公开(公告)号：US10241462B2

公开(公告)日：2019-03-26

申请号：US15714610

申请日：2017-09-25

申请人： Masayoshi Nakayama ,  Takuma Higa ,  Masaki Sukesako ,  Masashi Tachi ,  Kazuaki Kamihara ,  Yuichi Aizawa ,  Tomohide Takenaka ,  Kohei Matsumoto

发明人： Masayoshi Nakayama ,  Takuma Higa ,  Masaki Sukesako ,  Masashi Tachi ,  Kazuaki Kamihara ,  Yuichi Aizawa ,  Tomohide Takenaka ,  Kohei Matsumoto

IPC分类号： G03G15/00 ,  G03G21/00 ,  G03G15/01 ,  G03G15/09

摘要： An electrophotographic image forming apparatus includes a latent image bearer to rotate and bear a latent image, a charging device to charge the a latent image bearer, a developing device to develop the latent image with developer including toner and use a developing voltage including an AC component, and a lubricant applicator to apply lubricant onto a surface of the latent image bearer. An amount of the lubricant applied by the lubricant applicator onto the latent image bearer per centimeter in an axial direction of the latent image bearer is equal to or greater than 0.845 mg for a running distance of 1.0 kilometer of the latent image bearer, and a difference between a largest value and a smallest value of the developing voltage is in a range of 200 V to 400 V.

公开(公告)号：US20170003630A1

公开(公告)日：2017-01-05

申请号：US15265562

申请日：2016-09-14

申请人： Tatsuya OHSUGI ,  Kenji SUGIURA ,  Jyunya SAKURABA ,  Hirokazu ISHII ,  Toshitaka YAMAGUCHI ,  Hiroyoshi HAGA ,  Naohiro KUMAGAI ,  Seiichi KOGURE ,  Junpei FUJITA ,  Yuuji WADA ,  Kazuki YOGOSAWA ,  Shinya TANAKA ,  Masayoshi NAKAYAMA

发明人： Tatsuya OHSUGI ,  Kenji SUGIURA ,  Jyunya SAKURABA ,  Hirokazu ISHII ,  Toshitaka YAMAGUCHI ,  Hiroyoshi HAGA ,  Naohiro KUMAGAI ,  Seiichi KOGURE ,  Junpei FUJITA ,  Yuuji WADA ,  Kazuki YOGOSAWA ,  Shinya TANAKA ,  Masayoshi NAKAYAMA

IPC分类号： G03G15/16

CPC分类号： G03G15/1675 ,  G03G15/1605 ,  G03G15/162 ,  G03G15/1665 ,  G03G15/1685

摘要： An image forming apparatus includes an image bearer, a transfer member, and a power source. The image bearer includes a plurality of layers. The transfer member forms a transfer nip between the image bearer and the transfer member. The power source outputs a transfer bias to transfer a toner image from the image bearer onto a recording sheet in the transfer nip. The transfer bias alternates between a transfer-side bias that causes the toner image to move from the image bearer to the recording sheet, and an opposite-side bias different from the transfer-side bias. A duty ratio of a time period, during which the opposite-side bias is output, relative to one cycle of a waveform, is greater than 50%.

摘要翻译： 图像形成装置包括图像载体，转印构件和电源。 图像载体包括多个层。 转印部件在图像承载体和转印部件之间形成转印辊隙。 电源输出转印偏压以将调色剂图像从图像载体转印到转印辊隙中的记录纸上。 转印偏压在导致调色剂图像从图像载体移动到记录片材的转印侧偏置之间交替，并且与转印侧偏压不同的相反侧偏置交替。 相对于波形的一个周期，输出相对侧偏压的时间段的占空比大于50％。

公开(公告)号：US09488931B2

公开(公告)日：2016-11-08

申请号：US14939057

申请日：2015-11-12

申请人： Makoto Yasuda ,  Jun Hitosugi ,  Takamasa Ozeki ,  Mutsuki Morinaga ,  Emiko Shiraishi ,  Wakana Itoh ,  Hitoshi Yamamoto ,  Takatsugu Komori ,  Kunio Hasegawa ,  Tadashi Kasai ,  Kazuaki Kamihara ,  Kazumi Kobayashi ,  Hiroyuki Kunii ,  Masaki Sukesako ,  Yuichi Aizawa ,  Masakazu Terao ,  Masayoshi Nakayama ,  Takuma Higa ,  Masahiro Katoh ,  Kohei Matsumoto

发明人： Makoto Yasuda ,  Jun Hitosugi ,  Takamasa Ozeki ,  Mutsuki Morinaga ,  Emiko Shiraishi ,  Wakana Itoh ,  Hitoshi Yamamoto ,  Takatsugu Komori ,  Kunio Hasegawa ,  Tadashi Kasai ,  Kazuaki Kamihara ,  Kazumi Kobayashi ,  Hiroyuki Kunii ,  Masaki Sukesako ,  Yuichi Aizawa ,  Masakazu Terao ,  Masayoshi Nakayama ,  Takuma Higa ,  Masahiro Katoh ,  Kohei Matsumoto

IPC分类号： G03G15/08

CPC分类号： G03G15/0824 ,  G03G15/0844 ,  G03G15/0849

摘要： An image forming apparatus includes a latent image bearer; a developing device containing two-component developer and including a developer bearer, a development voltage source, and a toner concentration detector; a toner supply device to supply toner to the developing device; a transfer device; and a controller to keep a toner concentration in the developer in the developing device at a target toner concentration during image formation. The controller executes forced toner consumption in which the developing device supplies the toner to the latent image bearer the toner at a predetermined forced toner consumption timing, while inhibiting the toner supply device from supplying toner. When the toner concentration falls to a prescribed toner density lower than the target toner concentration, the controller completes the forced toner consumption and executes a post-consumption toner supply operation.

摘要翻译： 图像形成装置包括潜像载体; 包含双组分显影剂并包括显影剂承载体的显影装置，显影电压源和调色剂浓度检测器; 调色剂供应装置，用于向显影装置供应调色剂; 转移装置; 以及控制器，用于在图像形成期间将显影装置中的显影剂中的调色剂浓度保持在目标调色剂浓度。 控制器执行强制调色剂消耗，其中在抑制调色剂供应装置供应调色剂的同时，显影装置以预定的强制调色剂消耗时间将调色剂供给到潜像承载调色剂。 当调色剂浓度降低到低于目标调色剂浓度的规定调色剂浓度时，控制器完成强制调色剂消耗并执行消耗后调色剂供应操作。

公开(公告)号：US09459564B2

公开(公告)日：2016-10-04

申请号：US14881611

申请日：2015-10-13

申请人： Tatsuya Ohsugi ,  Kenji Sugiura ,  Jyunya Sakuraba ,  Hirokazu Ishii ,  Toshitaka Yamaguchi ,  Hiroyoshi Haga ,  Naohiro Kumagai ,  Seiichi Kogure ,  Junpei Fujita ,  Yuuji Wada ,  Kazuki Yogosawa ,  Shinya Tanaka ,  Masayoshi Nakayama

发明人： Tatsuya Ohsugi ,  Kenji Sugiura ,  Jyunya Sakuraba ,  Hirokazu Ishii ,  Toshitaka Yamaguchi ,  Hiroyoshi Haga ,  Naohiro Kumagai ,  Seiichi Kogure ,  Junpei Fujita ,  Yuuji Wada ,  Kazuki Yogosawa ,  Shinya Tanaka ,  Masayoshi Nakayama

IPC分类号： G03G15/20 ,  G03G15/16

CPC分类号： G03G15/1675 ,  G03G15/1605 ,  G03G15/162 ,  G03G15/1665 ,  G03G15/1685

摘要： An image forming apparatus includes an image bearer, a transfer member, and a power source. The image bearer includes a plurality of layers. The transfer member forms a transfer nip between the image bearer and the transfer member. The power source outputs a transfer bias to transfer a toner image from the image bearer onto a recording sheet in the transfer nip. The transfer bias alternates between a transfer-side bias that causes the toner image to move from the image bearer to the recording sheet, and an opposite-side bias different from the transfer-side bias. A duty ratio of a time period, during which the opposite-side bias is output, relative to one cycle of a waveform, is greater than 50%.

摘要翻译： 图像形成装置包括图像载体，转印构件和电源。 图像载体包括多个层。 转印部件在图像承载体和转印部件之间形成转印辊隙。 电源输出转印偏压以将调色剂图像从图像载体转印到转印辊隙中的记录纸上。 转印偏压在导致调色剂图像从图像载体移动到记录片材的转印侧偏置之间交替，并且与转印侧偏压不同的相反侧偏置交替。 相对于波形的一个周期，输出相对侧偏压的时间段的占空比大于50％。

公开(公告)号：US20160026109A1

公开(公告)日：2016-01-28

申请号：US14794025

申请日：2015-07-08

申请人： Masayoshi Nakayama ,  Takuma Higa ,  Hiroyuki Kunii ,  Masaki Sukesako ,  Kazuaki Kamihara ,  Masakazu Terao ,  Yuichi Aizawa ,  Masahiro Katoh ,  Kohei Matsumoto ,  Toshihiro Sugiyama

发明人： Masayoshi Nakayama ,  Takuma Higa ,  Hiroyuki Kunii ,  Masaki Sukesako ,  Kazuaki Kamihara ,  Masakazu Terao ,  Yuichi Aizawa ,  Masahiro Katoh ,  Kohei Matsumoto ,  Toshihiro Sugiyama

IPC分类号： G03G15/02 ,  G03G21/00

CPC分类号： G03G15/0275 ,  G03G21/06 ,  G03G21/08

摘要： An image forming apparatus includes a first electric charging unit having an electric discharge wire to uniformly electrify a surface of the electrostatic latent image bearer, a second electric charging unit having a second electric discharge wire to execute a pre-electric charge removal electric charging process by electrifying the surface of the electrostatic latent image bearer subsequent to a transfer process to transfer a toner image, and a first electric charge removing device to diselectrify the surface of the electrostatic latent image bearer by irradiating it with electric charge removing light subsequent to the pre-electric charge removal electric charging process. The first electric charge removing device is disposed within an electric discharge region of the second electric discharge wire on a downstream side of an extreme upstream edge of the electric discharge region of the second electric discharge wire in a rotational direction of the electrostatic latent image bearer.

摘要翻译： 图像形成装置包括具有放电线以使静电潜像载体的表面均匀充电的第一充电单元，具有第二放电线的第二充电单元，用于执行预充电去除充电过程， 在传送调色剂图像的转印处理之后对静电潜像承载体的表面通电，以及第一电荷去除装置，以通过在静电潜像承载体的表面上照射电荷去除光， 电荷去除充电过程。 第一电荷除去装置设置在第二放电线的放电区域中，在静电潜像承载体的旋转方向上位于第二放电线的放电区域的最上游边缘的下游侧。

公开(公告)号：US08718498B2

公开(公告)日：2014-05-06

申请号：US13064102

申请日：2011-03-07

申请人： Masayoshi Nakayama

发明人： Masayoshi Nakayama

IPC分类号： G03G15/00

CPC分类号： G03G15/1605 ,  G03G15/0131 ,  G03G15/0194 ,  G03G15/5058 ,  G03G2215/00059

摘要： An image forming apparatus includes: an image forming unit that includes a developing unit with a developing roller to form an image using toner; a controller; and a detection unit that detects a plurality of toner patches formed at different densities on an image carrier by the image forming unit. The controller controls the image forming unit to form the toner patches on the image carrier so that each interval between the toner patches is equal to or greater than a length corresponding to a circumference length of the developing roller.

摘要翻译： 图像形成装置包括：图像形成单元，其包括具有显影辊的显影单元，以使用调色剂形成图像; 控制器 以及检测单元，其通过图像形成单元检测在图像载体上以不同密度形成的多个调色剂贴片。 控制器控制图像形成单元以在图像载体上形成调色剂贴片，使得调色剂贴片之间的每个间隔等于或大于对应于显影辊的圆周长度的长度。

公开(公告)号：US08014202B2

公开(公告)日：2011-09-06

申请号：US12489870

申请日：2009-06-23

申请人： Masayoshi Nakayama ,  Kazuyuki Kouno ,  Reiji Mochida ,  Hoshihide Haruyama

发明人： Masayoshi Nakayama ,  Kazuyuki Kouno ,  Reiji Mochida ,  Hoshihide Haruyama

IPC分类号： G11C11/34 ,  G11C16/04

CPC分类号： G11C16/16 ,  G11C16/344 ,  G11C16/3445

摘要： In a non-volatile semiconductor memory device, variations in voltage applied to a bit line when an erase voltage applying step is repeatedly executed are suppressed, thereby reducing variations in Vt after erasure. A memory array includes memory cells arranged in an array, a plurality of word lines, and a plurality of bit lines and main bit lines. The memory array also includes a usable region which can store data and an isolation region which cannot store data. Each bit line provided in the usable region is connected via a select transistor to the corresponding main bit line. At least one main bit line is connected not only to a bit line of the usable region, but also to a bit line of the isolation region via a select transistor.

摘要翻译： 在非易失性半导体存储器件中，抑制了当擦除电压施加步骤被重复执行时施加到位线的电压变化，从而减少了擦除后Vt的变化。 存储器阵列包括以阵列布置的存储器单元，多个字线以及多个位线和主位线。 存储器阵列还包括可存储数据的可用区域和不能存储数据的隔离区域。 提供在可用区域中的每个位线通过选择晶体管连接到相应的主位线。 至少一个主位线不仅连接到可用区域的位线，而且还经由选择晶体管连接到隔离区域的位线。

公开(公告)号：US20100215389A1

公开(公告)日：2010-08-26

申请号：US12709034

申请日：2010-02-19

申请人： Masaaki IMAHORI ,  Masayoshi NAKAYAMA

发明人： Masaaki IMAHORI ,  Masayoshi NAKAYAMA

IPC分类号： G03G15/06

CPC分类号： G03G15/065 ,  G03G15/55 ,  G03G15/553 ,  G03G2215/0129

摘要： An image forming apparatus includes an image carrier, a developer carrier, a runout measurement information storage unit to store runout measurement information of the image carrier and the developer carrier, including runout amounts on the circumference of the image and developer carriers in a development area, a development gap measurement information storage unit to store information obtained by measuring a development gap when runout measurement points of the image and developer carriers face each other, and a development electric field strength control unit to obtain each development electric field strength based on the runout measurement information and the development gap measurement information, and determine control contents of development electric field strength control to cause the entire development electric field strengths to fall within an acceptable range of a target electric field strength to perform the control contents.

摘要翻译： 图像形成装置包括图像载体，显影剂载体，跳动测量信息存储单元，用于存储图像载体和显影剂载体的跳动测量信息，包括在显影区域中的图像和显影剂载体的圆周上的偏移量， 显影间隙测量信息存储单元，用于存储当图像和显影剂载体的跳动测量点彼此面对时通过测量显影间隙获得的信息;以及显影电场强度控制单元，用于基于跳动测量获得每个显影电场强度 信息和开发间隙测量信息，并且确定开发电场强度控制的控制内容以使整个显影电场强度落入目标电场强度的可接受范围内，以执行控制内容。

公开(公告)号：US07339823B2

公开(公告)日：2008-03-04

申请号：US11544608

申请日：2006-10-10

申请人： Masayoshi Nakayama ,  Asako Miyoshi ,  Seiji Yamahira

发明人： Masayoshi Nakayama ,  Asako Miyoshi ,  Seiji Yamahira

IPC分类号： G11C11/34

CPC分类号： G11C16/32 ,  G11C11/5642 ,  G11C16/26 ,  G11C2211/5641

摘要： A memory cell array is logically divided into a plurality of regions having different reading speeds, the respective regions having the different reading speeds include region information storage regions for storing region information in which at least two addresses present in the memory cell at the same time are set to be different regions, a reading control circuit is constituted to carry out a reading operation by determining any of the divided regions which is to be read, selecting an optimum reading method and controlling the reading circuit based on the region information stored in the region information storage region, and an address which can be read in a short time in multivalued information stored in one memory cell is set to be a high speed reading region and is distinguished from regions having the other reading speeds. Consequently, it is possible to efficiently write and read information of 2 bits or more in one memory cell array without reducing a using efficiency of the memory cell array.

摘要翻译： 存储单元阵列在逻辑上被划分为具有不同读取速度的多个区域，具有不同读取速度的各个区域包括区域信息存储区域，用于存储其中同时存在于存储单元中的至少两个地址的区域信息 设置为不同的区域，读取控制电路被构成为通过确定要被读取的任何划分区域，选择最佳读取方法和基于存储在该区域中的区域信息来控制读取电路来执行读取操作 信息存储区域和在一个存储单元中存储的多值信息中可以在短时间内读取的地址被设置为高速读取区域，并且区别于具有其他读取速度的区域。 因此，可以在不降低存储单元阵列的使用效率的情况下有效地在一个存储单元阵列中写入和读取2位或更多的信息。

公开(公告)号：US20070086245A1

公开(公告)日：2007-04-19

申请号：US11544608

申请日：2006-10-10

申请人： Masayoshi Nakayama ,  Asako Miyoshi ,  Seiji Yamahira

发明人： Masayoshi Nakayama ,  Asako Miyoshi ,  Seiji Yamahira

IPC分类号： G11C16/04

CPC分类号： G11C16/32 ,  G11C11/5642 ,  G11C16/26 ,  G11C2211/5641

摘要： A memory cell array is logically divided into a plurality of regions having different reading speeds, the respective regions having the different reading speeds include region information storage regions for storing region information in which at least two addresses present in the memory cell at the same time are set to be different regions, a reading control circuit is constituted to carry out a reading operation by determining any of the divided regions which is to be read, selecting an optimum reading method and controlling the reading circuit based on the region information stored in the region information storage region, and an address which can be read in a short time in multivalued information stored in one memory cell is set to be a high speed reading region and is distinguished from regions having the other reading speeds. Consequently, it is possible to efficiently write and read information of 2 bits or more in one memory cell array without reducing a using efficiency of the memory cell array.

摘要翻译： 存储单元阵列在逻辑上被划分为具有不同读取速度的多个区域，具有不同读取速度的各个区域包括区域信息存储区域，用于存储其中同时存在于存储单元中的至少两个地址的区域信息 设置为不同的区域，读取控制电路被构成为通过确定要被读取的任何划分区域，选择最佳读取方法和基于存储在该区域中的区域信息来控制读取电路来执行读取操作 信息存储区域和在一个存储单元中存储的多值信息中可以在短时间内读取的地址被设置为高速读取区域，并且区别于具有其他读取速度的区域。 因此，可以在不降低存储单元阵列的使用效率的情况下有效地在一个存储单元阵列中写入和读取2位或更多的信息。