公开(公告)号：US07257340B2

公开(公告)日：2007-08-14

申请号：US11348355

申请日：2006-02-07

申请人： Atsushi Iwasaki ,  Masafumi Maeda ,  Taro Ishifune

发明人： Atsushi Iwasaki ,  Masafumi Maeda ,  Taro Ishifune

IPC分类号： G03G15/16

CPC分类号： G03G15/1675 ,  G03G2215/1614

摘要： To prevent jamming with small-sized print materials without disturbing an image located at a trailing end of a print material, an image forming apparatus includes a photosensitive drum that carries a toner image, a transfer device which can apply a transfer bias to the transfer roller to transfer the toner image to a print material passing through the transfer nip portion, and a control device for controlling a transfer bias set value set in order to apply a predetermined transfer bias to the transfer roller. The control device switches a first transfer bias set value to a second bias set value smaller than the first transfer bias set value while the print material is passing through the transfer nip portion, in order to change the transfer bias applied to the transfer roller.

摘要翻译： 为了防止小尺寸打印材料的卡纸而不干扰位于打印材料尾端的图像，图像形成装置包括承载调色剂图像的感光鼓，可向转印辊施加转印偏压的转印装置 将调色剂图像转印到通过转印辊隙部分的印刷材料上;以及控制装置，用于控制设定的转印偏压设定值，以便向转印辊施加预定的转印偏压。 当打印材料通过转印夹持部分时，控制装置将第一转印偏压设定值切换到小于第一转印偏压设定值的第二偏置设定值，以便改变施加到转印辊上的转印偏压。

公开(公告)号：US07058322B2

公开(公告)日：2006-06-06

申请号：US10805231

申请日：2004-03-22

申请人： Atsushi Iwasaki ,  Masafumi Maeda ,  Taro Ishifune

发明人： Atsushi Iwasaki ,  Masafumi Maeda ,  Taro Ishifune

IPC分类号： G03G15/00

CPC分类号： G03G15/1675 ,  G03G2215/1614

摘要： To prevent jamming with small-sized print materials without disturbing an image located at a trailing end of a print material, an image forming apparatus includes a photosensitive drum that carries a toner image, a transfer device which can apply a transfer bias to the transfer roller to transfer the toner image to a print material passing through the transfer nip portion, and a control device for controlling a transfer bias set value set in order to apply a predetermined transfer bias to the transfer roller. The control device switches a first transfer bias set value to a second bias set value smaller than the first transfer bias set value while the print material is passing through the transfer nip portion, in order to change the transfer bias applied to the transfer roller.

摘要翻译： 为了防止小尺寸打印材料的卡纸而不干扰位于打印材料尾端的图像，图像形成装置包括承载调色剂图像的感光鼓，可向转印辊施加转印偏压的转印装置 将调色剂图像转印到通过转印辊隙部分的印刷材料上;以及控制装置，用于控制设定的转印偏压设定值，以便向转印辊施加预定的转印偏压。 当打印材料通过转印夹持部分时，控制装置将第一转印偏压设定值切换到小于第一转印偏压设定值的第二偏置设定值，以便改变施加到转印辊上的转印偏压。

公开(公告)号：US20060127115A1

公开(公告)日：2006-06-15

申请号：US11348355

申请日：2006-02-07

申请人： Atsushi Iwasaki ,  Masafumi Maeda ,  Taro Ishifune

发明人： Atsushi Iwasaki ,  Masafumi Maeda ,  Taro Ishifune

IPC分类号： G03G15/16

CPC分类号： G03G15/1675 ,  G03G2215/1614

摘要： It is an object of the preset invention to prevent jamming with small-sized print materials without disturbing an image located at a trailing end of a print material. An image forming apparatus has a photosensitive drum that carries a toner image, a transfer device which can apply a transfer bias to the transfer roller to transfer the toner image to a print material passing through the transfer nip portion, and a control device for controlling a transfer bias set value set in order to apply a predetermined transfer bias to the transfer roller. The control device switches a first transfer bias set value to a second bias set value smaller than the first transfer bias set value while the print material is passing through the transfer nip portion, in order to change the transfer bias applied to the transfer roller.

摘要翻译： 本发明的一个目的是防止小尺寸印刷材料的干扰，而不会影响位于打印材料后端的图像。 图像形成装置具有携带调色剂图像的感光鼓，可以向转印辊施加转印偏压以将调色剂图像转印到通过转印辊隙部分的印刷材料的转印装置，以及控制装置 设定转印偏压设定值以便向转印辊施加预定的转印偏压。 当打印材料通过转印夹持部分时，控制装置将第一转印偏压设定值切换到小于第一转印偏压设定值的第二偏置设定值，以便改变施加到转印辊上的转印偏压。

公开(公告)号：US07218873B2

公开(公告)日：2007-05-15

申请号：US10806197

申请日：2004-03-23

申请人： Atsushi Iwasaki ,  Akira Hayakawa ,  Masaru Tsukada ,  Taro Ishifune

发明人： Atsushi Iwasaki ,  Akira Hayakawa ,  Masaru Tsukada ,  Taro Ishifune

IPC分类号： G03G15/20

CPC分类号： G03G15/657 ,  G03G15/2039 ,  G03G2215/00772

摘要： An image generating apparatus is provided which can maximize the throughput without causing thermal damage of the fusing components. It determines a sub-thermistor temperature threshold value for switching small size paper feed intervals in response to a sub-thermistor initial temperature. It supplies a heating body with current for heating, and starts feeding recording mediums at the feed interval determined by a feed interval initial value. It makes a successively conveyed paper count. Every time the successively conveyed paper count reaches a paper count threshold value, it performs the switching control of the sub-thermistor temperature threshold value. If the sub-thermistor temperature exceeds the threshold value while the recording medium is passing through the fusing apparatus, it carries out the switching control of the feed intervals. In another mode, it prevents the extension of the paper feed interval of the paper conveyance during a specified paper count α.

摘要翻译： 提供一种图像产生装置，其可以使得生产量最大化而不引起熔断部件的热损伤。 它决定了一个亚热敏电阻温度阈值，用于响应于亚热敏电阻初始温度切换小尺寸进纸间隔。 它供给具有用于加热的电流的加热体，并且以由进料间隔初始值确定的进料间隔开始进料记录介质。 它连续传送纸张数量。 每次连续传送的纸张计数达到纸张计数阈值时，执行副热敏电阻温度阈值的切换控制。 当记录介质通过定影装置时，如果亚热敏电阻温度超过阈值，则执行进给间隔的切换控制。 在另一种模式下，它可以防止在指定的纸张计数α期间延长纸张输送的送纸间隔。

公开(公告)号：US20080031648A1

公开(公告)日：2008-02-07

申请号：US11856986

申请日：2007-09-18

申请人： Atsushi Iwasaki ,  Akira Hayakawa ,  Masaru Tsukada ,  Taro Ishifune

发明人： Atsushi Iwasaki ,  Akira Hayakawa ,  Masaru Tsukada ,  Taro Ishifune

IPC分类号： G03G15/20

CPC分类号： G03G15/657 ,  G03G15/2039 ,  G03G2215/00772

摘要： An image generating apparatus is provided which can maximize the throughput without causing thermal damage of the fusing components. It determines a sub-thermistor temperature threshold value for switching small size paper feed intervals in response to a sub-thermistor initial temperature. It supplies a heating body with current for heating, and starts feeding recording mediums at the feed interval determined by a feed interval initial value. It makes a successively conveyed paper count. Every time the successively conveyed paper count reaches a paper count threshold value, it performs the switching control of the sub-thermistor temperature threshold value. If the sub-thermistor temperature exceeds the threshold value while the recording medium is passing through the fusing apparatus, it carries out the switching control of the feed intervals. In another mode, it prevents the extension of the paper feed interval of the paper conveyance during a specified paper count α.

摘要翻译： 提供一种图像产生装置，其可以使得生产量最大化而不引起熔断部件的热损伤。 它决定了一个亚热敏电阻温度阈值，用于响应于亚热敏电阻初始温度切换小尺寸进纸间隔。 它供给具有用于加热的电流的加热体，并且以由进料间隔初始值确定的进料间隔开始进料记录介质。 它连续传送纸张数量。 每次连续传送的纸张计数达到纸张计数阈值时，执行副热敏电阻温度阈值的切换控制。 当记录介质通过定影装置时，如果亚热敏电阻温度超过阈值，则执行进给间隔的切换控制。 在另一种模式下，它可以防止在指定的纸张计数α期间延长纸张输送的送纸间隔。

公开(公告)号：US20070059008A1

公开(公告)日：2007-03-15

申请号：US11556774

申请日：2006-11-06

申请人： Atsushi Iwasaki ,  Akira Hayakawa ,  Masaru Tsukada ,  Taro Ishifune

发明人： Atsushi Iwasaki ,  Akira Hayakawa ,  Masaru Tsukada ,  Taro Ishifune

IPC分类号： G03G15/20

CPC分类号： G03G15/657 ,  G03G15/2039 ,  G03G2215/00772

摘要： An image generating apparatus is provided which can maximize the throughput without causing thermal damage of the fusing components. It determines a sub-thermistor temperature threshold value for switching small size paper feed intervals in response to a sub-thermistor initial temperature. It supplies a heating body with current for heating, and starts feeding recording mediums at the feed interval determined by a feed interval initial value. It makes a successively conveyed paper count. Every time the successively conveyed paper count reaches a paper count threshold value, it performs the switching control of the sub-thermistor temperature threshold value. If the sub-thermistor temperature exceeds the threshold value while the recording medium is passing through the fusing apparatus, it carries out the switching control of the feed intervals. In another mode, it prevents the extension of the paper feed interval of the paper conveyance during a specified paper count α.

摘要翻译： 提供一种图像产生装置，其可以使得生产量最大化而不引起熔断部件的热损伤。 它决定了一个亚热敏电阻温度阈值，用于响应于亚热敏电阻初始温度切换小尺寸进纸间隔。 它供给具有用于加热的电流的加热体，并且以由进料间隔初始值确定的进料间隔开始进料记录介质。 它连续传送纸张数量。 每次连续传送的纸张计数达到纸张计数阈值时，执行副热敏电阻温度阈值的切换控制。 当记录介质通过定影装置时，如果亚热敏电阻温度超过阈值，则执行进给间隔的切换控制。 在另一种模式下，它可以防止在指定的纸张计数α期间延长纸张输送的送纸间隔。

公开(公告)号：US20060045589A1

公开(公告)日：2006-03-02

申请号：US11213991

申请日：2005-08-30

申请人： Atsushi Iwasaki ,  Hiroaki Sakai ,  Akira Kato ,  Tomoyuki Makihira ,  Masafumi Maeda

发明人： Atsushi Iwasaki ,  Hiroaki Sakai ,  Akira Kato ,  Tomoyuki Makihira ,  Masafumi Maeda

IPC分类号： G03G15/20

CPC分类号： G03G15/2042

摘要： The image fixing apparatus includes a heater having a heat generating resistor on a substrate, a heater holder for holding said heater, and a backup roller for forming a nip portion in cooperation with said heater, wherein said heater holder has, in a direction along a short side of said heater, a contact area facing said resistor forming area and coming into contact with said heater, and non-contact areas provided on both sides of the contact area and not coming into contact with said heater, and the contact area has a width equal to or larger than the resistor forming area. With this configuration, it is possible to provide the image fixing apparatus capable of restraining a stress applied to the heater and an image heating apparatus capable of restraining a rise in temperature of a sheet non-feeding portion.

摘要翻译： 图像定影装置包括在基板上具有发热电阻器的加热器，用于保持加热器的加热器保持器和与所述加热器协作形成夹持部分的支承辊，其中所述加热器保持器沿着沿着 所述加热器的短边，面对所述电阻器形成区域并与所述加热器接触的接触区域和设置在接触区域两侧并且不与所述加热器接触的非接触区域，并且接触区域具有 宽度等于或大于电阻器形成区域。 利用这种结构，可以提供能够抑制施加于加热器的应力的图像定影装置和能够抑制片材非进给部分的温度上升的图像加热装置。

公开(公告)号：US07469120B2

公开(公告)日：2008-12-23

申请号：US11531893

申请日：2006-09-14

申请人： Atsushi Iwasaki ,  Masafumi Maeda

发明人： Atsushi Iwasaki ,  Masafumi Maeda

IPC分类号： G03G15/20

CPC分类号： G03G15/2028 ,  G03G2215/2016 ,  G03G2215/2035

摘要： The image heating apparatus includes a cylindrical film, a heating member, and a drive roller, wherein a recording material bearing an image is heated while the recording material is bound and conveyed by the nip portion, and a distance between a contact position between the film and the recording material and a contact position which the film and the drive roller is equal to or less than 3.5 mm over a longitudinal direction of the nip portion, and a line formed by connecting positions at which said film is separated in the longitudinal direction of the nip portion from the recording material in the conveyance direction has an arc shape. Thus a heating process can be executed while suppressing creases in the recording material and a density loss in the image formed on the recording material.

摘要翻译： 图像加热装置包括圆柱形膜，加热构件和驱动辊，其中在记录材料通过夹持部分结合并传送的同时加热承载图像的记录材料，并且膜之间的接触位置之间的距离 以及所述记录材料和所述胶片和所述驱动辊在所述夹持部的纵向方向上等于或小于3.5mm的接触位置，以及通过将所述膜沿纵向方向分离的位置形成的线 来自记录材料的输送方向的压合部具有弧形。 因此，可以在抑制记录材料的折痕和形成在记录材料上的图像中的密度损失的同时执行加热处理。

公开(公告)号：US07283145B2

公开(公告)日：2007-10-16

申请号：US11154545

申请日：2005-06-17

申请人： Akira Kato ,  Hiroaki Sakai ,  Masafumi Maeda ,  Seietsu Miura ,  Hiroshi Takami ,  Tomoyuki Makihira ,  Atsushi Iwasaki

发明人： Akira Kato ,  Hiroaki Sakai ,  Masafumi Maeda ,  Seietsu Miura ,  Hiroshi Takami ,  Tomoyuki Makihira ,  Atsushi Iwasaki

IPC分类号： G03G15/20

CPC分类号： B41J11/002 ,  G03G15/2042 ,  G03G2215/2035

摘要： The n image heating apparatus for heating an image formed on a recording material, includes a heater including a substrate, and plural heat generating resistors formed on the substrate along a longitudinal direction thereof, and plural switching elements connected electrically between a power source and the plural heat generating resistors, wherein the plural heat generating resistors include at least two first heat generating resistors driven by a first switching element and at least a second heat generating resistor driven by a second switching element, and the second heat generating resistor is provided between the at least two first heat generating resistors in a direction of a shorter side of the substrate. In this manner there can be provided an image heating apparatus with a heater of an excellent durability, and a heater adapted for use in such apparatus.

摘要翻译： 用于对形成在记录材料上的图像进行加热的n图像加热装置包括：加热器，包括基板;沿着其长度方向在基板上形成的多个发热电阻;以及多个在电源和多个电源之间电连接的开关元件 发热电阻器，其中所述多个发热电阻器包括由第一开关元件驱动的至少两个第一发热电阻器和由第二开关元件驱动的至少第二发热电阻器，并且所述第二发热电阻器设置在所述第二发热电阻器之间 在基板的短边方向上的至少两个第一发热电阻体。 以这种方式，可以提供具有耐久性优异的加热器的图像加热装置和适用于这种装置的加热器。

公开(公告)号：US20070065191A1

公开(公告)日：2007-03-22

申请号：US11531893

申请日：2006-09-14

申请人： Atsushi Iwasaki ,  Masafumi Maeda

发明人： Atsushi Iwasaki ,  Masafumi Maeda

IPC分类号： G03G15/20

CPC分类号： G03G15/2028 ,  G03G2215/2016 ,  G03G2215/2035

摘要： The image heating apparatus includes a cylindrical film, a heating member, and a drive roller, wherein a recording material bearing an image is heated while the recording material is bound and conveyed by the nip portion, and a distance between a contact position between the film and the recording material and a contact position which the film and the drive roller is equal to or less than 3.5 mm over a longitudinal direction of the nip portion, and a line formed by connecting positions at which said film is separated in the longitudinal direction of the nip portion from the recording material in the conveyance direction has an arc shape. Thus a heating process can be executed while suppressing creases in the recording material and a density loss in the image formed on the recording material.

摘要翻译： 图像加热装置包括圆柱形膜，加热构件和驱动辊，其中在记录材料通过夹持部分结合并传送的同时加热承载图像的记录材料，并且膜之间的接触位置之间的距离 以及所述记录材料和所述胶片和所述驱动辊在所述夹持部的纵向方向上等于或小于3.5mm的接触位置，以及通过将所述膜沿纵向方向分离的位置形成的线 来自记录材料的输送方向的压合部具有弧形。 因此，可以在抑制记录材料的折痕和形成在记录材料上的图像中的密度损失的同时执行加热处理。