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1.发明授权Apparatus and method for forming an image using a developing device capable of obtaining a high quality image 有权使用能够获得高质量图像的显影装置形成图像的装置和方法公开(公告)号：US06295437B1
公开(公告)日：2001-09-25
申请号：US09472867
申请日：1999-12-28
IPC分类号： G03G2100
CPC分类号： G03G21/00
摘要： An image forming apparatus includes a latent image bearing member to bear an electrostatic latent image, and a developer bearing member to bear a developer, in which the electrostatic latent image is formed on the latent image bearing member by first uniformly charging the latent image bearing member and then by performing an optical writing operation. The electrostatic latent image is visualized by supplying the developer borne on the developer bearing member to the latent image bearing member. A lubricant for reducing a friction coefficient of a surface of the latent image bearing member is supplied to the latent image bearing member and the lubricant has a charging polarity opposite to that of the developer. The friction coefficient of the latent image bearing member is maintained such that adhering of the developer to a background part of the latent image is prevented as a result of supplying the lubricant to the latent image bearing member. The lubricant, which includes a silicone resin, is supplied to the latent image bearing member such that the friction coefficient of the surface of the latent image bearing member is from about 0.1 to about 0.4. The friction coefficient of the surface of the latent image bearing member is set such that a cleaning device to remove a residual developer on the surface of the latent image bearing member is prevented from being dragged by the latent image bearing member by decreasing a contact resistance between the cleaning device and the surface of the latent image bearing member.
摘要翻译： 图像形成装置包括承载静电潜像的潜像承载部件和承载显影剂的显影剂承载部件，其中通过首先使潜像承载部件均匀地充电，在潜像承载部件上形成静电潜像 然后执行光写入操作。 通过将承载在显影剂承载部件上的显影剂供应到潜像承载部件来显现静电潜像。 用于降低潜像承载部件的表面的摩擦系数的润滑剂被供应到潜像承载部件，并且润滑剂的充电极性与显影剂的极性相反。 保持潜像承载部件的摩擦系数，从而通过向潜像承载部件供给润滑剂，可以防止显影剂对潜像的背景部分的粘附。 将包含硅树脂的润滑剂供应到潜像承载部件，使得潜像承载部件的表面的摩擦系数为约0.1至约0.4。 潜像承载部件的表面的摩擦系数被设定为通过降低潜像承载部件的表面上的残留显影剂来除去潜像承载部件的表面的清洁装置， 清洁装置和潜像承载部件的表面。
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公开(公告)号：US06721516B2
公开(公告)日：2004-04-13
申请号：US10050955
申请日：2002-01-22
申请人： Katsuhiro Aoki , Tsukuru Kai , Hajime Oyama , Osamu Ariizumi , Hisashi Shoji , Takashi Hodoshima , Yasuo Miyoshi
发明人： Katsuhiro Aoki , Tsukuru Kai , Hajime Oyama , Osamu Ariizumi , Hisashi Shoji , Takashi Hodoshima , Yasuo Miyoshi
IPC分类号： G03G1506
CPC分类号： G03G15/0907 , G03G15/065 , G03G2215/0177
摘要： An image forming apparatus of the present invention includes a bias power supply for applying a bias VB to a developer carrier on which a developer is deposited. A charge potential deposited on an image carrier, which faces the developer carrier for forming a latent image thereon, is 400 V or below in absolute value. Assume that the potential of the image carrier is lowered to VL after exposure, that a development potential is |VB−VL|, that the maximum set value of the development potential for development is |VB−VL|max, and that the development potential varies in a range satisfying relations: |VB−VL|≦|VB−VL|max+|VB−VL|max×0.2 |VB−VL|≧|VB−VL|max−|VB−VL|max×0.2 |VB−VL|max≦300 V Then image density varies by a width of 10% of image density corresponding to the maximum set value of the development potential or less.
摘要翻译： 本发明的图像形成装置包括用于将偏压VB施加到其上沉积有显影剂的显影剂载体上的偏置电源。 沉积在图像载体上的电荷电位，其面向用于在其上形成潜像的显影剂载体，其绝对值为400V或更低。 假设图像载体的电位在曝光后降低到VL，显影电位为| VB-VL |，显影发展潜力的最大设定值为| VB-VL | max，显影电位 在满足关系的范围内变化：然后图像浓度根据显影电位的最大设定值或更小的图像浓度的10％的宽度变化。
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公开(公告)号：US06163669A
公开(公告)日：2000-12-19
申请号：US321726
申请日：1999-05-28
CPC分类号： G03G15/75
摘要： An image forming apparatus including a cylindrical image carrier configured to carry an electrostatic latent image while rotating, and a cylindrical developer carrier configured to bear a developer and supply the developer to the image carrier by contacting the image carrier at a nip while rotating, wherein the surface of the image carrier has a friction coefficient of from about 0.1 to about 0.4. The image carrier may be an endless belt.
摘要翻译： 一种图像形成装置，包括被构造为在旋转时承载静电潜像的圆柱形图像载体，以及圆筒状显影剂载体，其构造成承载显影剂并且通过在旋转时在辊隙处接触图像载体将显影剂供应到图像载体，其中 图像载体的表面具有约0.1至约0.4的摩擦系数。 图像载体可以是环形带。
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公开(公告)号：US06901233B2
公开(公告)日：2005-05-31
申请号：US10732482
申请日：2003-12-11
申请人： Katsuhiro Aoki , Tsukuru Kai , Hajime Oyama , Osamu Ariizumi , Hisashi Shoji , Takashi Hodoshima , Yasuo Miyoshi
发明人： Katsuhiro Aoki , Tsukuru Kai , Hajime Oyama , Osamu Ariizumi , Hisashi Shoji , Takashi Hodoshima , Yasuo Miyoshi
CPC分类号： G03G15/0907 , G03G15/065 , G03G2215/0177
摘要： An image forming apparatus of the present invention includes a bias power supply for applying a bias VB to a developer carrier on which a developer is deposited. A charge potential deposited on an image carrier, which faces the developer carrier for forming a latent image thereon, is 400 V or below in absolute value. Assume that the potential of the image carrier is lowered to VL after exposure, that a development potential is |VB−VL|, that the maximum set value of the development potential for development is |VB−VL|max, and that the development potential varies in a range satisfying relations: |VB−VL|≦|VB−VL|max+|VB−VL|max×0.2 |VB−VL|≧|VB−VL|max−|VB−VL|max×0.2 |VB−VL|max≦300 V Then image density varies by a width of 10% of image density corresponding to the maximum set value of the development potential or less.
摘要翻译： 本发明的图像形成装置包括偏置电源，用于将偏压V B B施加到其上沉积显影剂的显影剂载体上。 沉积在图像载体上的电荷电位，其面向用于在其上形成潜像的显影剂载体，其绝对值为400V或更低。 假设曝光后图像载体的电位降低到V L，则显影电位为| V B -V L | L， 开发发展潜力的最大设定值为| V | B | | | | | | | |，并且显影电位在满足关系的范围内变化：<？ -line-formula description =“In-line Formulas”end =“lead”？> | V ＆lt;＆lt;＆lt;＆lt; L＆gt; | max + | V B＆lt; 行公式“end =”tail“？> <？in-line-formula description =”In-line Formulas“end =”lead“？> | V B B> | B | B || V | B | B || B ||||||||,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, .2 <？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> | V B L max <= 300 V <？in-line-formula description =“In-line Formulas”end =“tail”？>然后，图像浓度因 宽度为10％o f图像浓度对应于开发潜力的最大设定值以下。
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5.发明授权Image forming method and apparatus using developer carrier pressed into engagement with image carrier 失效使用显影剂载体压制成与图像载体接合的图像形成方法和装置公开(公告)号：US06608984B1
公开(公告)日：2003-08-19
申请号：US09556968
申请日：2000-04-24
IPC分类号： G03G1508
CPC分类号： G03G15/0818
摘要： An image forming apparatus of the type which develops a latent image on an image carrier with toner stored in a developing unit and transferring the resulting toner image to a recording medium. The developing unit includes a developer carrier which contacts the image carrier at least at two spaced apart points with a gap being formed between the at least two points of contact. A moving mechanism will move opposite ends of the developer carrier independent distances relative to one another so as to eliminate the gap and establish full contact between the image carrier surface and developer carrier surface.
摘要翻译： 一种图像形成装置，其类型是利用存储在显影单元中的调色剂在图像载体上显影潜像并将所得到的调色剂图像转印到记录介质上。 显影单元包括显影剂载体，其至少在两个间隔开的点处接触图像载体，在至少两个接触点之间形成间隙。 移动机构将相对于彼此移动显影剂载体的相对端，以消除间隙并建立图像载体表面和显影剂载体表面之间的完全接触。
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6.发明授权Image forming apparatus, developing device therefor and image forming process unit 有权图像形成装置，其显影装置和图像形成处理单元公开(公告)号：US06463244B2
公开(公告)日：2002-10-08
申请号：US09814726
申请日：2001-03-23
申请人： Katsuhiro Aoki , Hajime Oyama , Takashi Hodoshima
发明人： Katsuhiro Aoki , Hajime Oyama , Takashi Hodoshima
IPC分类号： G03G1508
CPC分类号： G03G15/0808 , G03G2215/0634
摘要： A developing device for an image forming apparatus includes a developing roller for conveying toner deposited thereon to a developing region where it faces a photoconductive element. A magnet brush roller conveys a two-ingredient type developer, which consists of toner and magnetic particles, deposited thereto to a toner supplying region where it faces the developing roller. In the toner supplying region, only the toner is supplied from the magnet brush roller to the developing roller. The distribution of the number of toner particles for an amount of charge differs from the developing roller to the magnet brush roller.
摘要翻译： 用于图像形成装置的显影装置包括用于将沉积在其上的调色剂输送到面向感光体的显影区域的显影辊。 磁刷辊将由调色剂和磁性颗粒组成的双成分型显影剂输送到其面向显影辊的调色剂供应区域。 在调色剂供应区域中，只有调色剂从磁刷刷送到显影辊。 调色剂颗粒数量的分配不同于显影辊到磁刷辊。
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7.发明授权Toner support member and developing device prevented from charging toner by friction 有权调色剂支撑构件和显影装置防止摩擦使调色剂充电公开(公告)号：US06526248B1
公开(公告)日：2003-02-25
申请号：US09662550
申请日：2000-09-15
申请人： Katsuhiro Aoki , Takashi Hodoshima , Hajime Oyama
发明人： Katsuhiro Aoki , Takashi Hodoshima , Hajime Oyama
IPC分类号： G03G1508
CPC分类号： G03G15/0818 , G03G15/0928 , G03G2215/0607 , G03G2215/0634
摘要： A developing device for an image forming apparatus of the type feeding a one-ingredient or two-ingredient type developer, forming a thin toner layer on a developing roller or toner support member and developing a latent image with the toner layer is disclosed. The toner support member has a surface that is chargeable to the same polarity as toner. The toner support member therefore serves to simply support the toner without electrostatically effecting the toner, so that the development of a latent image is free from the influence of the static electricity of the toner support member. This successfully enhances image quality. A photoconductive element has a coefficient of friction &mgr; confined in the range of 0.1
摘要翻译： 公开了一种用于成像装置的显影装置，该装置用于给单成分或双成分型显影剂供给，在显影辊或调色剂支持部件上形成薄的调色剂层，并使该调色剂层显影潜像。 调色剂支撑构件具有可与调色剂充电至相同极性的表面。 因此，调色剂支撑构件用于简单地支撑调色剂，而不会静电地影响调色剂，使得潜像的显影不受调色剂支撑构件的静电的影响。 这成功地提高了图像质量。 感光元件的摩擦系数μ限制在0.1 <0.4之间，防止调色剂沉积并污染元件的背景区域。 此外，光电导元件的表面被保护并且其使用寿命延长。 此外，调色剂支撑构件的硬度HS位于通过JIS（日本工业标准）A等级测量的10°<= HS <= 45°的范围内，实现光滑的表面，从而确保均匀的显影特性。 还公开了一种包括显影装置的成像设备。
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8.发明授权Development method apparatus, image formation and process cartridge for suppressing variation in toner charge 有权用于抑制调色剂电荷变化的显影方法装置，图像形成和处理盒公开(公告)号：US06658227B2
公开(公告)日：2003-12-02
申请号：US10188756
申请日：2002-07-05
申请人： Hajime Oyama , Tsukuru Kai , Katsuhiro Aoki , Takashi Hodoshima , Yasuo Miyoshi , Ichiro Kadota
发明人： Hajime Oyama , Tsukuru Kai , Katsuhiro Aoki , Takashi Hodoshima , Yasuo Miyoshi , Ichiro Kadota
IPC分类号： G03F1508
CPC分类号： G03G13/08 , G03G2215/0636
摘要： The development is performed under a condition that |Q2|−|Q1|/|Q1≦±0.45. Here, Q1 denotes an average amount of charge on toner held on a development roller and carried toward a development region immediately before development. Q2 denotes an average amount of charge on toner immediately before development held and carried toward the development region in the state immediately after development of an electrostatic latent image on a development drum. This is effective to allow the amount of charge q/m on toner held on the development roller to have a variation rate of 45% or below and an afterimage rate R within 2%.
摘要翻译： 在| Q2 | - | Q1 | / | Q1 <=±0.45的条件下进行显影。 这里，Q1表示保持在显影辊上的调色剂上的平均充电量，并且紧靠显影前的显影区域携带。 Q2表示紧接在显影鼓上的静电潜像显影后立即显影状态下保持并承载于显影区域的调色剂上的平均电荷量。 这有助于使显影辊上保持的调色剂上的电荷量q / m具有45％以下的变化率和2％以内的残像率R。
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公开(公告)号：US06505014B2
公开(公告)日：2003-01-07
申请号：US09964794
申请日：2001-09-28
申请人： Katsuhiro Aoki , Hisashi Shoji , Tsukuru Kai , Hajime Oyama , Noriyoshi Tarumi , Takashi Hodoshima , Yasuo Miyoshi
发明人： Katsuhiro Aoki , Hisashi Shoji , Tsukuru Kai , Hajime Oyama , Noriyoshi Tarumi , Takashi Hodoshima , Yasuo Miyoshi
IPC分类号： G03G1506
CPC分类号： G03G15/065 , G03G13/08
摘要： An image forming apparatus of the present invention includes an image carrier made up of a conductive base and photoconductive layer and a toner carrier to which a bias for development is applied. The toner carrier conveys toner deposited thereon to a developing position where the toner carrier faces the image carrier, thereby developing a latent image formed on the image carrier. The apparatus effects low-voltage development that protects the image carrier from electrostatic fatigue, obviates background contamination, and realizes image density as high as 0.5 ×10−3 g/cm2 or above in terms of the amount of toner deposition. Further, the apparatus implements faithful development of the latent image by reducing the edge effect. An image forming process unit removable from the apparatus is also disclosed.
摘要翻译： 本发明的图像形成装置包括由导电基底和光电导层构成的图像载体和施加偏压的调色剂载体。 调色剂载体将沉积在其上的调色剂输送到显影位置，在该显影位置调色剂载体面向图像载体，从而显影形成在图像载体上的潜像。 该装置实现低电压显影，其保护图像载体免受静电疲劳，消除背景污染，并且根据调色剂沉积量实现高达0.5×10 -3 g / cm 2或更高的图像密度。 此外，该装置通过减少边缘效应来实现潜像的忠实发展。 还公开了可从该装置移除的图像形成处理单元。
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10.发明申请Image Formation Apparatus, Driving Control Method, And Computer Program Product 有权图像形成装置，驾驶控制方法和计算机程序产品公开(公告)号：US20120163846A1
公开(公告)日：2012-06-28
申请号：US13302296
申请日：2011-11-22
CPC分类号： G03G15/1615 , G03G15/0131 , G03G15/0189 , G03G15/5008 , G03G15/5054 , G03G15/6564 , G03G2215/00059 , G03G2215/00075 , G03G2215/00156 , G03G2215/00599
摘要： An image formation apparatus includes an image carrier; a driving source generating a driving force for the image carrier; a drive transmission unit; a driving control unit controlling the driving source; an image formation unit forming an image on a surface of the image carrier; a transfer nip between a transfer member and the surface of the image carrier; a driving-force exerting unit exerting a driving force on any one of the image carrier and a first drive transmission member on a drive transmission path, and a specific drive transmission member imparting weakest spring characteristics among drive transmission members to a drive transmission system; a detecting unit detecting an estimation parameter used in estimating a driving-load-torque variation amount of the image carrier; a torque-variation-amount estimation unit; and a driving-force control unit controlling the driving force to cancel the driving-load-torque variation.
摘要翻译： 图像形成装置包括图像载体; 产生图像载体的驱动力的驱动源; 驱动传动单元; 控制驱动源的驱动控制单元; 在图像载体的表面上形成图像的图像形成单元; 在转印构件和图像载体的表面之间的转印辊隙; 驱动力施加单元对驱动传递路径上的图像载体和第一驱动传递构件中的任一个施加驱动力，以及在驱动传递构件之间赋予驱动传动系统最弱的弹簧特性的特定驱动传递构件; 检测单元，检测在估计图像载体的驱动负载 - 转矩变化量时使用的估计参数; 扭矩变化量估计单元; 以及驱动力控制单元，其控制驱动力以抵消驱动负载 - 转矩变化。
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