公开(公告)号：US20120148286A1

公开(公告)日：2012-06-14

申请号：US13304926

申请日：2011-11-28

申请人： Masahide Hirai ,  Tomoaki Nakai ,  Yasutaka Yagi

发明人： Masahide Hirai ,  Tomoaki Nakai ,  Yasutaka Yagi

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： G03G15/161 ,  G03G2215/0129 ,  G03G2215/1661

摘要： In an image forming apparatus, a control unit is capable of carrying out a cleaning mode with a first step of allowing an image forming unit to form, on an image bearing member, a cleaning toner image with a length according to a length of a feeding member or conveying member in a direction orthogonal to a conveyance direction of the recording material, a second step of moving the cleaning toner image from the image bearing member to a transfer member, and a third step of moving the cleaning toner image from the transfer member to the image bearing member. This allows the transfer member to be efficiently cleaned, providing appropriate images prevented from suffering a transfer failure.

摘要翻译： 在图像形成装置中，控制单元能够执行清洁模式，第一步骤允许图像形成单元在图像承载部件上形成具有根据进给长度的长度的清洁调色剂图像 构件或输送构件，沿与记录材料的输送方向正交的方向，将清洁调色剂图像从图像承载构件移动到转印构件的第二步骤;以及第三步骤，将清洁调色剂图像从转印构件 到图像承载部件。 这样可以有效地清洁转印部件，从而提供适当的图像，防止转印失败。

公开(公告)号：US20100080597A1

公开(公告)日：2010-04-01

申请号：US12565926

申请日：2009-09-24

申请人： Hiroyuki Seki ,  Yoshiro Saito ,  Kazuhiro Funatani ,  Masahide Hirai

发明人： Hiroyuki Seki ,  Yoshiro Saito ,  Kazuhiro Funatani ,  Masahide Hirai

IPC分类号： G03G15/16 ,  G03G15/01

CPC分类号： G03G15/0194 ,  G03G15/0136 ,  G03G2215/0119 ,  G03G2215/0193 ,  G03G2215/0196

摘要： An image forming apparatus includes a transfer roller that can be separated from an intermediate transfer belt. When an operational mode is switched from a multicolor mode to a mono-color mode, the image forming apparatus changes a rotational speed of the intermediate transfer belt to a level slower than a rotational speed of the intermediate transfer belt to be set in the multicolor mode to transfer a toner image to the intermediate transfer belt, then separates a first transfer member from the intermediate transfer belt, and after the first transfer member is separated from the intermediate transfer belt, the image forming apparatus increases the rotational speed of the intermediate transfer belt to a rotational speed to be set in the mono-color mode to transfer the toner image to the intermediate transfer belt.

摘要翻译： 图像形成装置包括可以与中间转印带分离的转印辊。 当操作模式从多色模式切换到单色模式时，图像形成装置将中间转印带的旋转速度改变到比要设置为多色模式的中间转印带的旋转速度慢的水平 将调色剂图像转印到中间转印带上，然后将第一转印部件与中间转印带分离，并且在第一转印部件与中间转印带分离之后，图像形成装置增加中间转印带的转速 到以单色模式设置的转速以将调色剂图像转印到中间转印带。

公开(公告)号：US20090296147A1

公开(公告)日：2009-12-03

申请号：US12470608

申请日：2009-05-22

申请人： Tatsuya Kinukawa ,  Hitoshi Furukawa ,  Takao Kume ,  Kazuhiro Funatani ,  Masahide Hirai ,  Yoshiro Saito ,  Tomoaki Nakai

发明人： Tatsuya Kinukawa ,  Hitoshi Furukawa ,  Takao Kume ,  Kazuhiro Funatani ,  Masahide Hirai ,  Yoshiro Saito ,  Tomoaki Nakai

IPC分类号： G06F15/00

CPC分类号： G03G15/5058 ,  G03G15/0131 ,  G03G15/1605 ,  G03G15/5054 ,  G03G2215/00059 ,  G03G2215/00063

摘要： There is provided an image forming apparatus which shortens the time taken for circumference detection and measures the circumference at high precision without obstructing downsizing of the apparatus. To accomplish this, the image forming apparatus detects, at an arbitrary timing, the physical pattern of the image-formed surface of a rotation member that changes over time. In the second round, the image forming apparatus detects the second pattern at a timing a predetermined time after the arbitrary timing. By using the detected patterns, the image forming apparatus obtains information associated with the circumference of the rotation member.

摘要翻译： 提供了一种图像形成装置，其缩短了圆周检测所用的时间，并且高精度地测量圆周，而不会妨碍装置的小型化。 为了实现这一点，图像形成装置在任意定时检测随时间变化的旋转构件的图像形成表面的物理图案。 在第二轮中，图像形成装置在任意定时之后的预定时间的定时检测第二图案。 通过使用检测到的图案，图像形成装置获得与旋转构件的圆周相关联的信息。

公开(公告)号：US06518546B2

公开(公告)日：2003-02-11

申请号：US09899023

申请日：2001-07-06

申请人： Yasumasa Otsuka ,  Takashi Soya ,  Ken Murooka ,  Masahide Hirai

发明人： Yasumasa Otsuka ,  Takashi Soya ,  Ken Murooka ,  Masahide Hirai

IPC分类号： G03G1520

CPC分类号： G03G15/2053 ,  H05B3/0095

摘要： This specification discloses a heater comprising an electrically conductive substrate, a first electrically insulating layer formed on the electrically conductive substrate, a heat generating resistor formed on the first electrically insulating layer, and a second electrically insulating layer formed on the heat generating resistor, wherein when the glass transition temperature of the first electrically insulating layer is defined as T1 and the glass transition temperature of the heat generating resistor is defined as T2 and the glass transition temperature of the second electrically insulating layer is defined as T3, T1, T2 and T3 have the relation that T1>T3≧T2 or T1>T2≧T3. The specification also discloses an image heating apparatus using such heater.

公开(公告)号：US08594525B2

公开(公告)日：2013-11-26

申请号：US13304926

申请日：2011-11-28

申请人： Masahide Hirai ,  Tomoaki Nakai ,  Yasutaka Yagi

发明人： Masahide Hirai ,  Tomoaki Nakai ,  Yasutaka Yagi

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： G03G15/161 ,  G03G2215/0129 ,  G03G2215/1661

摘要： In an image forming apparatus, a control unit is capable of carrying out a cleaning mode with a first step of allowing an image forming unit to form, on an image bearing member, a cleaning toner image with a length according to a length of a feeding member or conveying member in a direction orthogonal to a conveyance direction of the recording material, a second step of moving the cleaning toner image from the image bearing member to a transfer member, and a third step of moving the cleaning toner image from the transfer member to the image bearing member.

摘要翻译： 在图像形成装置中，控制单元能够执行清洁模式，第一步骤允许图像形成单元在图像承载部件上形成具有根据进给长度的长度的清洁调色剂图像 构件或输送构件，沿与记录材料的输送方向正交的方向，将清洁调色剂图像从图像承载构件移动到转印构件的第二步骤;以及第三步骤，将清洁调色剂图像从转印构件 到图像承载部件。

公开(公告)号：US20130045021A1

公开(公告)日：2013-02-21

申请号：US13569512

申请日：2012-08-08

申请人： Mahito Yoshioka ,  Satoru Izawa ,  Masahide Hirai ,  Munehito Kurata

发明人： Mahito Yoshioka ,  Satoru Izawa ,  Masahide Hirai ,  Munehito Kurata

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/5041 ,  G03G15/5058 ,  G03G15/556 ,  G03G2215/00037

摘要： The image forming apparatus includes an image processing section that converts image data into pixel data, an image forming section that forms a toner image based on the pixel data, and a fixing section that fixes the toner image to the recording material by heating the recording material with the toner image formed thereon while conveying the recording material through a nip portion, wherein the image processing section divides the pixel data corresponding to one recording material into a plurality of areas each formed of a predetermined number of pixels and acquires density information on some of the pixels within each of the areas as representative values, wherein the fixing section carries out a process of fixing the toner image for which the density information has been acquired, under a fixing condition according to a maximum value of the representative values.

摘要翻译： 图像形成装置包括将图像数据转换为像素数据的图像处理部分，基于像素数据形成调色剂图像的图像形成部分和通过加热记录材料将调色剂图像定影到记录材料的固定部分 其中形成在其上的调色剂图像，同时通过辊隙部分传送记录材料，其中图像处理部分将与一个记录材料相对应的像素数据分成由预定数量的像素形成的多个区域，并获取关于某些 每个区域内的像素作为代表值，其中固定部分根据代表值的最大值在固定条件下执行固定已经获取了浓度信息的调色剂图像的处理。

公开(公告)号：US08185003B2

公开(公告)日：2012-05-22

申请号：US12470628

申请日：2009-05-22

申请人： Masahide Hirai ,  Yoshiro Saito ,  Kazuhiro Funatani ,  Hiroyuki Seki ,  Tatsuya Kinukawa ,  Yasutaka Yagi

发明人： Masahide Hirai ,  Yoshiro Saito ,  Kazuhiro Funatani ,  Hiroyuki Seki ,  Tatsuya Kinukawa ,  Yasutaka Yagi

IPC分类号： G03G15/00

CPC分类号： G03G15/1605 ,  G03G15/0131 ,  G03G15/161 ,  G03G15/5058 ,  G03G2215/00059 ,  G03G2215/1661

摘要： There is provided an image forming apparatus including a rotation member used for image forming and a detector for detecting light from the rotation member. First waveform data of an image-formed surface used to form an image on the rotation member is acquired by the detector. Second waveform data of the image-formed surface used to form an image on the rotation member is acquired. The second waveform data includes at least part of a detected section of the first waveform data. Information on the actual circumference of the rotation member is calculated based on matching between the acquired first and second waveform data. The acquired first waveform data and second waveform data are compared to determine whether or not to use the calculated information on the circumference. When it is determined not to use the calculated information on the circumference, information on the circumference of the rotation member is recalculated.

摘要翻译： 提供了一种图像形成装置，包括用于图像形成的旋转构件和用于检测来自旋转构件的光的检测器。 用于在旋转构件上形成图像的图像形成表面的第一波形数据由检测器获取。 获取用于在旋转构件上形成图像的图像形成表面的第二波形数据。 第二波形数据包括第一波形数据的检测部分的至少一部分。 基于所获取的第一和第二波形数据之间的匹配来计算关于旋转构件的实际圆周的信息。 比较所获取的第一波形数据和第二波形数据，以确定是否在圆周上使用所计算的信息。 当确定不在周长上使用计算的信息时，重新计算旋转构件的圆周上的信息。

公开(公告)号：US20120099881A1

公开(公告)日：2012-04-26

申请号：US13339137

申请日：2011-12-28

申请人： Hiroyuki Seki ,  Yoshiro Saito ,  Kazuhiro Funatani ,  Masahide Hirai

发明人： Hiroyuki Seki ,  Yoshiro Saito ,  Kazuhiro Funatani ,  Masahide Hirai

IPC分类号： G03G15/16

CPC分类号： G03G15/0194 ,  G03G15/0136 ,  G03G2215/0119 ,  G03G2215/0193 ,  G03G2215/0196

摘要： An image forming apparatus includes a transfer roller that can be separated from an intermediate transfer belt. When an operational mode is switched from a multicolor mode to a mono-color mode, the image forming apparatus changes a rotational speed of the intermediate transfer belt to a level slower than a rotational speed of the intermediate transfer belt to be set in the multicolor mode to transfer a toner image to the intermediate transfer belt, then separates a first transfer member from the intermediate transfer belt, and after the first transfer member is separated from the intermediate transfer belt, the image forming apparatus increases the rotational speed of the intermediate transfer belt to a rotational speed to be set in the mono-color mode to transfer the toner image to the intermediate transfer belt.

摘要翻译： 图像形成装置包括可以与中间转印带分离的转印辊。 当操作模式从多色模式切换到单色模式时，图像形成装置将中间转印带的旋转速度改变到比要设置为多色模式的中间转印带的旋转速度慢的水平 将调色剂图像转印到中间转印带上，然后将第一转印部件与中间转印带分离，并且在第一转印部件与中间转印带分离之后，图像形成装置增加中间转印带的转速 到以单色模式设置的转速以将调色剂图像转印到中间转印带。

公开(公告)号：US07546075B2

公开(公告)日：2009-06-09

申请号：US11312835

申请日：2005-12-21

申请人： Masahide Hirai ,  Noriaki Egawa

发明人： Masahide Hirai ,  Noriaki Egawa

IPC分类号： G03G15/01 ,  G03G15/00

CPC分类号： G03G15/1685 ,  G03G15/0131 ,  G03G15/162 ,  G03G2215/00059

摘要： A belt includes a surface layer and an underlayer. An interface between the surface layer and the underlayer is roughened to irregularly reflect incident light.

摘要翻译： 皮带包括表层和底层。 表面层和底层之间的界面被粗糙化以不规则地反射入射光。

公开(公告)号：US06175699B1

公开(公告)日：2001-01-16

申请号：US09317161

申请日：1999-05-24

申请人： Akira Kato ,  Yasumasa Otsuka ,  Yoji Tomoyuki ,  Akira Hayakawa ,  Daizo Fukuzawa ,  Mahito Yoshioka ,  Masahide Hirai ,  Ken Nakagawa ,  Hisashi Nakahara

发明人： Akira Kato ,  Yasumasa Otsuka ,  Yoji Tomoyuki ,  Akira Hayakawa ,  Daizo Fukuzawa ,  Mahito Yoshioka ,  Masahide Hirai ,  Ken Nakagawa ,  Hisashi Nakahara

IPC分类号： G03G1500

CPC分类号： G03G15/2039 ,  G03G2215/2035

摘要： An image fixing apparatus has a heating member, a back-up roller cooperating with the heating member to form a nip therebetween for pinching and conveying a recording material bearing an image thereon, and a controlling device for controlling a temperature of the nip. The controlling device heats the nip after a fixing process is finished and after a rotation of the back-up roller is stopped.

摘要翻译： 图像定影装置具有加热构件，与加热构件配合的支撑辊，以在其间形成夹持并传送其上具有图像的记录材料的辊隙，以及用于控制辊隙温度的控制装置。 控制装置在定影处理完成之后并且在支撑辊的旋转停止之后加热辊隙。