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1.发明授权Image forming apparatus and method for controlling tone characteristics based on tone-control patch image 失效用于基于色调控制补片图像来控制色调特征的图像形成装置和方法公开(公告)号：US07680425B2
公开(公告)日：2010-03-16
申请号：US10893743
申请日：2004-07-16
申请人： Takashi Hama , Hidetsugu Shimura , Keiichi Taguchi , Hiroshi Nakazato , Ken Ikuma , Hidenori Kin
发明人： Takashi Hama , Hidetsugu Shimura , Keiichi Taguchi , Hiroshi Nakazato , Ken Ikuma , Hidenori Kin
IPC分类号： G03G15/00
CPC分类号： G03G15/5058 , G03G15/0131 , G03G2215/00059 , G03G2215/00063 , G03G2215/0177 , H04N1/4078
摘要： An image It is formed as a patch image which includes a header image portion Ih of a solid image having a length of a circumferential length of a developing roller or more, and a gradation image portion Ig progressively varied in the tone level thereof from the maximum level to the minimum level. The densities of the patch image on an intermediate transfer belt are sampled. However, the sampling results contain errors resulting from noises or variations and hence, are subjected to a noise removal process, a periodical variation correction process and a reverse correction process. The results detected on the intermediate transfer belt do not always coincide with image densities (OD values) on a recording material. Therefore, the detection results are converted into the OD values, based on which tone characteristics of an apparatus is estimated. Then a tone correction table is updated in a manner to compensate for the tone characteristics. This approach is taken to improve image quality on the recording material.
摘要翻译： 图像形成为补片图像，其包括具有显影辊或其以上的周长的长度的实心图像的标题图像部分Ih，并且其色调级别中的渐变图像部分Ig从最大值逐渐变化 水平达到最低水平。 对中间转印带上的贴片图像的密度进行采样。 然而，采样结果包含由噪声或变化引起的误差，因此，进行噪声去除处理，周期性变化校正处理和反向校正处理。 在中间转印带上检测到的结果并不总是与记录材料上的图像密度（OD值）重合。 因此，根据估计装置的音调特性，将检测结果转换成OD值。 然后以补偿色调特性的方式更新色调校正表。 采取这种方法来改善记录材料上的图像质量。
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2.发明申请Image forming apparatus, a control method for the same and an image forming method 失效图像形成装置，其控制方法和图像形成方法公开(公告)号：US20050030562A1
公开(公告)日：2005-02-10
申请号：US10893743
申请日：2004-07-16
申请人： Takashi Hama , Hidetsugu Shimura , Keiichi Taguchi , Hiroshi Nakazato , Ken Ikuma , Hidenori Kin
发明人： Takashi Hama , Hidetsugu Shimura , Keiichi Taguchi , Hiroshi Nakazato , Ken Ikuma , Hidenori Kin
CPC分类号： G03G15/5058 , G03G15/0131 , G03G2215/00059 , G03G2215/00063 , G03G2215/0177 , H04N1/4078
摘要： An image It is formed as a patch image which includes a header image portion Ih of a solid image having a length of a circumferential length of a developing roller or more, and a gradation image portion Ig progressively varied in the tone level thereof from the maximum level to the minimum level. The densities of the patch image on an intermediate transfer belt are sampled. However, the sampling results contain errors resulting from noises or variations and hence, are subjected to a noise removal process, a periodical variation correction process and a reverse correction process. The results detected on the intermediate transfer belt do not always coincide with image densities (OD values) on a recording material. Therefore, the detection results are converted into the OD values, based on which tone characteristics of an apparatus is estimated. Then a tone correction table is updated in a manner to compensate for the tone characteristics. This approach is taken to improve image quality on the recording material.
摘要翻译： 图像形成为补片图像，其包括具有显影辊或其以上的周长的长度的实心图像的标题图像部分Ih，并且其色调级别中的渐变图像部分Ig从最大值逐渐变化 水平达到最低水平。 对中间转印带上的贴片图像的密度进行取样。 然而，采样结果包含由噪声或变化引起的误差，因此，进行噪声去除处理，周期性变化校正处理和反向校正处理。 在中间转印带上检测到的结果并不总是与记录材料上的图像密度（OD值）重合。 因此，根据估计装置的音调特性，将检测结果转换成OD值。 然后以补偿色调特性的方式更新色调校正表。 采取这种方法来改善记录材料上的图像质量。
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3.发明申请Image forming apparatus, control method and toner consumption calculating apparatus and method 失效图像形成装置，控制方法和调色剂消耗计算装置及方法公开(公告)号：US20050185973A1
公开(公告)日：2005-08-25
申请号：US10855981
申请日：2004-05-27
IPC分类号： G03G15/00
CPC分类号： G03G15/5058 , G03G15/556 , G03G2215/0177
摘要： When the remaining toner amount within a developer is relatively large, a control target value of a toner amount is set to Ttgt1 and a lower limit value of a toner amount which can regarded proper is set to TL1. When the density of a patch image formed under a predetermined condition is smaller than a minimum guaranteed density Dma, it is determined abnormality has occurred in the apparatus. Since the characteristic of toner within the developer changes as the remaining toner amount decreases, the control target value is changed to Ttgt2 and the lower limit value is set to TL2 in light of this. In this fashion, regardless of whether the toner characteristic has changed, abnormality in the apparatus is detected without fail.
摘要翻译： 当显影剂中的剩余调色剂量相对较大时，将调色剂量的控制目标值设置为Ttgt 1，将可以认为适当的调色剂量的下限值设置为TL 1。 当在预定条件下形成的贴片图像的浓度小于最小保证密度Dma时，确定在装置中发生异常。 由于显影剂中的调色剂的特性随着剩余调色剂量的减少而发生变化，所以根据此，将控制目标值改变为Ttgt2，将下限值设定为TL2。 以这种方式，无论调色剂特性是否改变，装置中的异常都被检测到。
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4.发明授权Image forming apparatus, control method and toner consumption calculating apparatus and method 失效图像形成装置，控制方法和调色剂消耗计算装置及方法公开(公告)号：US07269362B2
公开(公告)日：2007-09-11
申请号：US10855981
申请日：2004-05-27
IPC分类号： G03G15/08
CPC分类号： G03G15/5058 , G03G15/556 , G03G2215/0177
摘要： When the remaining toner amount within a developer is relatively large, a control target value of a toner amount is set to Ttgt1, and a lower limit value of a toner amount which can regarded proper is set to TL1. When the density of a patch image formed under a predetermined condition is smaller than a minimum guaranteed density Dma, it is determined abnormality has occurred in the apparatus. Since the characteristic of toner within the developer changes as the remaining toner amount decreases, the control target value is changed to Ttgt2 and the lower limit value is set to TL2 in light of this. In this fashion, regardless of whether the toner characteristic has changed, abnormality in the apparatus is detected without fail.
摘要翻译： 当显影剂中的剩余调色剂量相对较大时，将调色剂量的控制目标值设置为Ttgt 1，将可以认为适当的调色剂量的下限值设置为TL 1。 当在预定条件下形成的贴片图像的浓度小于最小保证密度Dma时，确定在装置中发生异常。 由于显影剂中的调色剂的特性随着剩余调色剂量的减少而发生变化，所以根据此，将控制目标值改变为Ttgt2，将下限值设定为TL2。 以这种方式，无论调色剂特性是否改变，装置中的异常都被检测到。
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5.发明授权Apparatus for and method of forming image under controlled image forming condition 有权在受控图像形成条件下形成图像的装置和方法公开(公告)号：US06871026B2
公开(公告)日：2005-03-22
申请号：US10642521
申请日：2003-08-18
CPC分类号： G03G15/556 , G03G15/0131 , G03G15/0855 , G03G15/0863 , G03G15/5058 , G03G2215/00037 , G03G2215/00042 , G03G2215/00059 , G03G2215/00063 , G03G2215/0177 , G03G2221/183
摘要： A condition controlling process is executed when parameters expressing a state of toner within a developer reaches predetermined threshold values. On each one of two parameters, namely, a dot count value which is indicative of a toner consumption amount (an integrated value of the number of dots formed using an exposure beam) and a developer roller rotating time which is indicative of the degree of toner fatigue, a threshold value (denoted at the dotted lines) which triggers execution of the condition controlling process is set. At the time that the path d of dots which are expressed as combinations of these parameters intersects each dotted line (the intersections (1) through (6)), the condition controlling process is executed.
摘要翻译： 当表达显影剂中的调色剂状态的参数达到预定阈值时，执行条件控制处理。 在两个参数中的每个参数上，即指示调色剂消耗量（使用曝光光束形成的点数的积分值）的点计数值和指示调色剂程度的显影剂辊旋转时间 疲劳，设定触发条件控制处理的执行的阈值（用虚线表示）。 在表示为这些参数的组合的点的路径d与每个虚线（交叉点（1）至（6））相交的时间，执行条件控制处理。
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6.发明授权Image forming apparatus, toner-adhesion calculation method and data processing method 失效图像形成装置，调色剂附着计算方法和数据处理方法公开(公告)号：US06909858B2
公开(公告)日：2005-06-21
申请号：US10633689
申请日：2003-08-05
CPC分类号： G03G15/5058 , G03G2215/00042 , G03G2215/0177
摘要： Output signals Vp from a density sensor are sampled for plural positions on an intermediate transfer belt and an amount of toner adhesion is determined based on the results of sampling. Since these sample data pieces may contain noises, each predetermined number of data pieces of higher order and of lower order are removed from the resultant sample data string. The removed data pieces are each replaced by an average value Vpavg of the other sample data pieces. The amount of toner adhesion is calculated based on the data string thus replaced.
摘要翻译： 来自密度传感器的输出信号Vp被采样到中间转印带上的多个位置，并且基于取样结果确定调色剂附着量。 由于这些样本数据可能含有噪声，因此从所得到的样本数据串中去除每个预定数量的高阶和低阶数据。 删除的数据片段被其他样本数据的平均值Vpavg替换。 调色剂附着量基于这样替换的数据串计算。
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公开(公告)号：US07623801B2
公开(公告)日：2009-11-24
申请号：US11377227
申请日：2006-03-15
IPC分类号： G03G15/08
CPC分类号： G03G15/5058 , G03G15/0121 , G03G15/0131 , G03G15/0173 , G03G2215/00059 , G03G2215/00063 , G03G2215/0161 , G03G2215/0177
摘要： An image forming apparatus for forming an image corresponding to an image signal on a recording material, comprising: a signal processor which generates an image-formation control signal by subjecting the image signal to a signal processing process including a screening process selectively using one of plural types of different processing screens; an image forming unit which includes an intermediate transfer medium, and which forms the image by forming a toner image on the intermediate transfer medium corresponding to the image-formation control signal and transferring and fixing the toner image to a recording material; and a detector which detects a quantity of the toner carried on the intermediate transfer medium as the toner image, wherein the signal processing process performed by the signal processor includes a tone correction process for compensating for a gamma characteristics of the apparatus based on a detection result given by the detector detecting a toner image formed as a patch image by using the processing screen and a transferring/fixing characteristics, which represents a relation between a quantity of toner constituting a toner image carried on the intermediate transfer medium and a density of an image formed on the recording material as a result of transferring and fixing the toner image to the recording material, previously determined in correspondence to the processing screen.
摘要翻译： 一种用于在记录材料上形成对应于图像信号的图像的图像形成装置，包括：信号处理器，其通过选择性地使用多个图像信号中的一个对图像信号进行包括筛选处理的信号处理处理来生成图像形成控制信号 不同加工屏幕的类型; 图像形成单元，其包括中间转印介质，并且通过在对应于图像形成控制信号的中间转印介质上形成调色剂图像并将调色剂图像转印和定影到记录材料来形成图像; 以及检测器，其检测作为调色剂图像的中间转印介质上承载的调色剂的量，其中由信号处理器执行的信号处理处理包括用于基于检测结果来补偿装置的伽马特性的色调校正处理 由检测器检测到通过使用处理屏幕形成为补片图像的调色剂图像和转印/定影特性，其表示构成中间转印介质上承载的调色剂图像的调色剂的量与图像的浓度之间的关系 形成在记录材料上，作为将调色剂图像转印并固定到记录材料上，预先根据处理屏幕确定。
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公开(公告)号：US20060222389A1
公开(公告)日：2006-10-05
申请号：US11377227
申请日：2006-03-15
IPC分类号： G03G15/00
CPC分类号： G03G15/5058 , G03G15/0121 , G03G15/0131 , G03G15/0173 , G03G2215/00059 , G03G2215/00063 , G03G2215/0161 , G03G2215/0177
摘要： An image forming apparatus for forming an image corresponding to an image signal on a recording material, comprising: a signal processor which generates an image-formation control signal by subjecting the image signal to a signal processing process including a screening process selectively using one of plural types of different processing screens; an image forming unit which includes an intermediate transfer medium, and which forms the image by forming a toner image on the intermediate transfer medium corresponding to the image-formation control signal and transferring and fixing the toner image to a recording material; and a detector which detects a quantity of the toner carried on the intermediate transfer medium as the toner image, wherein the signal processing process performed by the signal processor includes a tone correction process for compensating for a gamma characteristics of the apparatus based on a detection result given by the detector detecting a toner image formed as a patch image by using the processing screen and a transferring/fixing characteristics, which represents a relation between a quantity of toner constituting a toner image carried on the intermediate transfer medium and a density of an image formed on the recording material as a result of transferring and fixing the toner image to the recording material, previously determined in correspondence to the processing screen.
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公开(公告)号：US07570892B2
公开(公告)日：2009-08-04
申请号：US12269729
申请日：2008-11-12
申请人： Hiroshi Nakazato , Ken Ikuma , Keiichi Taguchi
发明人： Hiroshi Nakazato , Ken Ikuma , Keiichi Taguchi
CPC分类号： G03G21/1839 , G03G15/0121 , G03G15/0173 , G03G15/5004 , G03G2215/0177 , G03G2221/169 , G03G2221/183
摘要： An image forming apparatus adapted for a smooth mounting/dismounting of a process unit and for the reduction of wasteful power consumption is provided.Unless a new image signal is applied after completion of an image forming operation, the apparatus starts a clocking operation by an internal timer (Step S101). If the apparatus is left standstill for a predetermined length of time (Step S102), a sleep process (Step S103) is executed to shift the apparatus to a power save mode to consume less power. When an outside cover is opened (Step S105), on the other hand, the apparatus is shifted to a replacement operation mode (Step S106) in which only the rotation of a development rotary is permitted. However, if the apparatus is left with the outside cover opened (Step S108), the sleep process is executed.
摘要翻译： 提供了适于平滑地安装/拆卸处理单元并且减少浪费的功率消耗的图像形成装置。 除非在完成图像形成操作之后施加新的图像信号，否则该装置通过内部定时器开始计时操作（步骤S101）。 如果设备停留预定时间长度（步骤S102），则执行睡眠处理（步骤S103），以将设备移动到省电模式以消耗更少的功率。 另一方面，当打开外盖（步骤S105）时，将装置转移到仅允许显影旋转的旋转的替换操作模式（步骤S106）。 然而，如果在打开外盖的情况下留下装置（步骤S108），则执行睡眠处理。
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10.发明授权公开(公告)号：US07469110B2
公开(公告)日：2008-12-23
申请号：US10560333
申请日：2004-10-15
申请人： Hiroshi Nakazato , Ken Ikuma , Keiichi Taguchi
发明人： Hiroshi Nakazato , Ken Ikuma , Keiichi Taguchi
IPC分类号： G03G15/00
CPC分类号： G03G21/1839 , G03G15/0121 , G03G15/0173 , G03G15/5004 , G03G2215/0177 , G03G2221/169 , G03G2221/183
摘要： An image forming apparatus adapted for a smooth mounting/dismounting of a process unit and for the reduction of wasteful power consumption is provided.Unless a new image signal is applied after completion of an image forming operation, the apparatus starts a clocking operation by an internal timer (Step S101). If the apparatus is left standstill for a predetermined length of time (Step S102), a sleep process (Step S103) is executed to shift the apparatus to a power save mode to consume less power. When an outside cover is opened (Step S105), on the other hand, the apparatus is shifted to a replacement operation mode (Step S106) in which only the rotation of a development rotary is permitted. However, if the apparatus is left with the outside cover opened (Step S108), the sleep process is executed.
摘要翻译： 提供了适于平滑地安装/拆卸处理单元并且减少浪费的功率消耗的图像形成装置。 除非在完成图像形成操作之后施加新的图像信号，否则该装置通过内部定时器开始计时操作（步骤S101）。 如果设备停留预定时间长度（步骤S102），则执行睡眠处理（步骤S103），以将设备移动到省电模式以消耗更少的功率。 另一方面，当打开外盖（步骤S105）时，将装置转移到仅允许显影旋转的旋转的替换操作模式（步骤S106）。 然而，如果在打开外盖的情况下留下装置（步骤S108），则执行睡眠处理。
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