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1. 发明授权

US06954604B2 Electronic photographing apparatus 失效
标题翻译：电子摄影装置
公开(公告)号：US06954604B2
公开(公告)日：2005-10-11
申请号：US10765994
申请日：2004-01-29
申请人： Hisao Okada , Masayoshi Nakayama
发明人： Hisao Okada , Masayoshi Nakayama
IPC分类号： G03G9/10 , G03G15/09 , G03G15/08
CPC分类号： G03G15/0907
摘要： The invention provides an electronic photographing apparatus using a two-component developer as a mixture of a toner and a carrier as well as a development unit including a developer roll having magnetic poles therein. The electronic photographing apparatus includes a development bias power source for applying to the developer roll a development bias voltage where an AC voltage is superimposed on a DC voltage. The electronic photographing apparatus develops a latent image on a photosensitive body by using toner to form an image, characterized in that the ratio of the volume of the carrier to a space sandwiched between the developer roll and the photosensitive body is set within a range from 32 percent to 46 percent and that that the resistivity of the carrier under a field strength of 2000 V/cm is set to 3×1010 Ωcm or more.
摘要翻译：本发明提供使用双组分显影剂作为调色剂和载体的混合物的电子摄影装置以及包括其中具有磁极的显影辊的显影单元。电子摄影装置包括用于向显影剂辊施加交流电压叠加在直流电压上的显影偏压的显影偏压电源。电子摄影装置通过使用调色剂在感光体上显影潜像以形成图像，其特征在于，载体的体积与夹在显影辊和感光体之间的空间的比率设定在32 百分比至46％，并且在2000V / cm的场强下载体的电阻率设定为3×10 10Ω或更大。

2. 发明授权

US07106983B2 Color image forming apparatus 有权
标题翻译：彩色图像形成装置
公开(公告)号：US07106983B2
公开(公告)日：2006-09-12
申请号：US10916618
申请日：2004-08-12
申请人： Masayoshi Nakayama , Teruaki Mitsuya , Hisao Okada , Keisuke Kubota , Takashi Rokutanda
发明人： Masayoshi Nakayama , Teruaki Mitsuya , Hisao Okada , Keisuke Kubota , Takashi Rokutanda
IPC分类号： G03G15/00
CPC分类号： G03G15/0121 , G03G15/065 , G03G2215/0634
摘要： A color image forming apparatus includes a developing unit to which a developing bias with an AC component superposed is applied, wherein the DC voltage of the developing bias is adjusted to set the detected density of a solid image at a specified value, the light amount of radiation for exposing an image area having a width of a few dots adjacent to the white paper is adjusted to set the detected density of an image developed under a peripheral electric field at a specified value, and the gradation density curve is regulated by alternately adjusting the DC voltage, the light amount of radiation for exposing the image area having a width of a few dots adjacent to the white paper, and the amplitude of the AC component until the detected density of a mesh point image having an area ratio from 60 to 80% falls within a specified range.
摘要翻译：彩色图像形成装置包括：显影单元，施加具有叠加的交流分量的显影偏压，其中调整显影偏压的直流电压，以将检测到的实心图像的浓度设定在规定值，光量调整用于曝光具有与白纸相邻的几个点的宽度的图像区域的辐射，以将在周围电场下显影的图像的检测浓度设定为规定值，并且通过交替调整色调浓度曲线来调节灰度浓度曲线 DC电压，用于曝光具有与白纸相邻的几个点的宽度的图像区域的辐射的光量以及AC分量的振幅直到具有60至80的面积比的网格图像的检测密度％落在指定范围内。

3. 发明申请

US20050063721A1 Color image forming apparatus 有权
标题翻译：彩色图像形成装置
公开(公告)号：US20050063721A1
公开(公告)日：2005-03-24
申请号：US10916618
申请日：2004-08-12
申请人： Masayoshi Nakayama , Teruaki Mitsuya , Hisao Okada , Keisuke Kubota , Takashi Rokutanda
发明人： Masayoshi Nakayama , Teruaki Mitsuya , Hisao Okada , Keisuke Kubota , Takashi Rokutanda
IPC分类号： G03G15/00 , G03G15/01 , G03G15/06 , G03G21/00 , G03G15/02 , G03G15/043
CPC分类号： G03G15/0121 , G03G15/065 , G03G2215/0634
摘要： A color image forming apparatus includes a developing unit to which a developing bias with an AC component superposed is applied, wherein the DC voltage of the developing bias is adjusted to set the detected density of a solid image at a specified value, the light amount of radiation for exposing an image area having a width of a few dots adjacent to the white paper is adjusted to set the detected density of an image developed under a peripheral electric field at a specified value, and the gradation density curve is regulated by alternately adjusting the DC voltage, the light amount of radiation for exposing the image area having a width of a few dots adjacent to the white paper, and the amplitude of the AC component until the detected density of a mesh point image having an area ratio from 60 to 80% falls within a specified range.
摘要翻译：彩色图像形成装置包括：显影单元，施加具有叠加的交流分量的显影偏压，其中调整显影偏压的直流电压，以将检测到的实心图像的浓度设定在规定值，光量调整用于曝光具有与白纸相邻的几个点的宽度的图像区域的辐射，以将在周围电场下显影的图像的检测浓度设定为规定值，并且通过交替调整色调浓度曲线来调节灰度浓度曲线 DC电压，用于曝光具有与白纸相邻的几个点的宽度的图像区域的辐射的光量以及AC分量的振幅直到具有60至80的面积比的网格图像的检测密度％落在指定范围内。

4. 发明授权

US09696654B2 Image forming apparatus comprising image density detector and toner concentration detector 有权
公开(公告)号：US09696654B2
公开(公告)日：2017-07-04
申请号：US15089275
申请日：2016-04-01
申请人： Masayoshi Nakayama , Takuma Higa , Hiroyuki Kunii , Masaki Sukesako , Kazuaki Kamihara , Yuichi Aizawa , Masahiro Katoh , Kohei Matsumoto
发明人： Masayoshi Nakayama , Takuma Higa , Hiroyuki Kunii , Masaki Sukesako , Kazuaki Kamihara , Yuichi Aizawa , Masahiro Katoh , Kohei Matsumoto
IPC分类号： G03G15/08 , G03G15/00
CPC分类号： G03G15/0849 , G03G15/0877 , G03G15/5058 , G03G15/556
摘要： An image forming apparatus includes an image bearer, an image forming device, a toner concentration detector, a toner supply device, an image density detector, and a controller including a memory device. At a predetermined timing before image formation is started, the controller adjusts a developing potential to adjust an image density of a detection toner image on the image bearer and drives the toner supply device or the developing device to adjust a toner concentration in the developing device. After the image formation is started, the controller drives the toner supply device to adjust the toner concentration, and, in a predetermined sheet interval, adjusts the target concentration based on the image density of the detection toner image formed in a non-image area of the image bearer. When the toner concentration is higher than the target concentration plus a threshold, the controller suspends image formation and readjusts the developing potential.

5. 发明申请

US20160291507A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20160291507A1
公开(公告)日：2016-10-06
申请号：US15089275
申请日：2016-04-01
申请人： Masayoshi Nakayama , Takuma Higa , Hiroyuki Kunii , Masaki Sukesako , Kazuaki Kamihara , Yuichi Aizawa , Masahiro Katoh , Kohei Matsumoto
发明人： Masayoshi Nakayama , Takuma Higa , Hiroyuki Kunii , Masaki Sukesako , Kazuaki Kamihara , Yuichi Aizawa , Masahiro Katoh , Kohei Matsumoto
IPC分类号： G03G15/08
CPC分类号： G03G15/0849 , G03G15/0877 , G03G15/5058 , G03G15/556
摘要： An image forming apparatus includes an image bearer, an image forming device, a toner concentration detector, a toner supply device, an image density detector, and a controller including a memory device. At a predetermined timing before image formation is started, the controller adjusts a developing potential to adjust an image density of a detection toner image on the image bearer and drives the toner supply device or the developing device to adjust a toner concentration in the developing device. After the image formation is started, the controller drives the toner supply device to adjust the toner concentration, and, in a predetermined sheet interval, adjusts the target concentration based on the image density of the detection toner image formed in a non-image area of the image bearer. When the toner concentration is higher than the target concentration plus a threshold, the controller suspends image formation and readjusts the developing potential.
摘要翻译：图像形成装置包括图像载体，图像形成装置，调色剂浓度检测器，调色剂供给装置，图像浓度检测器和包括存储器件的控制器。在图像形成开始之前的预定定时，控制器调节显影电位以调整图像载体上的检测调色剂图像的图像浓度并驱动调色剂供应装置或显影装置以调节显影装置中的调色剂浓度。在图像形成开始之后，控制器驱动调色剂供应装置以调节调色剂浓度，并且在预定的纸张间隔中，基于形成在非图像区域中的检测调色剂图像的图像浓度来调整目标浓度图像承载。当调色剂浓度高于目标浓度加阈值时，控制器暂停图像形成并重新调整显影电位。

6. 发明授权

US09229399B2 Image forming apparatus and method having a forcible toner consumption process 有权
标题翻译：具有强制调色剂消耗过程的图像形成装置和方法
公开(公告)号：US09229399B2
公开(公告)日：2016-01-05
申请号：US14561599
申请日：2014-12-05
申请人： Kazuaki Kamihara , Toshihiro Sugiyama , Takuma Higa , Masayoshi Nakayama , Hiroyuki Kunii , Masaki Sukesako , Wakana Itoh
发明人： Kazuaki Kamihara , Toshihiro Sugiyama , Takuma Higa , Masayoshi Nakayama , Hiroyuki Kunii , Masaki Sukesako , Wakana Itoh
IPC分类号： G03G15/08 , G03G15/00 , G03G15/16
CPC分类号： G03G15/50 , G03G15/1605 , G03G15/161 , G03G2215/0129
摘要： An image forming apparatus includes multiple image forming units each including a latent image bearer and a developing device, a transfer device to transfer toner images from the latent image bearers onto a surface of endless rotary member, a cleaner to clean the surface of the endless rotary member, and a control unit to execute a forcible toner consumption process to forcibly consume degraded toner stored in applicable one or more developing devices. The forcible toner consumption process includes a step of forming a toner image formed for forced consumption in a non-image region of the latent image bearer with an amount of toner corresponding to a difference between an image area ratio of a developed image and a prescribed threshold when the image area ratio of the developed image is lower than the prescribed threshold.
摘要翻译：图像形成装置包括多个图像形成单元，每个图像形成单元包括潜像载体和显影装置，将调色剂图像从潜像载体转印到无端旋转构件的表面上的转印装置，清洁器以清洁环形旋转体的表面以及控制单元，执行强制消耗墨粉的处理，以强制地消耗存储在适用的一个或多个显影装置中的降解调色剂。强制性墨粉消耗处理包括以与显影图像的图像面积比和规定阈值之间的差相应的调色剂量形成用于在潜像载体的非图像区域中强制消耗的调色剂图像的步骤当显影图像的图像面积比低于规定的阈值时。

7. 发明授权

US08270856B2 Apparatus including a re-transfer unit to re-transfer a recording medium and method of image forming 失效
标题翻译：包括重新传送记录介质的再传送单元和图像形成方法的设备
公开(公告)号：US08270856B2
公开(公告)日：2012-09-18
申请号：US12461479
申请日：2009-08-13
申请人： Takehide Mizutani , Hiroyoshi Haga , Tsutomu Kato , Yohhei Watanabe , Yoshimi Saitoh , Masayoshi Nakayama
发明人： Takehide Mizutani , Hiroyoshi Haga , Tsutomu Kato , Yohhei Watanabe , Yoshimi Saitoh , Masayoshi Nakayama
IPC分类号： G03G15/00 , G03G15/16 , G03G15/20 , G03G21/00
CPC分类号： G03G15/22 , G03G15/161 , G03G15/2025 , G03G15/234 , G03G2215/1661
摘要： An image forming apparatus is provided, which forms a releasing agent absorption toner image on an in-between printed sides area of a moving surface of an image carrier in the duplex printing mode. When the in-between printed sides area of the moving surface enters a transfer position at which a toner image is transferred from the image carrier to a recording medium, the transferring operation of transferring the toner image from the image carrier to a recording medium is interrupted to keep the releasing agent absorption toner image on the in-between printed sides area of the moving surface of the image carrier.
摘要翻译：提供一种图像形成装置，其以双面打印模式在图像载体的移动表面的中间印刷侧区域之间形成脱模剂吸收调色剂图像。当移动表面的中间印刷侧区域进入调色剂图像从图像载体转印到记录介质的转印位置时，将调色剂图像从图像载体转印到记录介质的转印操作被中断以将脱模剂吸收调色剂图像在图像载体的移动表面的中间印刷侧区域之间。

8. 发明授权

US07925174B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US07925174B2
公开(公告)日：2011-04-12
申请号：US12570332
申请日：2009-09-30
申请人： Masayoshi Nakayama , Shinichi Akatsu , Tomohide Takenaka , Takuma Higa
发明人： Masayoshi Nakayama , Shinichi Akatsu , Tomohide Takenaka , Takuma Higa
IPC分类号： G03G15/08
CPC分类号： G03G15/5058 , G03G15/0131 , G03G15/0848 , G03G15/5041 , G03G2215/00059 , G03G2215/00776 , G03G2215/0607
摘要： An image forming apparatus includes a latent image carrier, a developing unit to develop a latent image on the image carrier with developer including toner and carrier, a developer bearing member, a first detector to detect a toner adhesion amount per unit area of a toner image developed by the developing unit, a second detector to detect humidity, and a controller to calculate an index indicating toner chargeability of the carrier based on detection results of the toner adhesion amount obtained by the first detector and perform a given control process based on calculation results thereof and including a data storage unit to store an algorithm to correct the index to a specific value according to a specific humidity, based on detection results of the humidity obtained by the second detector. The controller corrects the index obtained based on the amount of toner adhesion based on the algorithm.
摘要翻译：图像形成装置包括潜像载体，显影单元，用于在具有调色剂和载体的显影剂的图像载体上显影潜像，显影剂承载部件，第一检测器，用于检测调色剂图像的每单位面积的调色剂附着量由显影单元显影，第二检测器检测湿度，以及控制器，基于由第一检测器获得的调色剂附着量的检测结果，计算载体的调色剂带电性的指标，并根据计算结果进行给定的控制处理并且包括数据存储单元，其基于由第二检测器获得的湿度的检测结果，存储根据特定湿度将索引校正到特定值的算法。控制器基于算法校正基于调色剂附着量获得的指数。

9. 发明授权

US07904001B2 Developing unit, process cartridge, and image forming apparatus having a plurality of conveyor members, a supply part, and a discharge part 有权
标题翻译：显影单元，处理盒和具有多个传送部件，供给部和排出部的图像形成装置
公开(公告)号：US07904001B2
公开(公告)日：2011-03-08
申请号：US12027636
申请日：2008-02-07
申请人： Susumu Tateyama , Yoshitaka Fujinuma , Masayoshi Nakayama , Tatsuya Kubo
发明人： Susumu Tateyama , Yoshitaka Fujinuma , Masayoshi Nakayama , Tatsuya Kubo
IPC分类号： G03G15/08
CPC分类号： G03G15/0822 , G03G2215/0819 , G03G2215/0838
摘要： A developing unit containing developer including carrier and toner and developing a latent image formed on an image carrier is disclosed. The developing unit includes multiple conveyor members configured to convey the contained developer in respective longitudinal directions so as to form a circulation channel; a supply part configured to supplement the carrier in the developing unit; a discharge part configured to discharge a first part of the contained developer outside the developing unit; and a bypass channel configured to cause a second part of the developer to return to the upstream side of the circulation channel without passing a position where the discharge part is provided.
摘要翻译：公开了一种显影单元，其包含显影剂，其包含载体和调色剂并且显影形成在图像载体上的潜像。显影单元包括多个传送器构件，其构造成在相应的纵向方向上输送容纳的显影剂，以便形成循环通道; 供给部构造成补充显影单元中的载体; 排出部构造成将显影单元外部的所盛放的显影剂的第一部分排出; 以及旁通通道，其构造成使得显影剂的第二部分不经过设置有排出部的位置而返回到循环通道的上游侧。

10. 发明申请

US20100129093A1 DEVICE AND METHOD FOR DETECTING LIFE OF ORGANIC PHOTORECEPTOR AND IMAGE FORMING APPARATUS 有权
标题翻译：用于检测有机光电子和图像形成装置的寿命的装置和方法
公开(公告)号：US20100129093A1
公开(公告)日：2010-05-27
申请号：US12623839
申请日：2009-11-23
申请人： Masayoshi Nakayama , Shinichi Akatsu , Tomohide Takenaka
发明人： Masayoshi Nakayama , Shinichi Akatsu , Tomohide Takenaka
IPC分类号： G03G15/02
CPC分类号： G03G15/5037 , G03G15/5045 , G03G15/553
摘要： A device for determining an end of life of an organic photoreceptor includes a potential detecting unit that detects a residual potential of the organic photoreceptor, a temperature detecting unit that detects temperature of the organic photoreceptor in either one of a direct manner and an indirect manner, and a life determining unit that determines the end of life of the organic photoreceptor based on the residual potential detected by the potential detecting unit and the temperature detected by the temperature detecting unit.
摘要翻译：用于确定有机感光体的寿命终止的装置包括检测有机感光体的残留电位的电位检测单元，以直接方式和间接方式检测有机感光体的温度的温度检测单元，以及生命确定单元，其基于由所述电位检测单元检测的残留电位和由所述温度检测单元检测到的温度来确定所述有机感光体的寿命终止。

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