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公开(公告)号：US09501007B2
公开(公告)日：2016-11-22
申请号：US15008310
申请日：2016-01-27
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/2017 , G03G15/2064 , G03G2215/2045
摘要： An image forming apparatus for forming a toner image on a recording material has an image forming unit configured to form the toner image on the recording material; a fixing unit configured to fix the toner image on the recording material while heating and conveying the recording material bearing the toner image at a nip portion, the fixing unit including a heating rotation member and a roller forming the nip portion with the heating rotation member; and a voltage applying unit configured to apply a potential difference between a surface of the heating rotation member and a surface of the roller, wherein a plurality of print modes different in conveyance speed of the recording material at the nip portion are carried out, and wherein the voltage applying unit applies the potential difference smaller in a first print mode than the potential difference in a second print mode.
摘要翻译： 用于在记录材料上形成调色剂图像的图像形成装置具有被配置为在记录材料上形成调色剂图像的图像形成单元; 固定单元，被配置为在加热和传送在夹持部分承载调色剂图像的记录材料的同时将调色剂图像固定在记录材料上，所述定影单元包括加热旋转构件和与加热旋转构件形成夹持部的辊; 以及电压施加单元，被配置为施加所述加热旋转构件的表面与所述辊的表面之间的电位差，其中执行在所述夹持部处的所述记录材料的输送速度不同的多个印刷模式，并且其中 电压施加单元在第一打印模式中施加比第二打印模式中的电位差更小的电位差。
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公开(公告)号：US11029627B2
公开(公告)日：2021-06-08
申请号：US16779991
申请日：2020-02-03
IPC分类号： G03G15/20
摘要： In a fixing apparatus 200 having a heater 300 capable of selectively causing a plurality of heat generating blocks divided in a longitudinal direction of a substrate 305 to generate heat, an energization control portion 400 acquires, when performing a fixing operation, a cumulative amount of heat generation in each of a plurality of heating areas, a cumulative rotation time of a pressure roller 208, and information on a recording material that passes through a fixing nip portion, and controls energization of heat generating elements 302a and 302b on the basis of the acquired information.
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公开(公告)号：US20150346660A1
公开(公告)日：2015-12-03
申请号：US14726895
申请日：2015-06-01
发明人： Masatake Usui , Yasuharu Hirado , Tomonori Sato , Takashi Nomura , Shuji Saito , Hiroshi Kataoka
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/2028 , G03G15/2064 , G03G15/657 , G03G2215/00603 , G03G2215/2035 , G03G2215/2045
摘要： An image forming apparatus includes a fixing portion for fixing a toner image on a sheet by heating the sheet while feeding the sheet, the fixing portion including a cylindrical film, a heater contacting an inner surface of the film, a roller cooperative with the heater to form the nip between the film and the roller; a sensor for detecting a heater temperature; a feed controller for controlling sheet feeding. In image formation on a second sheet continuously after forming the image on a first sheet, the sensor detects a temperature change in a predetermined period in which the nip does not feed the sheet and which is after the first sheet passes through the nip and before the second sheet reaches the nip, and the feed controller changes a feeding interval between the first and second sheets in accordance with the temperature change.
摘要翻译： 图像形成装置包括：固定部分，用于通过在输送片材的同时加热片材来将调色剂图像定影在片材上，固定部分包括圆柱形膜，与膜的内表面接触的加热器，与加热器协作的辊 形成膜和辊之间的辊隙; 用于检测加热器温度的传感器; 用于控制片材进给的进给控制器。 在第一片材上形成图像之后连续地在第二片材上形成图像时，传感器检测在夹持部未进给片材并且在第一片材通过辊隙之后的预定时间段内的温度变化， 第二片材到达辊隙，并且进给控制器根据温度变化改变第一和第二片材之间的进给间隔。
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公开(公告)号：US11320768B2
公开(公告)日：2022-05-03
申请号：US17150621
申请日：2021-01-15
发明人： Hiroshi Kataoka
IPC分类号： G03G15/20
摘要： An image heating apparatus includes an image heating portion including a heater, a tubular film having an inner surface in contact with the heater, and a pressure member that is in contact with the outer surface of the film and forms a nip portion for conveying a recording material between the outer surface and the pressure member. The image heating portion heats an unfixed toner image on the recording material by the heater. A temperature detection portion detects the temperature of the heater. A control portion controls electric power to the heater such that the temperature detected by the temperature detection portion is maintained at a predetermined control target temperature. An obtainment portion obtains image information for forming the unfixed toner image. The control target temperature is set, based on the image information, for each of a plurality of regions defined by dividing the recording material in the conveying direction.
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公开(公告)号：US10162303B2
公开(公告)日：2018-12-25
申请号：US15008606
申请日：2016-01-28
IPC分类号： G03G21/16
摘要： A fixing apparatus fixes a toner image on a recording material by conveying and heating the recording material at a nip portion, and includes a first rotating member, a second rotating member configured to form the nip portion with the first rotating member, the first and second rotating members being arranged such that rotation of the second rotating member causes rotation of the first rotating member, a frame configured to support the second rotating member, so as to be rotatable and an opening and closing part arranged to open and close relative to the frame on the downstream side of the nip portion in the conveyance direction of the recoding material, the opening and closing part having a duct through which air flows.
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6.发明授权Fixing device with back-up member and nip forming member including a projecting portion projecting toward the back-up member 有权具有支撑构件和夹持形成构件的固定装置包括朝向支撑构件突出的突出部分公开(公告)号：US09477191B2
公开(公告)日：2016-10-25
申请号：US15001489
申请日：2016-01-20
发明人： Noriaki Sato , Yasutaka Yagi , Hiroshi Kataoka , Eiji Uekawa , Keisuke Mochizuki , Shuji Saito , Naoto Tsuchihashi
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G15/2053
摘要： A fixing device includes: a cylindrical film; a nip forming member; and a back-up member for forming a nip. The nip forming member includes a projected portion. The projection amount of the projected portion is smaller in an end portion region positioned at an end portion of the projected portion with respect to a generatrix direction of the film than in a central region positioned at a central portion of the projected portion with respect to the generatrix direction, at least a part of the end portion region being inside a feeding region of a maximum-sized recording material usable in the fixing device. With respect to the recording material feeding direction, the width of the part of the projected portion inside the nip is broader in the end portion region than in the central region.
摘要翻译： 定影装置包括：圆柱形膜; 辊隙形成构件; 以及用于形成辊隙的支撑构件。 辊隙形成构件包括突出部分。 突出部分的突出量在位于突出部分的端部相对于膜的母线方向的端部区域中小于在位于突出部分的中心部分的中心区域相对于 母线方向，端部区域的至少一部分位于可用于定影装置的最大尺寸记录材料的进给区域的内部。 相对于记录材料供给方向，辊隙内的突出部分的部分的宽度在端部区域比在中心区域宽。
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公开(公告)号：US09261826B2
公开(公告)日：2016-02-16
申请号：US14737901
申请日：2015-06-12
发明人： Hiroshi Kataoka , Shuji Saito
IPC分类号： G03G15/20
CPC分类号： G03G15/2028 , G03G15/2039 , G03G15/2042 , G03G15/6564 , G03G2215/00468 , G03G2215/00759 , G03G2215/2035
摘要： An acquisition portion acquires a rate of a size of a toner image being formed in a predetermined area on a recording material to a size of the predetermined area, in a consecutive print job, a control portion sets a longer conveyance interval between a preceding recording material and a subsequent recording material when the rate of the subsequent recording material exceeds a threshold than when the rate of the subsequent recording material does not exceed the threshold, and the predetermined area on a trailing end side of the recording material with respect to a center of the recording material in a recording material conveying direction is larger than the predetermined area on a leading end side of the recording material with respect to the center of the recording material, or the predetermined area is only on the trailing end side of the recording material.
摘要翻译： 获取部分获取在记录材料上的预定区域中形成的调色剂图像的大小与所述预定区域的尺寸的比率，在连续打印作业中，控制部分设置在前一记录材料之间较长的传送间隔 以及随后的记录材料的速率比后续记录材料的速率不超过阈值时的后续记录材料的速度以及相对于记录材料的中心的记录材料的后端侧的预定区域 记录材料传送方向上的记录材料大于记录材料的前端侧相对于记录材料的中心的预定面积，或者预定区域仅在记录材料的后端侧。
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公开(公告)号：US11902475B2
公开(公告)日：2024-02-13
申请号：US17819192
申请日：2022-08-11
CPC分类号： H04N1/00029 , H04N1/00005 , H04N1/00039 , H04N1/00045 , H04N1/00286 , H04N1/00395 , H04N1/32641 , H04N1/6044
摘要： A diagnostic system may comprise an image forming apparatus that forms a diagnostic image on a sheet and an image capturing apparatus that captures an image of the sheet on which the diagnostic image is formed and which has been discharged from the image forming apparatus, and outputs the image captured as a sheet image. The image capturing apparatus may make a diagnosis for a component of the image forming apparatus based on a position of an image deficiency in the sheet image, and output a diagnosis result for the component of the image forming apparatus.
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公开(公告)号：US20220206417A1
公开(公告)日：2022-06-30
申请号：US17699639
申请日：2022-03-21
发明人： Hiroshi Kataoka
IPC分类号： G03G15/20
摘要： An image heating apparatus includes an image heating portion including a heater, a tubular film having an inner surface in contact with the heater, and a pressure member that is in contact with the outer surface of the film and forms a nip portion for conveying a recording material between the outer surface and the pressure member. The image heating portion heats an unfixed toner image on the recording material by the heater. A temperature detection portion detects the temperature of the heater. A control portion controls electric power to the heater such that the temperature detected by the temperature detection portion is maintained at a predetermined control target temperature. An obtainment portion obtains image information for forming the unfixed toner image. The control target temperature is set, based on the image information, for each of a plurality of regions defined by dividing the recording material in the conveying direction.
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公开(公告)号：US20210132529A1
公开(公告)日：2021-05-06
申请号：US17150621
申请日：2021-01-15
发明人： Hiroshi Kataoka
IPC分类号： G03G15/20
摘要： An image heating apparatus includes an image heating portion including a heater, a tubular film having an inner surface in contact with the heater, and a pressure member that is in contact with the outer surface of the film and forms a nip portion for conveying a recording material between the outer surface and the pressure member. The image heating portion heats an unfixed toner image on the recording material by the heater. A temperature detection portion detects the temperature of the heater. A control portion controls electric power to the heater such that the temperature detected by the temperature detection portion is maintained at a predetermined control target temperature. An obtainment portion obtains image information for forming the unfixed toner image. The control target temperature is set, based on the image information, for each of a plurality of regions defined by dividing the recording material in the conveying direction.
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