公开(公告)号：US07869743B2

公开(公告)日：2011-01-11

申请号：US11790288

申请日：2007-04-24

申请人： Toshiaki Kagawa ,  Kouji Shinkawa ,  Tohru Sakuwa

发明人： Toshiaki Kagawa ,  Kouji Shinkawa ,  Tohru Sakuwa

IPC分类号： G03G15/02

CPC分类号： G03G15/0233

摘要： An image forming apparatus in which a charging roller charges an image carrier to which a lubricant is applied prevents slip of the charging roller. The charging roller is composed of a metal core and a rubber layer mainly made of an epichlorohydrin rubber formed around the metal core. A surface of this rubber layer is hardened with a surface treating solution containing an isocyanate compound. The surface of this rubber layer is also subjected to three abrading processes including two stone grinding processes and one lapping process so that a ten-point height of irregularities Rz thereof becomes 11 μm or more.

摘要翻译： 一种图像形成装置，其中充电辊对施加了润滑剂的图像载体充电，防止了充电辊的滑动。 充电辊由金属芯和主要由形成在金属芯周围的表氯醇橡胶制成的橡胶层组成。 该橡胶层的表面用含有异氰酸酯化合物的表面处理溶液硬化。 该橡胶层的表面也进行三次研磨处理，包括两次研磨处理和一次研磨处理，使得其不均匀度Rz的十点高度为11μm以上。

公开(公告)号：US07934316B2

公开(公告)日：2011-05-03

申请号：US12585130

申请日：2009-09-04

申请人： Toshiaki Kagawa ,  Kouji Shinkawa ,  Tohru Sakuwa

发明人： Toshiaki Kagawa ,  Kouji Shinkawa ,  Tohru Sakuwa

IPC分类号： B21K1/02 ,  F16C13/00

CPC分类号： G03G15/0233 ,  Y10T29/49544 ,  Y10T29/4956 ,  Y10T29/49563

摘要： An object of the present invention is to provide a charging roller (i) which includes a rubber member whose surface is subjected to a hardening treatment using a solvent containing at least an isocyanate compound and (ii) which can prevent leakage of an ionic conductive agent even if the charging roller is placed under conditions of high temperature and high humidity for a long time. The charging roller is made by forming a rubber layer on a metal core. The rubber layer is an epichlorohydrin based rubber base material to which an ionic conductive agent is added, the rubber layer being subjected to a surface treatment by applying a solution containing the isocyanate compound and heating it. This surface treatment is carried out under such conditions that a coefficient of dynamic friction at a contact portion between the rubber layer and a photoreceptor becomes 0.4 or less.

摘要翻译： 本发明的目的是提供一种充电辊（i），其包括使用至少含有异氰酸酯化合物的溶剂对其表面进行硬化处理的橡胶构件，和（ii）能够防止离子导电剂泄漏的充电辊 即使充电辊长时间处于高温高湿的条件下。 充电辊通过在金属芯上形成橡胶层而制成。 橡胶层是加入离子性导电剂的表氯醇类橡胶基材，通过涂布含有异氰酸酯化合物的溶液进行加热，对橡胶层进行表面处理。 该表面处理在橡胶层和感光体的接触部的动摩擦系数为0.4以下的条件下进行。

公开(公告)号：US07668484B2

公开(公告)日：2010-02-23

申请号：US11783152

申请日：2007-04-06

申请人： Toshiaki Kagawa ,  Kouji Shinkawa ,  Tohru Sakuwa

发明人： Toshiaki Kagawa ,  Kouji Shinkawa ,  Tohru Sakuwa

IPC分类号： G03G15/02

CPC分类号： G03G15/0233

摘要： The invention delivers a charging roller which is capable of preventing current leakage to a photoreceptor throughout life-time and which has a stable resistance value throughout life-time. The charging roller contains a metal core and a rubber layer formed on the core. The rubber layer is an epichlorohydrin-based rubber base material to which an electronic conductive agent and an ionic conductive agent are added. The rubber layer is subjected to surface processing by spraying the surface with a solution containing an isocyanate compound and heating. The amount of the electronic conductive agent added to the rubber base material is limited so that a volume resistivity when only the electronic conductive agent is added to the rubber base material is 1.46×106 Ω·cm or greater. In addition, the amount of the added ionic conductive agent is increased so that a volume resistivity when the electronic conductive agent and the ionic conductive agent are added to the rubber base material is 1.93×106 Ω·cm or less.

摘要翻译： 本发明提供一种充电辊，其能够在整个寿命期间防止电流对感光体的泄漏，并且在整个寿命期间具有稳定的电阻值。 充电辊包含形成在芯上的金属芯和橡胶层。 橡胶层是添加有电子导电剂和离子性导电剂的表氯醇类橡胶基材。 橡胶层通过用含有异氰酸酯化合物的溶液喷涂表面进行表面处理并加热。 添加到橡胶基材中的电子导电剂的量受到限制，使得只有电子导电剂添加到橡胶基材中时的体积电阻率为1.46×10 6Ω·cm以上。 此外，添加离子导电剂的量增加，使得当将电子导电剂和离子导电剂添加到橡胶基材时的体积电阻率为1.93×10 6Ω·cm·cm以下。

公开(公告)号：US20070253740A1

公开(公告)日：2007-11-01

申请号：US11790288

申请日：2007-04-24

申请人： Toshiaki Kagawa ,  Kouji Shinkawa ,  Tohru Sakuwa

发明人： Toshiaki Kagawa ,  Kouji Shinkawa ,  Tohru Sakuwa

IPC分类号： G03G15/02

CPC分类号： G03G15/0233

摘要： An image forming apparatus in which a charging roller charges an image carrier to which a lubricant is applied prevents slip of the charging roller. The charging roller is composed of a metal core and a rubber layer mainly made of an epichlorohydrin rubber formed around the metal core. A surface of this rubber layer is hardened with a surface treating solution containing an isocyanate compound. The surface of this rubber layer is also subjected to three abrading processes including two,stone grinding processes and one lapping process so that a ten-point height of irregularities Rz thereof becomes 11 μm or more.

摘要翻译： 一种图像形成装置，其中充电辊对施加了润滑剂的图像载体充电，防止了充电辊的滑动。 充电辊由金属芯和主要由形成在金属芯周围的表氯醇橡胶制成的橡胶层组成。 该橡胶层的表面用含有异氰酸酯化合物的表面处理溶液硬化。 该橡胶层的表面也进行三次研磨处理，其中包括两次，磨石工艺和一次研磨工艺，使得其十点高度的不规则Rz变为11μm或更大。

公开(公告)号：US20070253737A1

公开(公告)日：2007-11-01

申请号：US11783152

申请日：2007-04-06

申请人： Toshiaki Kagawa ,  Kouji Shinkawa ,  Tohru Sakuwa

发明人： Toshiaki Kagawa ,  Kouji Shinkawa ,  Tohru Sakuwa

IPC分类号： G03G15/02

CPC分类号： G03G15/0233

摘要： The invention delivers a charging roller which is capable of preventing current leakage to a photoreceptor throughout life-time and which has a stable resistance value throughout life-time. The charging roller contains a metal core and a rubber layer formed on the core. The rubber layer is an epichlorohydrin-based rubber base material to which an electronic conductive agent and an ionic conductive agent are added. The rubber layer is subjected to surface processing by spraying the surface with a solution containing an isocyanate compound and heating. The amount of the electronic conductive agent added to the rubber base material is limited so that a volume resistivity when only the electronic conductive agent is added to the rubber base material is 1.46×106 Ω·cm or greater. In addition, the amount of the added ionic conductive agent is increased so that a volume resistivity when the electronic conductive agent and the ionic conductive agent are added to the rubber base material is 1.93×106 Ω·cm or less.

摘要翻译： 本发明提供一种充电辊，其能够在整个寿命期间防止电流对感光体的泄漏，并且在整个寿命期间具有稳定的电阻值。 充电辊包含形成在芯上的金属芯和橡胶层。 橡胶层是添加有电子导电剂和离子性导电剂的表氯醇类橡胶基材。 橡胶层通过用含有异氰酸酯化合物的溶液喷涂表面进行表面处理并加热。 添加到橡胶基材中的电子导电剂的量被限制，使得只有电子导电剂添加到橡胶基材中时的体积电阻率为1.46×10 -6Ω或更大。 此外，添加的离子导电剂的量增加，使得当将电子导电剂和离子导电剂添加到橡胶基材时的体积电阻率为1.93×10 -6Ωcm或 减。

公开(公告)号：US20100003413A1

公开(公告)日：2010-01-07

申请号：US12585130

申请日：2009-09-04

申请人： Toshiaki Kagawa ,  Kouji Shinkawa ,  Tohru Sakuwa

发明人： Toshiaki Kagawa ,  Kouji Shinkawa ,  Tohru Sakuwa

IPC分类号： B05D3/10

CPC分类号： G03G15/0233 ,  Y10T29/49544 ,  Y10T29/4956 ,  Y10T29/49563

摘要： An object of the present invention is to provide a charging roller (i) which includes a rubber member whose surface is subjected to a hardening treatment using a solvent containing at least an isocyanate compound and (ii) which can prevent leakage of an ionic conductive agent even if the charging roller is placed under conditions of high temperature and high humidity for a long time. The charging roller is made by forming a rubber layer on a metal core. The rubber layer is an epichlorohydrin based rubber base material to which an ionic conductive agent is added, the rubber layer being subjected to a surface treatment by applying a solution containing the isocyanate compound and heating it. This surface treatment is carried out under such conditions that a coefficient of dynamic friction at a contact portion between the rubber layer and a photoreceptor becomes 0.4 or less.

摘要翻译： 本发明的目的是提供一种充电辊（i），其包括使用至少含有异氰酸酯化合物的溶剂对其表面进行硬化处理的橡胶构件，和（ii）能够防止离子导电剂泄漏的充电辊 即使充电辊长时间处于高温高湿的条件下。 充电辊通过在金属芯上形成橡胶层而制成。 橡胶层是加入离子性导电剂的表氯醇类橡胶基材，通过涂布含有异氰酸酯化合物的溶液进行加热，对橡胶层进行表面处理。 该表面处理在橡胶层和感光体的接触部的动摩擦系数为0.4以下的条件下进行。

公开(公告)号：US20070271792A1

公开(公告)日：2007-11-29

申请号：US11785651

申请日：2007-04-19

申请人： Toshiaki Kagawa ,  Kouji Shinkawa ,  Tohru Sakuwa

发明人： Toshiaki Kagawa ,  Kouji Shinkawa ,  Tohru Sakuwa

IPC分类号： G03G15/02 ,  B23P17/00

CPC分类号： G03G15/0233 ,  Y10T29/49544 ,  Y10T29/4956 ,  Y10T29/49563

摘要： An object of the present invention is to provide a charging roller (i) which includes a rubber member whose surface is subjected to a hardening treatment using a solvent containing at least an isocyanate compound and (ii) which can prevent leakage of an ionic conductive agent even if the charging roller is placed under conditions of high temperature and high humidity for a long time. The charging roller is made by forming a rubber layer on a metal core. The rubber layer is an epichlorohydrin based rubber base material to which an ionic conductive agent is added, the rubber layer being subjected to a surface treatment by applying a solution containing the isocyanate compound and heating it. This surface treatment is carried out under such conditions that a coefficient of dynamic friction at a contact portion between the rubber layer and a photoreceptor becomes 0.4 or less.

摘要翻译： 本发明的目的是提供一种充电辊（i），其包括使用至少含有异氰酸酯化合物的溶剂对其表面进行硬化处理的橡胶构件，和（ii）能够防止离子导电剂泄漏的充电辊 即使充电辊长时间处于高温高湿的条件下。 充电辊通过在金属芯上形成橡胶层而制成。 橡胶层是加入离子性导电剂的表氯醇类橡胶基材，通过涂布含有异氰酸酯化合物的溶液进行加热，对橡胶层进行表面处理。 该表面处理在橡胶层和感光体的接触部的动摩擦系数为0.4以下的条件下进行。

公开(公告)号：US20070253738A1

公开(公告)日：2007-11-01

申请号：US11783506

申请日：2007-04-10

申请人： Tohru Sakuwa ,  Kouji Shinkawa ,  Toshiaki Kagawa

发明人： Tohru Sakuwa ,  Kouji Shinkawa ,  Toshiaki Kagawa

IPC分类号： G03G15/02

CPC分类号： G03G15/0216 ,  G03G15/5033

摘要： In an image forming apparatus in which a charging roller charges a photoreceptor which is rotating at high speed, damages of the photoreceptor and the charging roller are prevented. The photoreceptor included in an electrophotographic image forming apparatus is rotated at high speed so that a speed of a peripheral surface of the photoreceptor is 225 mm per second or more. Then, the charging roller is rotated by contacting the photoreceptor, so as to charge the photoreceptor. Here, a surface pressure M of a contact portion between the photoreceptor and the charging roller is set to more than 0.8 g/mm2 but not more than 3.5 g/mm2.

摘要翻译： 在充电辊对高速旋转的感光体充电的图像形成装置中，防止了感光体和充电辊的损伤。 包含在电子照相图像形成装置中的感光体以高速旋转，使得感光体的圆周表面的速度为每秒225毫米。 然后，通过使感光体接触使充电辊旋转，从而对感光体充电。 这里，感光体和充电辊之间的接触部分的表面压力M设定为大于0.8g / mm 2，但不超过3.5g / mm 2， 。

公开(公告)号：US5842089A

公开(公告)日：1998-11-24

申请号：US899481

申请日：1997-07-24

申请人： Hisashi Kunihiro ,  Kouji Shinkawa ,  Masato Asanuma ,  Yukihisa Imaue ,  Itaru Kawabata

发明人： Hisashi Kunihiro ,  Kouji Shinkawa ,  Masato Asanuma ,  Yukihisa Imaue ,  Itaru Kawabata

IPC分类号： G03G15/08 ,  G03G15/01

CPC分类号： G03G15/08 ,  G03G15/0803 ,  G03G2215/00042 ,  G03G2215/0602 ,  G03G2215/0619

摘要： The present invention is intended to provide a compact development apparatus using a nonmagnetic one-component toner. The apparatus comprises a toner storage container, a toner supply roller, a toner passage through which supplied toner passes, and an attracting fan for attracting the toner and generating a toner powder stream. The toner is held in the toner storage container. The toner supply roller supplies the toner from a supply port of the storage container. The toner passage is provided with an opening opposite to a photosensitive drum. The toner supplied into the toner passage and frictionally charged is attracted by the attracting fan. The toner travels from the opening to the drum. The toner adheres to an electrostatic latent image on the drum and thus the image is developed. Unused toner is transported into the toner passage and recovered.

摘要翻译： 本发明旨在提供一种使用非磁性单组分调色剂的紧凑型显影装置。 该设备包括调色剂存储容器，调色剂供给辊，供给的调色剂通过的调色剂通道和用于吸引调色剂并产生调色剂粉末流的吸引风扇。 调色剂被保持在调色剂储存容器中。 调色剂供应辊从存储容器的供应口供应调色剂。 调色剂通道设置有与感光鼓相对的开口。 供给到调色剂通道中并且摩擦带电的调色剂被吸引风扇吸引。 墨粉从开口行进到滚筒。 调色剂粘附在鼓上的静电潜像上，从而显影图像。 未使用的调色剂被输送到调色剂通道并回收。

公开(公告)号：US06405009B1

公开(公告)日：2002-06-11

申请号：US09679614

申请日：2000-10-05

申请人： Kouji Shinkawa ,  Takashi Sakai ,  Takayuki Yamanaka ,  Atsushi Inoue ,  Jitsuo Masuda

发明人： Kouji Shinkawa ,  Takashi Sakai ,  Takayuki Yamanaka ,  Atsushi Inoue ,  Jitsuo Masuda

IPC分类号： G03G1508

CPC分类号： G03G21/12 ,  G03G21/105

摘要： In image forming apparatuses producing recycled toner from residual toner and recycling the recycled toner, the toner composition changes, and the toner properties worsen, because the external additive contained in the collected residual toner that is collected with a cleaning portion decreases during the image formation. The residual toner that has been collected with the cleaning portion is conveyed through a conveyance path to a collected residual toner storage, and external additive is supplemented from an external additive cartridge, and mixed with being stirred to produce recycled toner. In a fresh toner storage, fresh toner and recycled toner are stirred, and when the amount of toner in a developing portion drops below a predetermined amount, toner is conveyed from the fresh toner storage through a conveyance path to the developing portion. The toner that has been conveyed to the developing portion is supplied to a photosensitive drum.

摘要翻译： 在从残留调色剂生成再循环调色剂并再循环再利用调色剂的图像形成设备中，调色剂组合物变化，并且由于在图像形成期间由清洁部分收集的收集的残留调色剂中所含的外部添加剂减少，调色剂特性恶化。 已经用清洁部分收集的残留调色剂通过输送路径被输送到收集的残留调色剂储存器，并且外部添加剂由外部添加剂盒补充，并且被搅拌混合以产生再循环调色剂。 在新鲜的调色剂存储器中，搅拌新鲜的调色剂和回收的调色剂，并且当显影部分中的调色剂的量降到预定量以下时，调色剂从新鲜的调色剂储存器通过输送路径输送到显影部分。 被输送到显影部分的调色剂被提供给感光鼓。