公开(公告)号：US09025977B2

公开(公告)日：2015-05-05

申请号：US14175632

申请日：2014-02-07

申请人： Hiroyuki Sugiyama ,  Jun Yura ,  Masaki Sukesako ,  Hironobu Takeshita ,  Takuya Suganuma ,  Takeshi Uchitani ,  Hiroki Ishii

发明人： Hiroyuki Sugiyama ,  Jun Yura ,  Masaki Sukesako ,  Hironobu Takeshita ,  Takuya Suganuma ,  Takeshi Uchitani ,  Hiroki Ishii

IPC分类号： G03G15/00 ,  G03G21/20

CPC分类号： G03G21/20 ,  G03G15/55

摘要： An image forming apparatus capable of continuous image formation on multiple pages includes an image bearer to bear an image, a latent image forming unit to form a latent image on the image bearer, a developing device to develop the latent image with toner, a temperature sensor to detect temperature inside the developing device or adjacent to the developing device, a controller to impose a limit on a quantity of pages in continuous image formation and cancel the limit according to a detection result generated by the temperature sensor, and a report unit to report time data indicating when the limit is imposed.

摘要翻译： 能够在多页上连续成像的图像形成装置包括承载图像的图像载体，在图像载体上形成潜像的潜像形成单元，利用调色剂显影潜像的显影装置，温度传感器 以检测显影装置内部或显影装置附近的温度，控制器，对连续图像形成中的页数施加限制，并根据温度传感器产生的检测结果消除限制;报告单元报告 时间数据指示施加限制的时间。

公开(公告)号：US20150050038A1

公开(公告)日：2015-02-19

申请号：US14449418

申请日：2014-08-01

申请人： Takuya SUGANUMA ,  Jun YURA ,  Takeshi UCHITANI ,  Masaki SUKESAKO ,  Hiroki ISHII ,  Hironobu TAKESHITA ,  Shogo KEZUKA

发明人： Takuya SUGANUMA ,  Jun YURA ,  Takeshi UCHITANI ,  Masaki SUKESAKO ,  Hiroki ISHII ,  Hironobu TAKESHITA ,  Shogo KEZUKA

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/2042 ,  G03G15/231

摘要： An image forming apparatus includes a fixing member, a pressing member, heat generators, temperature detectors, a power source, and a heat controller. The heat generators include a first heat generator and second heat generators corresponding to an imaged area and a blank area, respectively, of a recording medium. The heat controller controls a power source according to data provided by the temperature detectors, such that a heating area of the fixing member heated by one of the second heat generators located adjacent to the first heat generator acquires a temperature of T1−ΔT, where T1 is a temperature corresponding to the imaged area higher than a temperature T2 corresponding to the blank area, and ΔT is a temperature lower than a difference between T1 and T2. The heat controller changes ΔT between when a first side thereof is printed upon duplex printing and upon single-sided printing.

摘要翻译： 图像形成装置包括固定构件，按压构件，发热体，温度检测器，电源和热控制器。 发热体包括分别对应于记录介质的成像区域和空白区域的第一热发生器和第二热发生器。 热控制器根据由温度检测器提供的数据控制电源，使得由位于第一热发生器附近的第二发热体之一加热的固定部件的加热区域获得T1-＆Dgr; T的温度， 其中T1是对应于高于对应于空白区域的温度T2的成像区域的温度，＆Dgr; T是比T1和T2之间的差低的温度。 当双面打印和单面打印时，热控制器的第一面打印时，热控制器会改变Dgr。T。

公开(公告)号：US20120230711A1

公开(公告)日：2012-09-13

申请号：US13411956

申请日：2012-03-05

申请人： Jun SHIORI ,  Yukiko IWASAKI ,  Masaki SUKESAKO ,  Hiroyuki SUGIYAMA ,  Kazuaki KAMIHARA ,  Hironobu TAKESHITA

发明人： Jun SHIORI ,  Yukiko IWASAKI ,  Masaki SUKESAKO ,  Hiroyuki SUGIYAMA ,  Kazuaki KAMIHARA ,  Hironobu TAKESHITA

IPC分类号： G03G15/00

CPC分类号： G03G21/20 ,  G03G2215/00772

摘要： An image forming apparatus includes an image carrier; a latent-image forming unit configured to form a latent image on the image carrier; a developing unit configured to develop the latent image on the image carrier with a developer applied onto a developer carrier; a temperature detector configured to detect an internal temperature or an ambient temperature of the developing unit, the internal temperature and ambient temperature varying depending on a temperature of the developer carrier; and a control unit configured to control restriction on number of pages on which image formation is allowed to be performed continuously and cancellation of the restriction, based on the temperature detected by the temperature detector.

摘要翻译： 图像形成装置包括图像载体; 潜像形成单元，被配置为在所述图像载体上形成潜像; 显影单元，配置成用施加到显影剂载体上的显影剂将图像载体上的潜像显影; 温度检测器，被配置为检测显影单元的内部温度或环境温度，内部温度和环境温度根据显影剂载体的温度而变化; 以及控制单元，被配置为基于由温度检测器检测到的温度来控制对连续进行图像形成的页数的限制以及限制的消除。

公开(公告)号：US10599081B2

公开(公告)日：2020-03-24

申请号：US16103472

申请日：2018-08-14

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

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

IPC分类号： G03G15/16 ,  G03G15/00 ,  G03G21/16 ,  G03G15/06 ,  G03G15/02

摘要： An image forming apparatus includes a latent image bearer to bear a latent image, a potential sensor having a vibrator driven by a drive frequency to detect a surface potential of the latent image bearer, a developer bearer to bear developer that develops the latent image on the latent image bearer, and a power supply to apply a superimposed voltage obtained by superimposing an alternating voltage on a direct current voltage on the developer bearer. The frequency of the alternating voltage is not a multiple of the drive frequency and is a value obtained by adding a predetermined value to a multiple of the driving frequency.

公开(公告)号：US20180143581A1

公开(公告)日：2018-05-24

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： G03G21/00

CPC分类号： G03G21/0094 ,  G03G15/0126 ,  G03G15/065 ,  G03G15/0907

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：US09500978B2

公开(公告)日：2016-11-22

申请号：US14794025

申请日：2015-07-08

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

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

IPC分类号： G03G21/00 ,  G03G15/02 ,  G03G21/06 ,  G03G21/08

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：US20160147174A1

公开(公告)日：2016-05-26

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 KUNll ,  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 KUNll ,  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：US20150160599A1

公开(公告)日：2015-06-11

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 ,  G03G15/16

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 thereof 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阈值时。

公开(公告)号：US08731417B2

公开(公告)日：2014-05-20

申请号：US13411956

申请日：2012-03-05

申请人： Jun Shiori ,  Yukiko Iwasaki ,  Masaki Sukesako ,  Hiroyuki Sugiyama ,  Kazuaki Kamihara ,  Hironobu Takeshita

发明人： Jun Shiori ,  Yukiko Iwasaki ,  Masaki Sukesako ,  Hiroyuki Sugiyama ,  Kazuaki Kamihara ,  Hironobu Takeshita

IPC分类号： G03G15/00

CPC分类号： G03G21/20 ,  G03G2215/00772

摘要： An image forming apparatus includes an image carrier; a latent-image forming unit configured to form a latent image on the image carrier; a developing unit configured to develop the latent image on the image carrier with a developer applied onto a developer carrier; a temperature detector configured to detect an internal temperature or an ambient temperature of the developing unit, the internal temperature and ambient temperature varying depending on a temperature of the developer carrier; and a control unit configured to control restriction on number of pages on which image formation is allowed to be performed continuously and cancellation of the restriction, based on the temperature detected by the temperature detector.

摘要翻译： 图像形成装置包括图像载体; 潜像形成单元，被配置为在所述图像载体上形成潜像; 显影单元，配置成用施加到显影剂载体上的显影剂将图像载体上的潜像显影; 温度检测器，被配置为检测显影单元的内部温度或环境温度，内部温度和环境温度根据显影剂载体的温度而变化; 以及控制单元，被配置为基于由温度检测器检测到的温度来控制对连续进行图像形成的页数的限制以及限制的消除。

公开(公告)号：US08655214B2

公开(公告)日：2014-02-18

申请号：US13286732

申请日：2011-11-01

申请人： Hiroyuki Sugiyama ,  Jun Yura ,  Tokuya Ojimi ,  Yukiko Iwasaki ,  Jun Shiori ,  Masaki Sukesako ,  Kazuaki Kamihara ,  Hironobu Takeshita

发明人： Hiroyuki Sugiyama ,  Jun Yura ,  Tokuya Ojimi ,  Yukiko Iwasaki ,  Jun Shiori ,  Masaki Sukesako ,  Kazuaki Kamihara ,  Hironobu Takeshita

IPC分类号： G03G15/20

CPC分类号： G03G15/205 ,  G03G15/04027 ,  G03G15/2039

摘要： An image forming apparatus including a fixing unit configured to fix a not-yet-fixed image on a recording medium, includes a fixing target temperature changing part configured to change a fixing target temperature at a time of a fixing process; and a gradation processing part configured to carry out gradation processing on image information. For each sheet of a recording medium on which the fixing process is carried out, the fixing target temperature is changed based on whether halftone processing is carried out and a type of gradation processing to be used.

摘要翻译： 一种图像形成装置，包括：固定单元，被配置为将未固定的图像固定在记录介质上，包括：定影目标温度变化部，被配置为在定影处理时改变定影目标温度; 以及灰度处理部，被配置为对图像信息进行灰度处理。 对于执行定影处理的记录介质的每张片材，基于是否进行半色调处理和要使用的灰度处理的类型来改变定影目标温度。