公开(公告)号：US20080107452A1

公开(公告)日：2008-05-08

申请号：US11969638

申请日：2008-01-04

申请人： Akio KOSUGE

发明人： Akio KOSUGE

IPC分类号： G03G15/02 ,  G03G21/16

CPC分类号： G03G21/20 ,  G03G15/025 ,  G03G2215/021 ,  G03G2221/1693

摘要： A charging unit is disclosed capable of reducing undue variation and fluctuation margin of a charging gap, and controlling accurately the proper gap durably over the change of environmental conditions, which is suitably incorporated into an image forming apparatus. The charging unit is configured to charge an image bearing member in a non-contact arrangement, including a charging roller provided with a core shaft, a charging member formed of electroconductive resin integrally disposed on the periphery of the core shaft, and gap holding members formed of insulating resin each disposed at respective ends of the charging member outside an image forming region. The control of the charging gap is feasible by either forming the gap with a charging member having such a materials condition as to satisfy the relation, |G30−G10|×5

摘要翻译： 公开了一种充电单元，其能够减少充电间隙的不适当的变化和波动余量，并且能够适当地并入到图像形成装置中的环境条件的变化中，适当地控制适当的间隙。 充电单元构造成以非接触装置对图像承载部件进行充电，包括设置有芯轴的充电辊，由一体地设置在芯轴周边的导电树脂形成的充电部件和形成的间隙保持部件 绝缘树脂各自设置在充电部件的各个端部处于图像形成区域的外部。 充电间隙的控制可以通过与具有这样的材料条件的充电构件形成间隙来满足以下关系：_G 30 -G 10 | x 5 其中G 10，G 20和G 30是10°，20°的间隙平均值 °和30℃; 或者为充电辊提供安装在相应端部上的齿轮，以与安装在沿着旋转驱动的图像承载构件的凸缘上的另外的齿轮接合，并且形成这些齿轮，使得数字Nc和Np的最小公倍数为 NcxNp，其中Nc和Np分别是充电辊和图像承载部件的齿轮齿数。

公开(公告)号：US20120328332A1

公开(公告)日：2012-12-27

申请号：US13489063

申请日：2012-06-05

申请人： Akio KOSUGE ,  Shinichi Kawahara ,  Nobuo Kuwabara ,  Takeshi Shintani ,  Norio Kudo ,  Daisuke Tomita

发明人： Akio KOSUGE ,  Shinichi Kawahara ,  Nobuo Kuwabara ,  Takeshi Shintani ,  Norio Kudo ,  Daisuke Tomita

IPC分类号： G03G21/00

CPC分类号： G03G21/08

摘要： An image forming apparatus including an image bearing member, a charger, an irradiator, a developing device, a transfer device, a neutralizer, and a varying device is provided. The neutralizer is adapted to neutralize the image bearing member by emitting neutralization light thereto, after a toner image formed on the image bearing member is transferred therefrom. The varying device is adapted to vary an amount of the neutralization light to be emitted to the image bearing member by pulse-width modulation of a voltage to be supplied to the neutralizer. The image forming apparatus satisfies the following formula: f/V>5 wherein f (Hz) represents a frequency of the pulse-width modulation and V (mm/s) represents a linear speed of the image bearing member.

摘要翻译： 提供了包括图像承载部件，充电器，照射器，显影装置，转印装置，中和器和变化装置的图像形成装置。 在从图像承载部件上形成的调色剂图像转印到其上之后，中和器适于通过发射中和光来中和图像承载部件。 改变装置适于通过对要提供给中和器的电压的脉冲宽度调制来改变要发射到图像承载部件的中和光的量。 图像形成装置满足以下公式：f / V> 5其中f（Hz）表示脉宽调制的频率，V（mm / s）表示图像承载部件的线速度。

公开(公告)号：US20100278549A1

公开(公告)日：2010-11-04

申请号：US12833787

申请日：2010-07-09

申请人： Hitoshi ISHIBASHI ,  Kohta FUJIMORI ,  Shin HASEGAWA ,  Yushi HIRAYAMA ,  Nobutaka TAKEUCHI ,  Shinji KATO ,  Kayoko TANAKA ,  Naoto WATANABE ,  Kentaroh TOMITA ,  Satoru KOMATSUBARA ,  Akio KOSUGE

发明人： Hitoshi ISHIBASHI ,  Kohta FUJIMORI ,  Shin HASEGAWA ,  Yushi HIRAYAMA ,  Nobutaka TAKEUCHI ,  Shinji KATO ,  Kayoko TANAKA ,  Naoto WATANABE ,  Kentaroh TOMITA ,  Satoru KOMATSUBARA ,  Akio KOSUGE

IPC分类号： G03G15/02

CPC分类号： G03G15/0266 ,  G03G2215/021

摘要： An image forming apparatus includes an image carrier configured to carry an image and a charger to which a direct current voltage overlapped with an AC voltage is applied as a charging bias to charge the image carrier. The charger is positioned in contact or contactlessly with the image carrier. The AC voltage applied to the charger in an adjustment of the AC voltage is not less than twice a charging start voltage Vth at which the image carrier starts to be charged.

摘要翻译： 图像形成装置包括被配置为承载图像的图像载体和与AC电压重叠的直流电压的充电器作为充电偏压以对图像载体充电。 充电器与图像载体接触或非接触地定位。 在AC电压调节中施加到充电器的AC电压不小于图像载体开始充电的充电开始电压Vth的两倍。

公开(公告)号：US20090060554A1

公开(公告)日：2009-03-05

申请号：US12201396

申请日：2008-08-29

申请人： Akio KOSUGE ,  Takaya Muraishi ,  Takeshi Shintani ,  Yasushi Akiba ,  Satoshi Hatori ,  Kaoru Yoshino

发明人： Akio KOSUGE ,  Takaya Muraishi ,  Takeshi Shintani ,  Yasushi Akiba ,  Satoshi Hatori ,  Kaoru Yoshino

IPC分类号： G03G15/00

CPC分类号： G03G15/0225 ,  G03G15/025 ,  G03G2215/0129

摘要： An image forming apparatus includes multiple imaging units and a controller. The multiple imaging units each include a photoconductor, a charging device, a developing device, a retractable cleaner, and a cleaner retraction mechanism. The charging device charges the photoconductor for forming an electrostatic latent image thereon. The developing device develops the electrostatic latent image. The retractable cleaner cleans the charging device when in contact with the charging device. The cleaner retraction mechanism is configured to bring the retractable cleaner into contact with the charging device. The charging device and the photoconductor are installed and replaced in conjunction with each other. The controller calculates a photoconductor usage of each of the multiple imaging units, and individually controls the cleaner retraction mechanism in each of the multiple imaging units according to the calculated photoconductor usage.

摘要翻译： 图像形成装置包括多个成像单元和控制器。 多个成像单元各自包括光电导体，充电装置，显影装置，可伸缩清洁器和清洁器收回机构。 充电装置对用于在其上形成静电潜像的感光体进行充电。 显影装置显影静电潜像。 当与充电装置接触时，可伸缩式清洁器清洁充电装置。 清洁器回缩机构被配置为使可伸缩清洁器与充电装置接触。 充电装置和感光体彼此并置安装和更换。 控制器计算多个成像单元中的每一个的感光体的使用量，并且根据所计算的感光体的使用量分别控制多个成像单元中的每一个中的清洁器缩回机构。

公开(公告)号：US20070297830A1

公开(公告)日：2007-12-27

申请号：US11769066

申请日：2007-06-27

申请人： Akio KOSUGE

发明人： Akio KOSUGE

IPC分类号： G03G21/00

CPC分类号： G03G15/02 ,  G03G15/025 ,  G03G21/06 ,  G03G2221/00

摘要： An image forming apparatus include an image bearer, a charger, and a discharger. The image bearer is configured to bear an electrostatic latent image. The charger is configured to charge the image bearer. The discharger is configured to discharge the image bearer with a discharge light. The amount of the discharge light in image formation is different from the amount of the discharge light in post image-forming processing.

摘要翻译： 图像形成装置包括图像载体，充电器和放电器。 图像载体被配置为承载静电潜像。 充电器被配置为对图像承载进行充电。 放电器被配置为用放电灯对图像载体进行放电。 图像形成中的放电光量与后成像处理中的放电光量不同。