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1. 发明授权

US08081326B2 Color imaging forming apparatus with image stabilization control and method therefore 有权
标题翻译：因此，具有图像稳定控制的彩色成像装置和方法
公开(公告)号：US08081326B2
公开(公告)日：2011-12-20
申请号：US11979272
申请日：2007-10-31
申请人： Kazuo Okunishi , Kohei Hayashi , Tetsuya Sakai , Hironori Akashi
发明人： Kazuo Okunishi , Kohei Hayashi , Tetsuya Sakai , Hironori Akashi
IPC分类号： G06F3/12 , G06K1/00 , H04N1/60 , G03G15/00
CPC分类号： G03G15/55 , G03G2215/0158
摘要： An image forming apparatus performs image stabilization after a printed page count exceeds a first threshold, if either an end of a job or a mode switch from monochrome mode to color mode has been detected. Even if neither the end of the job nor the mode switch from monochrome mode to color mode has been detected, the image forming apparatus performs image stabilization if the printed page count exceeds a second threshold that is larger than the first threshold.
摘要翻译：如果已经检测到作业的结束或从单色模式切换到彩色模式的模式，则在打印页数超过第一阈值之后，图像形成装置执行图像稳定。即使既没有检测到作业的结束，也没有检测到从单色模式切换到彩色模式的模式，如果打印页数超过大于第一阈值的第二阈值，则图像形成装置执行图像稳定。

2. 发明申请

US20080130030A1 Color image forming apparatus 有权
标题翻译：彩色图像形成装置
公开(公告)号：US20080130030A1
公开(公告)日：2008-06-05
申请号：US11979272
申请日：2007-10-31
申请人： Kazuo Okunishi , Kohei Hayashi , Tetsuya Sakai , Hironori Akashi
发明人： Kazuo Okunishi , Kohei Hayashi , Tetsuya Sakai , Hironori Akashi
IPC分类号： G06F15/00
CPC分类号： G03G15/55 , G03G2215/0158
摘要： An image forming apparatus performs image stabilization after a printed page count exceeds a first threshold, if either an end of a job or a mode switch from monochrome mode to color mode has been detected. Even if neither the end of the job nor the mode switch from monochrome mode to color mode has been detected, the image forming apparatus performs image stabilization if the printed page count exceeds a second threshold that is larger than the first threshold.
摘要翻译：如果已经检测到作业的结束或从单色模式切换到彩色模式的模式，则在打印页数超过第一阈值之后，图像形成装置执行图像稳定。即使既没有检测到作业的结束，也没有检测到从单色模式切换到彩色模式的模式，如果打印页数超过大于第一阈值的第二阈值，则图像形成装置执行图像稳定。

3. 发明申请

US20080122918A1 Image forming apparatus capable of forming excellent image 有权
标题翻译：能够形成优异图像的图像形成装置
公开(公告)号：US20080122918A1
公开(公告)日：2008-05-29
申请号：US11802364
申请日：2007-05-22
申请人： Tetsuya Sakai , Hironori Akashi
发明人： Tetsuya Sakai , Hironori Akashi
IPC分类号： B41J2/47
CPC分类号： B41J2/473
摘要： Differing ratios of the amount of light from light source LD2 to the amount of light from light source LD1 are provided. An image pattern for adjustment that includes, for each color, an area made up of isolated dots by light source LD1 and an area made up of isolated dots by light source LD2, is printed for each ratio. In a copier, a density of each area is detected, a ratio at which a difference between the density of an area of isolated dots by light source LD1 and the density of an area of isolated dots by light source LD2 is smallest is decided as an adjustment ratio, and control is performed such that light sources LD1 and LD2 emit light at the adjusted ratio.
摘要翻译：提供了光源LD2的光量与来自光源LD1的光量的不同比例。针对每个颜色，针对每个颜色，包括由光源LD1构成的由孤立点组成的区域和由光源LD 2构成的由孤立点组成的区域的调整用图像图案。在复印机中，检测各区域的密度，决定光源LD1的孤立点的区域的密度与光源LD2的孤立点的密度之间的差最小的比例作为调整率，进行控制，使得光源LD1和LD2以调整的比率发光。

4. 发明授权

US07603047B2 Image forming apparatus capable of forming high-quality image 有权
标题翻译：能够形成高质量图像的图像形成装置
公开(公告)号：US07603047B2
公开(公告)日：2009-10-13
申请号：US11713667
申请日：2007-03-05
申请人： Hironori Akashi , Tetsuya Sakai
发明人： Hironori Akashi , Tetsuya Sakai
IPC分类号： G03G15/00
CPC分类号： G03G15/5058 , G03G15/0131 , G03G15/5054 , G03G2215/00059
摘要： A printer detects density of a toner pattern on an intermediate transfer belt, operates a differential value for the detection value, and compares the differential value with a threshold value. If fluctuation of detection values is great and there are detection values of which differential values exceed the threshold value, those detection values are assumed to contain noise due to abnormality of the shape on the belt, and the detection values in such a range are corrected using curve approximation. A tone correction table is updated using the corrected detection values.
摘要翻译：打印机检测中间转印带上的调色剂图案的浓度，操作检测值的差分值，并将差分值与阈值进行比较。如果检测值的波动大，并且存在差分值超过阈值的检测值，那么这些检测值被假设为由于带上的形状的异常而包含噪声，并且在这样的范围内的检测值使用曲线近似。使用校正的检测值更新色调校正表。

5. 发明申请

US20060018674A1 Method and device for estimating toner concentration and image forming apparatus equipped with such device 有权
标题翻译：用于估计调色剂浓度的方法和装置以及配备有这种装置的成像装置
公开(公告)号：US20060018674A1
公开(公告)日：2006-01-26
申请号：US11008605
申请日：2004-12-10
申请人： Katsuyuki Hirata , Tetsuya Sakai , Tatsuya Isono , Hironori Akashi , Toshio Tsuboi , Takashi Harashima , Masaki Tanaka
发明人： Katsuyuki Hirata , Tetsuya Sakai , Tatsuya Isono , Hironori Akashi , Toshio Tsuboi , Takashi Harashima , Masaki Tanaka
IPC分类号： G03G15/08
CPC分类号： G03G15/5058 , G03G15/0849 , G03G2215/00037
摘要： A method and device for estimating toner concentration in a two-component developer consisting of toner and carrier for an electrophotographic image forming apparatus, and an image forming apparatus equipped with such device. The above method and device calculate an amount of toner charge from data detected by a transferred toner amount sensor, compensate the toner charge based on environmental humidity data and cumulative use period data of the image forming apparatus, and estimate toner concentration. The image forming apparatus equipped with the above device exerts control to predict toner consumption from the estimated toner concentration, supply toner to a developing unit according to the predicted toner consumption, and maintain the toner concentration in the developer at predetermined concentration.
摘要翻译：用于估计由用于电子照相图像形成装置的调色剂和载体组成的双组分显影剂中的调色剂浓度的方法和装置，以及配备有这种装置的图像形成装置。上述方法和装置根据由转印调色剂量传感器检测到的数据计算调色剂电荷量，并基于图像形成装置的环境湿度数据和累积使用期间数据补偿调色剂量，并估计调色剂浓度。配备有上述装置的图像形成装置进行控制以根据估计的调色剂浓度预测调色剂消耗，根据预测的调色剂消耗量向显影单元供应调色剂，并将显影剂中的调色剂浓度保持在预定浓度。

6. 发明授权

US07787006B2 Image forming apparatus capable of forming excellent image 有权
标题翻译：能够形成优异图像的图像形成装置
公开(公告)号：US07787006B2
公开(公告)日：2010-08-31
申请号：US11802364
申请日：2007-05-22
申请人： Tetsuya Sakai , Hironori Akashi
发明人： Tetsuya Sakai , Hironori Akashi
IPC分类号： B41J2/385 , B41J2/40 , B41J2/45 , B41J2/47
CPC分类号： B41J2/473
摘要： Differing ratios of the amount of light from light source LD2 to the amount of light from light source LD1 are provided. An image pattern for adjustment that includes, for each color, an area made up of isolated dots by light source LD1 and an area made up of isolated dots by light source LD2, is printed for each ratio. In a copier, a density of each area is detected, a ratio at which a difference between the density of an area of isolated dots by light source LD1 and the density of an area of isolated dots by light source LD2 is smallest is decided as an adjustment ratio, and control is performed such that light sources LD1 and LD2 emit light at the adjusted ratio.
摘要翻译：提供了来自光源LD2的光量与来自光源LD1的光量的不同比率。对于每个颜色，针对每个颜色，包括由光源LD1由孤立点组成的区域和由光源LD2由孤立点组成的区域的调整图像图案。在复印机中，检测各区域的密度，将由光源LD1分离的点的区域的密度与光源LD2的孤立点的密度之间的差最小的比例决定为调节比，并且执行控制，使得光源LD1和LD2以调节的比率发光。

7. 发明申请

US20080112718A1 Image forming apparatus capable of forming high-quality image 有权
标题翻译：能够形成高质量图像的图像形成装置
公开(公告)号：US20080112718A1
公开(公告)日：2008-05-15
申请号：US11713667
申请日：2007-03-05
申请人： Hironori Akashi , Tetsuya Sakai
发明人： Hironori Akashi , Tetsuya Sakai
IPC分类号： G03G15/00
CPC分类号： G03G15/5058 , G03G15/0131 , G03G15/5054 , G03G2215/00059
摘要： A printer detects density of a toner pattern on an intermediate transfer belt, operates a differential value for the detection value, and compares the differential value with a threshold value. If fluctuation of detection values is great and there are detection values of which differential values exceed the threshold value, those detection values are assumed to contain noise due to abnormality of the shape on the belt, and the detection values in such a range are corrected using curve approximation. A tone correction table is updated using the corrected detection values.
摘要翻译：打印机检测中间转印带上的调色剂图案的浓度，操作检测值的差分值，并将差分值与阈值进行比较。如果检测值的波动大，并且存在差分值超过阈值的检测值，那么这些检测值被假设为由于带上的形状的异常而包含噪声，并且在这样的范围内的检测值使用曲线近似。使用校正的检测值更新色调校正表。

8. 发明授权

US07181148B2 Image forming apparatus and device for determining the density and position of a toner pattern 失效
标题翻译：用于确定调色剂图案的浓度和位置的图像形成装置和装置
公开(公告)号：US07181148B2
公开(公告)日：2007-02-20
申请号：US10813076
申请日：2004-03-31
申请人： Tetsuya Sakai , Katsuyuki Hirata , Hironori Akashi , Tatsuya Isono , Takashi Harashima , Masaki Tanaka
发明人： Tetsuya Sakai , Katsuyuki Hirata , Hironori Akashi , Tatsuya Isono , Takashi Harashima , Masaki Tanaka
IPC分类号： G03G15/00
CPC分类号： G03G15/5058 , G03G15/0131 , G03G2215/00059 , G03G2215/00063 , G03G2215/0161 , G03G2215/0164
摘要： A detection device used in an image forming apparatus, comprises a light-emitting element which emits light towards a toner pattern formed on an image carrier, a first light-receiving element which detects the light reflected from the toner pattern and a second light-receiving element which detects the light reflected from the toner pattern in a fashion different from the first light-receiving element. The detection device calculates the amount of toner of the toner pattern based on the output values from the first and second light-receiving elements as well as the position of the toner pattern based on the output value from the first light-receiving element.
摘要翻译：一种用于图像形成装置的检测装置，包括朝向形成在图像载体上的调色剂图案发光的发光元件，检测从调色剂图案反射的光的第一光接收元件和第二受光元件元件，其以不同于第一光接收元件的方式检测从调色剂图案反射的光。检测装置基于来自第一和第二光接收元件的输出值以及基于来自第一光接收元件的输出值的调色剂图案的位置来计算调色剂图案的调色剂量。

9. 发明授权

US07149439B2 Method and device for estimating toner concentration and image forming apparatus equipped with such device 有权
公开(公告)号：US07149439B2
公开(公告)日：2006-12-12
申请号：US11008605
申请日：2004-12-10
申请人： Katsuyuki Hirata , Tetsuya Sakai , Tatsuya Isono , Hironori Akashi , Toshio Tsuboi , Takashi Harashima , Masaki Tanaka
发明人： Katsuyuki Hirata , Tetsuya Sakai , Tatsuya Isono , Hironori Akashi , Toshio Tsuboi , Takashi Harashima , Masaki Tanaka
IPC分类号： G03G15/08
CPC分类号： G03G15/5058 , G03G15/0849 , G03G2215/00037
摘要： A method and device for estimating toner concentration in a two-component developer consisting of toner and carrier for an electrophotographic image forming apparatus, and an image forming apparatus equipped with such device. The above method and device calculate an amount of toner charge from data detected by a transferred toner amount sensor, compensate the toner charge based on environmental humidity data and cumulative use period data of the image forming apparatus, and estimate toner concentration. The image forming apparatus equipped with the above device exerts control to predict toner consumption from the estimated toner concentration, supply toner to a developing unit according to the predicted toner consumption, and maintain the toner concentration in the developer at predetermined concentration.

10. 发明申请

US20130077985A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20130077985A1
公开(公告)日：2013-03-28
申请号：US13623602
申请日：2012-09-20
申请人： Junichi Arai , Hironori Akashi
发明人： Junichi Arai , Hironori Akashi
IPC分类号： G03G15/00 , G03G15/02
CPC分类号： G03G15/01 , G03G15/0189 , G03G15/02 , G03G15/0283 , G03G15/06 , G03G15/065
摘要： An image forming apparatus having; image supporting members provided for a plurality of colors; chargers to be impressed with charging biases to charge the respective image supporting members; developing devices to be impressed with developing biases to develop latent images formed on the image supporting members; a charging bias power supply, including high-voltage DC power supply circuits and an AC power supply circuit, for applying the charging biases, which are generated by superposition of direct-current voltages and an alternate-current voltage, to the chargers; and a control circuit that performs stop processing to stop applications of the charging biases and the developing biases. The control circuit performs processing to attenuate each of the direct-current voltages and each of the developing biases, and after all the direct-current voltages have become a predetermined stop potential, the control circuit performs processing to stop the outputs of the direct-current voltages and the alternate-current voltage.
摘要翻译：一种图像形成装置，具有：提供多种颜色的图像支持部件; 充电器对充电偏压留下深刻的印象，以对相应的图像支撑元件充电; 显影装置被印刷出偏压，以形成形成在图像支撑构件上的潜像; 包括高压直流电源电路和交流电源电路的充电偏压电源，用于将通过叠加直流电压和交流电压产生的充电偏压施加到充电器; 以及控制电路，其执行停止处理以停止充电偏压和显影偏压的应用。控制电路执行对每个直流电压和每个显影偏压进行衰减的处理，并且在所有直流电压已经成为预定的停止电位之后，控制电路执行停止直流电的输出的处理电压和交流电压。

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