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1.发明授权Image forming apparatus and method having exposure control depending on first and second density patches 失效具有取决于第一和第二密度贴片的曝光控制的图像形成装置和方法公开(公告)号：US07616908B2
公开(公告)日：2009-11-10
申请号：US11477234
申请日：2006-06-29
IPC分类号： G03G15/00
CPC分类号： G03G15/043 , G03G15/5041 , G03G15/5062
摘要： An image forming apparatus according to an aspect of this invention includes: a photoconductive unit; an exposure unit outputting a pulse-width-modulated light signal and exposing the photoconductive unit; a developing unit developing the photoconductive unit and forming a developed image on the photoconductive unit; a transfer unit transferring the developed image to a transfer target unit and forming a transferred image; an image patch generating unit generating an image patch formed by a predetermined pattern; a sensor unit detecting density information of the developed image of the image patch formed on the photoconductive unit or the transferred image of the image patch formed on the transfer target unit; and an image quality maintenance control unit deciding a proper quantity of exposure and a proper pulse width on the basis of the density information detected by the sensor unit and set the decided proper quantity of exposure and the proper pulse width in the exposure unit.
摘要翻译： 根据本发明的一个方面的图像形成装置包括：光电导单元; 曝光单元，输出脉冲宽度调制的光信号并曝光所述光电导单元; 显影单元显影光导单元并在光电导单元上形成显影图像; 转印单元，将显影图像转印到转印目标单元并形成转印图像; 产生由预定图案形成的图像补片的图像块生成单元; 传感器单元，其检测形成在所述感光单元上的所述显影图像的显影图像或形成在所述转印目标单元上的所述图像补片的转印图像的浓度信息; 以及图像质量维护控制单元，基于由所述传感器单元检测到的浓度信息来确定适当的曝光量和适当的脉冲宽度，并且设置曝光单元中所确定的适当的曝光量和适当的脉冲宽度。
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公开(公告)号：US20080003003A1
公开(公告)日：2008-01-03
申请号：US11477234
申请日：2006-06-29
IPC分类号： G03G15/00 , G03G15/043
CPC分类号： G03G15/043 , G03G15/5041 , G03G15/5062
摘要： An image forming apparatus according to an aspect of this invention includes: a photoconductive unit; an exposure unit outputting a pulse-width-modulated light signal and exposing the photoconductive unit; a developing unit developing the photoconductive unit and forming a developed image on the photoconductive unit; a transfer unit transferring the developed image to a transfer target unit and forming a transferred image; an image patch generating unit generating an image patch formed by a predetermined pattern; a sensor unit detecting density information of the developed image of the image patch formed on the photoconductive unit or the transferred image of the image patch formed on the transfer target unit; and an image quality maintenance control unit deciding a proper quantity of exposure and a proper pulse width on the basis of the density information detected by the sensor unit and set the decided proper quantity of exposure and the proper pulse width in the exposure unit.
摘要翻译： 根据本发明的一个方面的图像形成装置包括：光电导单元; 曝光单元，输出脉冲宽度调制的光信号并曝光所述光电导单元; 显影单元显影光导单元并在光电导单元上形成显影图像; 转印单元，将显影图像转印到转印目标单元并形成转印图像; 产生由预定图案形成的图像补片的图像块生成单元; 传感器单元，其检测形成在所述感光单元上的所述显影图像的显影图像或形成在所述转印目标单元上的所述图像补片的转印图像的浓度信息; 以及图像质量维护控制单元，基于由所述传感器单元检测到的浓度信息来确定适当的曝光量和适当的脉冲宽度，并且设置曝光单元中所确定的适当的曝光量和适当的脉冲宽度。
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公开(公告)号：US20110200352A1
公开(公告)日：2011-08-18
申请号：US13025392
申请日：2011-02-11
CPC分类号： G03G15/0258
摘要： An image forming apparatus includes a photoreceptor, a charging roller and a guide member. The guide member is disposed near an outer circumferential surface of the charging roller, and extends in an axial direction of the charging roller, a cleaning member for cleaning the charging roller is engaged with and disengaged from the guide member, and the guide member guides the cleaning member in the axial direction of the charging roller.
摘要翻译： 图像形成装置包括感光体，充电辊和引导构件。 引导构件设置在充电辊的外周表面附近，并且在充电辊的轴向方向上延伸，用于清洁充电辊的清洁构件与引导构件接合和分离，并且引导构件引导 清洁构件在充电辊的轴向方向上。
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公开(公告)号：US20110064460A1
公开(公告)日：2011-03-17
申请号：US12859582
申请日：2010-08-19
IPC分类号： G03G15/02
CPC分类号： G03G15/0266
摘要： An image forming apparatus includes an image carrier, a charging member which charges the image carrier and is arranged to provide an interval between itself and the image carrier, a power source to apply a voltage to the charging member, a measuring section to measure a voltage or a current between the image carrier and the charging member, and a gap adjustment section to adjust a gap between the image carrier and the charging member based on a measurement result of the voltage or the current.
摘要翻译： 图像形成装置包括图像载体，对图像载体进行充电并且被设置成在其与图像载体之间提供间隔的充电构件，向充电构件施加电压的电源，测量电压 或图像载体和充电构件之间的电流，以及间隙调整部，其基于电压或电流的测量结果来调整图像载体和充电构件之间的间隙。
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5.发明申请IMAGE FORMING APPARATUS AND IMAGE QUALITY ADJUSTMENT METHOD OF IMAGE FORMING APPARATUS 失效图像形成装置和图像质量调整方法图像形成装置公开(公告)号：US20090128870A1
公开(公告)日：2009-05-21
申请号：US12255351
申请日：2008-10-21
IPC分类号： G03F3/08
CPC分类号： H04N1/4078 , H04N1/40006
摘要： A reading section outputs density information of a gradation pattern image of a recording member. A gradation correction characteristic generation section generates a first gradation correction characteristic f(x). At first image quality adjustment, a detection section detects densities of patch pattern images on an image carrier, and the gradation correction characteristic generation section generates a second gradation correction characteristic g(x). At normal image quality adjustment, the detection section detects densities of patch pattern images on the image carrier, and the gradation correction characteristic generation section generates a second gradation correction characteristic g′(x). A calculation section calculates a difference gradation correction characteristic g″(x) between the gradation correction characteristic g(x) and the second gradation correction characteristic g′(x). An image quality maintaining control section multiplies the difference gradation correction characteristic g″(x) by the first gradation correction characteristic f(x), and adjusts an image quality of an image formed on the recording member.
摘要翻译： 读取部输出记录部件的灰度图案图像的浓度信息。 灰度校正特征生成部生成第一灰度校正特性f（x）。 在第一图像质量调整中，检测部检测图像载体上的贴片图案图像的浓度，灰度校正特征生成部生成第二灰度校正特性g（x）。 在正常图像质量调整中，检测部检测图像载体上的贴片图案图像的浓度，灰度校正特征生成部生成第二灰度校正特性g'（x）。 计算部分计算灰度校正特性g（x）和第二灰度校正特性g'（x）之间的差分灰度校正特性g“（x）。 图像质量维持控制部将差分灰度校正特性g“（x）乘以第一灰度校正特性f（x），并调节在记录部件上形成的图像的图像质量。
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公开(公告)号：US20120063804A1
公开(公告)日：2012-03-15
申请号：US13223798
申请日：2011-09-01
IPC分类号： G03G15/02
CPC分类号： G03G15/0258 , G03G15/0225
摘要： A charging device includes a charging member that is arranged close to a rotating charge target member, and charges a charge target surface of the charge target member while rotating, a cleaning member that makes friction contact with the charging member to cause the charging member to be driven and rotated, and cleans a surface of the charging member, and a cleaning member driving part to rotate and drive the cleaning member.
摘要翻译： 充电装置包括充电构件，其布置成靠近旋转的充电目标构件，并且在旋转时对充电目标构件的充电目标表面进行充电;清洁构件，其与充电构件摩擦接触以使充电构件为 驱动和旋转，并且清洁充电构件的表面，以及清洁构件驱动部分，以旋转和驱动清洁构件。
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7.发明申请公开(公告)号：US20110293330A1
公开(公告)日：2011-12-01
申请号：US13150681
申请日：2011-06-01
IPC分类号： G03G15/02
CPC分类号： G03G15/0233 , G03G15/025
摘要： An image forming apparatus includes: a photoconductor that rotates about a first rotation axis; and a charging roller that rotates about a second rotation axis which is parallel to the first rotation axis, wherein the charging roller includes a conductive roller portion that extends in parallel with the first rotation axis and contains an ion-conductive agent, a flange portion that is provided on an outer peripheral surface of the conductive roller portion further to the outside than an image forming area of the photoconductor in the second rotation axis direction so as to protrude outward from the outer peripheral surface in the radial direction of the conductive roller portion into a flange shape, and an insulating elastic layer that coats the outer peripheral surface of the flange portion and has an elasticity higher than that of a photoconductive surface of the photoconductor.
摘要翻译： 一种图像形成装置包括：围绕第一旋转轴线旋转的感光体; 以及充电辊，其围绕与第一旋转轴线平行的第二旋转轴线旋转，其中充电辊包括与第一旋转轴线平行延伸并包含离子导电剂的导电辊部分，凸缘部分 在导电性辊部的外周面上设置成比第二旋转轴方向上的感光体的图像形成区域更向外侧突出，从而从导电性辊部的径向的外周面向外突出， 凸缘形状，以及覆盖凸缘部的外周面并具有比感光体的光电导面高的弹性的绝缘弹性层。
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8.发明授权Image forming apparatus using an electrophotographic process and image forming method 失效使用电子照相法和图像形成方法的图像形成装置公开(公告)号：US07583908B2
公开(公告)日：2009-09-01
申请号：US11492382
申请日：2006-07-25
IPC分类号： G03G15/00 , G03G15/043 , G03G13/04 , B41J2/385
CPC分类号： G03G15/5058 , G03G15/0131 , G03G2215/00059 , G03G2215/0132
摘要： An image forming apparatus of the invention includes a photoconductor, an exposure unit to expose the photoconductor, a developing unit to develop the photoconductor to form a developed image, a transfer unit to transfer the developed image onto a transfer-receiving member, an image patch creation unit to create an image patch including a minute point, a sensor unit to detect density information of a developed image of the image patch formed on the photoconductor or a transfer image of the image patch formed on the transfer-receiving member, and a picture quality maintaining control unit to change, in a case where the density information detected by the sensor unit is outside a range of a specified reference density, an exposure parameter for forming an image of the minute point so that the density information falls within the range of the specified reference density.
摘要翻译： 本发明的图像形成装置包括光电导体，曝光光电导体的曝光单元，用于显影感光体以形成显影图像的显影单元，将显影图像转印到转印接收部件上的转印单元， 创建单元以创建包括微小点的图像补丁，用于检测形成在光电导体上的图像补丁的显影图像的密度信息的传感器单元或形成在转印接收构件上的图像补丁的转印图像，以及图像 质量保持控制单元在由传感器单元检测到的浓度信息在指定参考浓度的范围之外的情况下，改变形成微小点的图像的曝光参数，使得浓度信息落在 指定的参考密度。
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公开(公告)号：US20120063794A1
公开(公告)日：2012-03-15
申请号：US13215448
申请日：2011-08-23
CPC分类号： G03G15/025
摘要： An image forming apparatus according to the embodiments includes a photoconductor, a charging unit which charges the photoconductor and is disposed to face the photoconductor in a non-contact manner, a positioning portion which changes a gap interposed between the photoconductor and the charging unit, on the basis of at least the temperature.
摘要翻译： 根据实施例的图像形成装置包括光电导体，对感光体进行充电并且以非接触方式面对光电导体的充电单元，改变插入在感光体和充电单元之间的间隙的定位部分， 至少是温度的基础。
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10.发明申请IMAGE FORMING APPARATUS TO CHARGE PHOTORECEPTOR IN NON-CONTACT MANNER AND CHARGING MEMBER 审中-公开图像形成装置对非接触式电容器和充电器中的光电子进行充电公开(公告)号：US20120008982A1
公开(公告)日：2012-01-12
申请号：US13177672
申请日：2011-07-07
CPC分类号： G03G15/025
摘要： An image forming apparatus includes a photoreceptor and a charging member. The photoreceptor includes a long-shaped raw pipe and a photoconductive layer that covers a center portion of the raw pipe in a longitudinal direction and forms exposed parts at ends of the raw pipe in the longitudinal direction. The charging member is arranged in parallel to the photoreceptor through a gap. The charging member includes a long-shaped conductive support body and a resistance adjustment layer that covers a center portion of the conductive support body in the longitudinal direction, and charges the photoconductive layer. Besides, the charging member includes a gap keeping member and a discharge preventing part. The gap keeping member is provided at a position outwardly spaced from a photoconductive layer opposite area by a specified distance in the longitudinal direction of the conductive support body, contacts the exposed part, and keeps a gap between the resistance adjustment layer and the photoconductive layer. The discharge preventing part covers a separation area between the resistance adjustment layer and the gap keeping member in the longitudinal direction of the conductive support body, and prevents discharge from the exposed part to the separation area.
摘要翻译： 图像形成装置包括感光体和充电部件。 感光体包括长条状的原料管和在长度方向上覆盖原料管的中央部的光电导层，在原料管的长度方向的端部形成露出部。 充电构件通过间隙平行于感光体布置。 充电构件包括长形导电支撑体和电阻调节层，其在纵向方向上覆盖导电支撑体的中心部分，并对光电导层充电。 此外，充电构件包括间隙保持构件和防止放电部分。 间隙保持构件设置在与导电层相对的区域向外间隔开导电支撑体的纵向方向上指定距离的位置处，与暴露部分接触，并且在电阻调节层和光电导层之间保持间隙。 防止放电部分覆盖导电支撑体的长度方向上的电阻调节层和间隙保持部件之间的分离区域，并且防止从暴露部分向分离区域的放电。
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