-
公开(公告)号：US06681091B2
公开(公告)日：2004-01-20
申请号：US10141973
申请日：2002-05-10
IPC分类号： G03G1506
CPC分类号： G03G15/08 , G03G2215/0648
摘要： The increasing ratio of development density to increase in potential difference between a photoreceptor and a development roller differs between the region where the potential difference is small and the region where the potential difference is large. The increasing ratio of development density at the region where the potential difference is small is smaller than the increasing ratio of development density at the region where the potential difference is large. Development is conducted under the developing characteristics in which the upper limit of the development density at the region where the increasing ratio of development density is small is at least 0.3.
-
公开(公告)号：US06873813B2
公开(公告)日：2005-03-29
申请号：US10725462
申请日：2003-12-03
CPC分类号： G03G15/08 , G03G2215/0648
摘要： The increasing ratio of development density to increase in potential difference between a photoreceptor and a development roller differs between the region where the potential difference is small and the region where the potential difference is large. The increasing ratio of development density at the region where the potential difference is small is smaller than the increasing ratio of development density at the region where the potential difference is large. Development is conducted under the developing characteristics in which the upper limit of the development density at the region where the increasing ratio of development density is small is at least 0.3.
摘要翻译： 在电位差小的区域和电位差大的区域之间，显影密度与感光体与显影辊之间的电位差增加的比例不同。 电位差小的区域的显影密度的增加率小于电位差大的区域的显影密度增加率。 在发展密度增加比例小的区域的显影密度的上限为0.3以上的显影特性进行显影。
-
3.发明授权Apparatus and method for forming image with high image resolution from images having various dot densities 失效从具有各种点密度的图像形成具有高图像分辨率的图像的装置和方法公开(公告)号：US06417876B1
公开(公告)日：2002-07-09
申请号：US09590639
申请日：2000-06-08
IPC分类号： G03G1500
CPC分类号： H04N1/40037
摘要： A control unit of an image forming apparatus for controlling exposure energy includes a reference image storage unit storing a plurality of reference images, an image recognition unit comparing image information consisting of a plurality of pieces of pixel information with data stored in the reference image storage unit, an exposure energy density storage unit storing an exposure energy density for each reference image stored in the reference image storage unit, an exposure energy density determination unit based on data from the image recognition unit and data in the exposure energy density storage unit an exposure energy density to be applied to a dot position corresponding to each piece of the pixel information, and a laser drive driving a laser of an exposure unit based on data from the exposure energy density determination uni. Accordingly, the image forming apparatus can be provided which exhibits an excellent image reproducibility for images with various dot densities.
摘要翻译： 用于控制曝光能量的图像形成装置的控制单元包括存储多个参考图像的参考图像存储单元，图像识别单元将由多个像素信息组成的图像信息与存储在参考图像存储单元中的数据进行比较 曝光能量密度存储单元，其存储参考图像存储单元中存储的每个参考图像的曝光能量密度;基于来自图像识别单元的数据和曝光能量密度存储单元中的数据的曝光能量密度确定单元，曝光能量 密度被施加到与每个像素信息相对应的点位置，以及激光驱动器，其基于来自曝光能量密度确定单元的数据驱动曝光单元的激光。 因此，可以提供对于具有各种点密度的图像具有优异的图像再现性的图像形成装置。
-
4.发明授权Holographic scanner including a rotary hologram disk between a front hologram and a rear hologram 失效全息扫描器，包括前全息图和后全息图之间的旋转全息图盘
公开(公告)号：US5805315A
公开(公告)日：1998-09-08
申请号：US856954
申请日：1997-05-15
CPC分类号： G02B26/106
摘要： A holographic scanner for scanning a surface with a light beam is provided. The holographic scanner includes a light source for emitting light used as the light beam, a front hologram for diffracting the light emitted from the light source to produce a first diffracted beam, a rotary hologram disk having a disk plane and rotatable around an axis thereof vertical to the disk plane, the rotary hologram disk including a plurality of scanning holograms arranged on the disk plane in a circumferential direction, the scanning holograms diffracting the first diffracted beam to produce a second diffracted beam, and a rear hologram for diffracting the second diffracted beam to produce a third diffracted beam, the third diffracted beam being used as the light beam for illuminating the scanning plane.
摘要翻译： 提供了一种用于用光束扫描表面的全息扫描器。 全息扫描器包括用于发射用作光束的光的光源，用于衍射从光源发射的光以产生第一衍射光束的前全息图，具有盘平面并可围绕其轴线旋转的旋转全息盘 旋转全息图盘包括沿圆周方向布置在盘平面上的多个扫描全息图，扫描全息图衍射第一衍射光束以产生第二衍射光束，以及用于衍射第二衍射光束的后全息图 为了产生第三衍射光束，第三衍射光束被用作照射扫描平面的光束。
-
公开(公告)号：US06323888B1
公开(公告)日：2001-11-27
申请号：US09642131
申请日：2000-08-18
IPC分类号： B41J2385
CPC分类号： G03G15/326 , G03G15/04072 , H04N1/29
摘要： An image forming apparatus has the following characteristics: the diameter of an exposure beam for exposing a latent image is not more than twice a minimum dot recording period p in peak intensity 1/e2, and the value of a spatial frequency characteristic function of a latent image defined by the thickness of a photoreceptor layer, the dielectric constant of the photoreceptor layer, the thickness of a developer layer, the dielectric constant of the developer layer and a spatial frequency &ohgr; defined as &ohgr;=&pgr;/p is at least 0.3. The image forming apparatus having such characteristics can reproduce an image of high resolution exceeding 600 to 1200 DPI with high fidelity.
摘要翻译： 图像形成装置具有以下特征：用于曝光潜像的曝光光束的直径不大于峰值强度1 / e2的最小点记录周期p的两倍，并且潜在的空间频率特征函数的值 由感光体层的厚度，感光体层的介电常数，显影剂层的厚度，显影剂层的介电常数和定义为Ω= pi / p的空间频率Ω定义的图像为至少0.3。 具有这种特征的图像形成装置可以以高保真度再现超过600至1200DPI的高分辨率图像。
-
公开(公告)号：US06298206B1
公开(公告)日：2001-10-02
申请号：US09506304
申请日：2000-02-17
IPC分类号： G03G1508
CPC分类号： G03G15/344 , G03G15/0806 , G03G15/0812 , G03G2215/0614 , G03G2215/0634
摘要： It is an object of the invention that development quality is improved by increasing the amount of charge during the transportation of toner by a toner holding member and decreasing the amount of charge during development for rendering an electrostatic latent image visible. A one-component non-magnetic toner is supplied from a toner supplying unit to the toner holding member such that the toner is electrostatically attracted to adhere to the toner holding member with a large amount of charge. The charge of the toner under transportation is reduced by charge adjusting means such as a conductive roller supplied with a potential from a frictional charging member or a voltage source, whereby the amount of development or the amount of toner adhering to an electrostatic latent image is increased and development quality is improved.
摘要翻译： 本发明的一个目的是通过在调色剂保持部件输送调色剂期间增加电荷量并减少显影期间的电荷量，使静电潜像变得可见，从而提高显影质量。 单色非磁性调色剂从调色剂供应单元供应到调色剂保持构件，使得调色剂被静电吸引以以大量的电荷附着到调色剂保持构件。 运输中的调色剂的电荷通过诸如由摩擦充电部件或电压源提供电位的导电辊等电荷调节装置而减少，由此显影量或与静电潜像粘附的调色剂量增加 开发质量提高。
-
公开(公告)号：US6087056A
公开(公告)日：2000-07-11
申请号：US307180
申请日：1999-05-07
CPC分类号： G03G13/08 , G03G9/0819 , G03G9/0821 , G03G9/0823
摘要： A toner which can exhibit 5 nN or less of inter-particle force calculated by the following equation (1) when the toner is laminated and carried on a toner carrier:Fv=q.multidot.E-Fi (1)where Fv is an inter-particle force, q.multidot.E is a Coulomb force calculated by the following equation:q.multidot.E=q.multidot.{Vb+(Q/M).multidot..delta..multidot.P.multidot.dt.sub.1.sup.2 /(2.epsilon.o.epsilon..sub.T)}/(.epsilon..sub.T .multidot.g+dt.sub.1) (2)where Fi is an image-force calculated by the following equation (3):Fi={(W.sub.1 .multidot..pi.d.sup.3 .multidot..delta.)/(6 .epsilon.o .epsilon..sub.T)}.multidot.(Q/M).sup.2 (3)where q is a quantity of charge [C] of the toner particle to be developed, E is an electric field strength [V/m] acting on the toner layer, Q/M is a toner charge-to-mass ratio [mC/g], W.sub.1 is an amount of toner separated by development among the toner laminated and carried on the toner carrier, .epsilon.o is a vacuum dielectric constant [C/(V.multidot.m)], .epsilon..sub.T is an apparent specific dielectric constant [C/(V.multidot.m)] of the toner layer, d is an average particle size [.mu.m] of the toner, .delta. is a true density [g/cm.sup.3 ] of the toner, g is a gap [mm] between the outermost surface of the toner on the toner carrier and the electrostatic latent image holder, dt.sub.1 is a thickness [.mu.m] of the toner layer on the toner carrier, Vb is a development bias voltage [V] and P is a toner packing rate.The present invention provides a toner and a non-contact developing method using the same which realize stable flying-development by suppressing to 5 nN or less the inter-particle force of the toner other than the image-force acting on the toner laminated and carried on the toner carrier.
摘要翻译： 当调色剂层压并承载在调色剂载体上时，可以通过下列等式（1）计算出5nN或更小的颗粒间力的调色剂：Fv = qxE-Fi（1）其中Fv是颗粒间力 ，qxE是通过以下等式计算的库仑力：qxE = qx {Vb +（Q / M）x delta xPxdt12 /（2 epsilonεT）} /（epsilon Txg + dt1）（2）其中，Fi是图像 - 由下式（3）计算的力：Fi = {（W1x pi d3x delta）/（6 epsilonεT）} x（Q / M）2（3）其中q是电荷量[C] 调色剂颗粒，E是作用在调色剂层上的电场强度[V / m]，Q / M是调色剂电荷质量比[mC / g]，W1是通过显影分离出的调色剂量 在层压并承载在调色剂载体上的调色剂中，ε是真空介电常数[C /（Vxm）]，εT是调色剂层的表观比介电常数[C /（Vxm）]，d是平均 调色剂的粒径μ，δ是真密度[g / cm 3] o f是调色剂，g是调色剂载体上的调色剂的最外表面与静电潜像保持体之间的间隙[mm]，dt1是调色剂载体上调色剂层的厚度μ，Vb是显影剂 偏压[V]和P是调色剂包装率。 本发明提供一种调色剂和非接触显影方法，其使用该调色剂和非接触显影方法，其通过抑制除了作用在层叠和携带的调色剂上的图像力之外的调色剂的颗粒间的力以5NN以下，实现稳定的飞行显影 在调色剂载体上。
-
公开(公告)号：US06433803B1
公开(公告)日：2002-08-13
申请号：US09826199
申请日：2001-04-04
IPC分类号： B41J2385
摘要： An exposure apparatus for image formation uses power control means provided to a laser driver for controlling exposure energy and accordingly forming an image. Specifically, exposure energy is varied depending on an isolated-dot pattern and an isolated-line pattern by changing the pulse height (drive power) of a drive pulse for each dot. Both of the isolated-line and isolated-dot patterns of a high resolution can thus be reproduced with a high image quality without increase of cost due to requirements for accuracy in processing and positioning of a lens and without decrease of life of a photoreceptor due to a decreased thickness of its photosensitive layer.
-
9.发明授权Holographic scanner including a rotary hologram disk between a front hologram and a rear hologram 失效全息扫描器，包括前全息图和后全息图之间的旋转全息图盘
公开(公告)号：US5680232A
公开(公告)日：1997-10-21
申请号：US440211
申请日：1995-05-12
CPC分类号： G02B26/106
摘要： A holographic scanner for scanning a surface with a light beam is provided. The holographic scanner includes a light source for emitting light used as the light beam, a front hologram for diffracting the light emitted from the light source to produce a first diffracted beam, a rotary hologram disk having a disk plane and rotatable around an axis thereof vertical to the disk plane, the rotary hologram disk including a plurality of scanning holograms arranged on the disk plane in a circumferential direction, the scanning holograms diffracting the first diffracted beam to produce a second diffracted beam, and a rear hologram for diffracting the second diffracted beam to produce a third diffracted beam, the third diffracted beam being used as the light beam for illuminating the scanning plane.
摘要翻译： 提供了一种用于用光束扫描表面的全息扫描器。 全息扫描器包括用于发射用作光束的光的光源，用于衍射从光源发射的光以产生第一衍射光束的前全息图，具有盘平面并可围绕其轴线旋转的旋转全息盘 旋转全息图盘包括沿圆周方向布置在盘平面上的多个扫描全息图，扫描全息图衍射第一衍射光束以产生第二衍射光束，以及用于衍射第二衍射光束的后全息图 为了产生第三衍射光束，第三衍射光束被用作照射扫描平面的光束。
-
公开(公告)号：US06714225B2
公开(公告)日：2004-03-30
申请号：US10213427
申请日：2002-08-06
IPC分类号： B04J2385
CPC分类号： H04N1/4055
摘要： When a halftone image region that is below a predetermined density is to be reproduced, a processing unit controlling an exposure unit selects an exposure pattern that can represent a record dot diameter within a range based on a predetermined rule from exposure patterns prepared in advance. Accordingly, graininess is suppressed. When there are a plurality of exposure patterns that can be applied, the exposure pattern with the lowest number of dots present per 1 inch is employed. Accordingly, a halftone image is formed with the image reproducibility improved.
摘要翻译： 当要再现低于预定浓度的半色调图像区域时，控制曝光单元的处理单元基于预先规定的曝光图案，基于预定规则从一个范围内选择可以表示记录点直径的曝光图案。 因此，抑制了颗粒性。 当存在可以应用的多个曝光图案时，采用每1英寸存在最少点数的曝光图案。 因此，形成具有提高图像再现性的半色调图像。
-
-
-
-
-
-
-
-
-
搜索结果
86 条记录 (耗时 0.027 秒)