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公开(公告)号：DE602004010554T2
公开(公告)日：2008-04-30
申请号：DE602004010554
申请日：2004-01-14
Applicant: XEROX CORP
Inventor： RANDALL STEPHEN F , MO SONG-FENG , APTON WENDY K , CRAIG DAVID C , MEDINA PATRICIO G , WALKER PATRICK J , SHOEMAKER RALPH A
Abstract: A method and apparatus are provided to calibrate a xerographic print engine toner concentration sensor (32) to accurately control the toner concentration defined as the ratio of weight of toner and the weight of the overall developing agent in a two-component developing agent to a specified operating target. At least two control patches are imaged onto a photoreceptor (10). Each patch has a different voltage level (VemLo,VemHi) where the voltage levels are the difference between the exposure discharge voltage (VeLo,VeHi) and the developmental roll voltage (VD). The relative reflectivity of each patches is obtained. The latent patches are repeatedly developed at different toner concentrations. The reflectivities of the patches formed at the same toner concentration are combined to obtain a combined reflectivity for that toner concentration. As a result, a toner concentration curve is obtained that has an improved response relative to the toner concentration curves that correspond to each of the individual voltage levels.
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公开(公告)号：DE602004010554D1
公开(公告)日：2008-01-24
申请号：DE602004010554
申请日：2004-01-14
Applicant: XEROX CORP
Inventor： RANDALL STEPHEN F , MO SONG-FENG , APTON WENDY K , CRAIG DAVID C , MEDINA PATRICIO G , WALKER PATRICK J , SHOEMAKER RALPH A
Abstract: A method and apparatus are provided to calibrate a xerographic print engine toner concentration sensor (32) to accurately control the toner concentration defined as the ratio of weight of toner and the weight of the overall developing agent in a two-component developing agent to a specified operating target. At least two control patches are imaged onto a photoreceptor (10). Each patch has a different voltage level (VemLo,VemHi) where the voltage levels are the difference between the exposure discharge voltage (VeLo,VeHi) and the developmental roll voltage (VD). The relative reflectivity of each patches is obtained. The latent patches are repeatedly developed at different toner concentrations. The reflectivities of the patches formed at the same toner concentration are combined to obtain a combined reflectivity for that toner concentration. As a result, a toner concentration curve is obtained that has an improved response relative to the toner concentration curves that correspond to each of the individual voltage levels.
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公开(公告)号：JP2004220030A
公开(公告)日：2004-08-05
申请号：JP2004006166
申请日：2004-01-14
Applicant: Xerox Corp , ゼロックス コーポレイションXerox Corporation
Inventor： RANDALL STEPHEN F , MO SONG-FENG , APTON WENDY K , CRAIG DAVID C , MEDINA PATRICIO G , WALKER PATRICK J , SHOEMAKER RALPH A
CPC classification number: G03G15/01
Abstract: PROBLEM TO BE SOLVED: To provide a system and a method that determine an improved toner concentration sensor calibration curve. SOLUTION: The calibration system and method for the toner concentration sensor of a print engine having an exposure discharging voltage and a developing voltage perform image formation of a first patch on a photoreceptor with a specified relatively large voltage difference between the exposure discharging voltage and development voltage (S130), perform image formation of a second patch with a relatively smaller voltage difference between the exposure discharging voltage and developing voltage, and develop the first patch and second patch with a first toner concentration (S180). Then the first and second patches obtained by repeating the above image forming process are developed with a toner concentration different from the first toner concentration. Values of relative reflection factors of the first and second patches which are developed with the plurality of different toner concentrations are determined (S190) and the values of the relative reflection factors of the first and second patches corresponding to the values of the respective toner concentrations are combined (S230) to obtain mean toner concentration sensitivity of the print engine. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract translation: 要解决的问题：提供确定改进的调色剂浓度传感器校准曲线的系统和方法。 解决方案：具有曝光放电电压和显影电压的打印引擎的调色剂浓度传感器的校准系统和方法在曝光放电电压之间具有指定的相对较大的电压差的感光体上进行第一贴片的图像形成 和显影电压（S130），以曝光放电电压和显影电压之间的相对较小的电压差进行第二贴片的图像形成，并以第一调色剂浓度显影第一贴片和第二贴片（S180）。 然后通过重复上述图像形成处理获得的第一和第二贴片以不同于第一调色剂浓度的调色剂浓度显影。 确定用多个不同调色剂浓度显影的第一和第二贴片的相对反射因子的值（S190），并且与各个调色剂浓度的值对应的第一和第二贴片的相对反射因子的值为 组合（S230）以获得打印引擎的平均调色剂浓度敏感度。 版权所有（C）2004，JPO＆NCIPI
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