frequency to a frequency equal to or lower than a lower boundary frequency of the prohibited frequency band, and when the driving frequency is within the prohibited frequency band and is equal to or higher than the threshold, changes the driving frequency to a frequency equal to or higher than a higher boundary frequency of the prohibited frequency band. A heating control portion drives the induction heater by the driving frequency changed by the frequency changing portion.

公开(公告)号：US09513584B2

公开(公告)日：2016-12-06

申请号：US15012228

申请日：2016-02-01

Applicant: KYOCERA Document Solutions Inc.

Inventor： Shoko Gon

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2017

Abstract: A fixing device includes a fixing member and an induction heating section. The fixing member fixes an image onto a sheet. The induction heating section inductively heats the fixing member. The induction heating section includes an annular coil and a cover. The annular coil is elongated in a direction perpendicular to a conveyance direction of the sheet. The cover has first, second, and third opening rows. The annular coil includes first and second linear sections. Both the first and second opening rows are located at a side closer to the first linear section than a center line of the annular coil in the longitudinal direction. The second opening row is located closer to the second linear section than the first opening row. The third opening row is located at a side closer to the second linear section than the center line.

Abstract translation: 定影装置包括固定部件和感应加热部。 固定构件将图像固定在片材上。 感应加热部感应加热固定部件。 感应加热部包括环形线圈和盖。 环形线圈在与片材的输送方向垂直的方向上伸长。 盖子具有第一，第二和第三开口行。 环形线圈包括第一和第二线性部分。 第一和第二开口行位于比环形线圈在纵向方向上的中心线更靠近第一线性部分的一侧。 第二开口列位于比第一开口行更靠近第二线性部分。 第三开口列位于比中心线更靠近第二线性部的一侧。

公开(公告)号：US08811850B2

公开(公告)日：2014-08-19

申请号：US14066603

申请日：2013-10-29

Applicant: KYOCERA Document Solutions Inc.

Inventor： Shinobu Ohata ,  Shoko Gon

IPC: G03G21/20 ,  G03G15/20 ,  H05B6/10

CPC classification number: G03G15/2053 ,  G03G15/2017 ,  G03G21/206 ,  H05B6/102

Abstract: A fixing device includes an auxiliary duct. The auxiliary duct is provided between a cover member attached to a coil bobbin so as to cover a magnetic core and a coil, and a core holder provided opposing to the coil bobbin, to which the magnetic core is attached. The auxiliary duct communicates with an intake hole provided at one end in a longitudinal direction of the cover member, and has opening holes overlapping with some of holder opening portions formed on the core holder. The fixing device causes air to flow into between the core holder and the coil bobbin via the auxiliary duct and the holder opening portions from the intake hole, and discharges the air warmed by heat of the coil from an exhaust hole formed at the other end of the cover member, thereby adjusting the flowing amount of air in a longitudinal direction of the coil.

Abstract translation: 定影装置包括辅助导管。 辅助管道设置在安装在线圈骨架上的盖构件以覆盖磁芯和线圈，以及与磁芯相对的线圈架上设置的芯保持器。 辅助管道与设置在盖构件的纵向方向上的一端的进气孔连通，并且具有与形成在芯保持器上的一些保持器开口部分重叠的开口孔。 固定装置使空气经由辅助管道和保持器开口部分从进气孔流入芯保持器和线圈架之间，并且从形成在另一端的排气孔排出由线圈的热量加热的空气 盖构件，从而调节沿着线圈的纵向方向的空气的流动量。