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公开(公告)号：US07395002B2
公开(公告)日：2008-07-01
申请号：US11420656
申请日：2006-05-26
CPC分类号： G03G15/5041 , G03G2215/00042
摘要： An image forming apparatus including: an outputted image density control portion that forms a patch image and determines an outputted image density control condition based on a comparison result of the density of the patch image with a preliminarily set target value; a pixel count portion capable of counting the amount of image pixel at the time of image formation; a pixel count value accumulating memory portion that accumulates and stores the pixel count value; a toner supply portion; a toner supply amount measuring portion capable of measuring the amount of toner supplied to the developing device; a toner supply amount accumulating memory portion that accumulates and stores the toner supply amount; and a target value correcting portion that corrects the target value of the density of the patch image from the relation between a pixel count accumulating value and a toner supply amount accumulation value, is provided.
摘要翻译： 一种图像形成装置，包括：输出图像浓度控制部分，其形成贴片图像，并且基于具有预先设定的目标值的贴片图像的浓度的比较结果确定输出的图像浓度控制条件; 能够对图像形成时的图像像素的数量进行计数的像素数计数部; 像素计数值累积存储器部分，其积累并存储像素计数值; 调色剂供应部分; 调色剂供应量测量部分，其能够测量供应到显影装置的调色剂的量; 调色剂供应量累积存储部分，其累积并存储调色剂供应量; 并且提供了根据像素计数累积值和调色剂供应量累积值之间的关系来校正色块图像的浓度的目标值的目标值校正部分。
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公开(公告)号：US20070081829A1
公开(公告)日：2007-04-12
申请号：US11420656
申请日：2006-05-26
CPC分类号： G03G15/5041 , G03G2215/00042
摘要： An image forming apparatus including: an outputted image density control portion that forms a patch image and determines an outputted image density control condition based on a comparison result of the density of the patch image with a preliminarily set target value; a pixel count portion capable of counting the amount of image pixel at the time of image formation; a pixel count value accumulating memory portion that accumulates and stores the pixel count value; a toner supply portion; a toner supply amount measuring portion capable of measuring the amount of toner supplied to the developing device; a toner supply amount accumulating memory portion that accumulates and stores the toner supply amount; and a target value correcting portion that corrects the target value of the density of the patch image from the relation between a pixel count accumulating value and a toner supply amount accumulation value, is provided.
摘要翻译： 一种图像形成装置，包括：输出图像浓度控制部分，其形成贴片图像，并且基于具有预先设定的目标值的贴片图像的浓度的比较结果确定输出的图像浓度控制条件; 能够对图像形成时的图像像素的数量进行计数的像素数计数部; 像素计数值累积存储器部分，其积累并存储像素计数值; 调色剂供应部分; 调色剂供应量测量部分，其能够测量供应到显影装置的调色剂的量; 调色剂供应量累积存储部分，其累积并存储调色剂供应量; 并且提供了根据像素计数累积值和调色剂供应量累积值之间的关系来校正色块图像的浓度的目标值的目标值校正部分。
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3.发明授权Electrophotographic printing apparatus with controller for varying light intensity 失效带有控制器的电子照相打印设备，用于改变光线强度
公开(公告)号：US6072512A
公开(公告)日：2000-06-06
申请号：US66593
申请日：1998-04-27
申请人： Hisashi Fukasawa
发明人： Hisashi Fukasawa
CPC分类号： H04N1/4005 , B41J2/442 , G06K15/12 , H04N1/40025 , G06K2215/0082
摘要： An electrophotographic printing device using a light source for emitting predetermined light and a photosensitive material on which an electrostatic latent image is formed by the light from the light source. The electrophotographic printing device has a memory for storing density control information on light intensity of the light source and density of an image formed on a printing medium, and a light intensity controller for controlling the light intensity of the light source based on the information in the memory. The density control information stored in the memory is determined from a relationship between the density of the image to be formed and potential of the electrostatic latent image, and a relationship between the potential of the electrostatic latent image and the light source.
摘要翻译： 使用光源发射预定光的电子照相打印装置和通过来自光源的光形成静电潜像的感光材料。 电子照相打印装置具有用于存储关于光源的光强度和形成在打印介质上的图像的浓度的浓度控制信息的存储器，以及用于根据信息中的信息控制光源的光强度的光强度控制器 记忆。 存储在存储器中的浓度控制信息根据要形成的图像的浓度和静电潜像的电位之间的关系以及静电潜像和光源的电位之间的关系来确定。
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4.发明申请LED LIGHTING CIRCUIT, LED ILLUMINATION DEVICE, AND LED ILLUMINATION UNIT SOCKET 有权LED照明电路，LED照明装置和LED照明单元插座公开(公告)号：US20130221864A1
公开(公告)日：2013-08-29
申请号：US13881724
申请日：2011-10-27
申请人： Hisashi Fukasawa , Takashi Akiyama
发明人： Hisashi Fukasawa , Takashi Akiyama
IPC分类号： H05B37/02
CPC分类号： H05B37/02 , F21K9/23 , F21Y2115/10 , H02M1/32 , H02M7/06 , H02M7/5383 , H05B33/08 , H05B33/0809 , H05B33/0815 , Y02B20/383
摘要： The purpose of the present invention is to provide an LED lighting circuit, which can normally light an LED even if an alternating current power supply is an electronic transformer, an LED illuminating device, and a socket for an LED illuminating unit. Disclosed is an LED lighting circuit includes a rectifier circuit for rectifying an AC output from an AC power supply, an LED drive unit, which drives the LED by having rectifying output inputted thereto from the rectifying circuit, a reverse current preventing unit, which is provided between the rectifying circuit and the LED drive unit, and a terminal voltage control unit, which reduces the output terminal voltage of the rectifying circuit in the case where the alternating current output from the alternating current power supply is unstable or stopped. Also provided are an LED illuminating device, and a socket for an LED illuminating unit.
摘要翻译： 本发明的目的是提供一种即使交流电源是电子变压器，LED照明装置和用于LED照明单元的插座也可以使LED常亮的LED点亮电路。 公开了一种LED照明电路，其包括：整流电路，用于整流来自交流电源的交流输出，LED驱动单元，其通过从整流电路输入的整流输出来驱动LED;反向电流防止单元，其设置 在整流电路和LED驱动单元之间，以及终端电压控制单元，其在从交流电源输出的交流电流不稳定或停止的情况下降低整流电路的输出端子电压。 还提供了LED照明装置和用于LED照明单元的插座。
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公开(公告)号：US5373353A
公开(公告)日：1994-12-13
申请号：US17242
申请日：1993-02-12
申请人： Hisashi Fukasawa
发明人： Hisashi Fukasawa
CPC分类号： G03G15/0812 , G03G2215/0861
摘要： A developing device for an electrophotographic image forming apparatus has a toner layer regulating member which presses a toner carrier with a bent portion thereof and extends in a direction generally opposite to an intended direction of rotation of the toner carrier. The toner carrier is made of silicone rubber, urethane rubber or similar elastic material while the toner layer regulating member is implemented as a spring member made of metal.
摘要翻译： 用于电子照相图像形成装置的显影装置具有调色剂层调节部件，该调色剂层调节部件以其弯曲部分按压调色剂载体并沿与调色剂承载件的预期旋转方向大致相反的方向延伸。 调色剂载体由硅橡胶，聚氨酯橡胶或类似的弹性材料制成，而调色剂层限制构件被实施为由金属制成的弹簧构件。
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公开(公告)号：US08306444B2
公开(公告)日：2012-11-06
申请号：US12610594
申请日：2009-11-02
申请人： Hisashi Fukasawa
发明人： Hisashi Fukasawa
IPC分类号： G03G15/00
CPC分类号： G03G15/5058 , G03G15/0131 , G03G2215/00059
摘要： An image forming apparatus includes an image holding member, a visible image detecting unit, a shielding part, a conveying passage, and a medium contact part. The visible image detecting unit includes a detecting part and detects a visible image, and the detecting part is disposed to face the image holding member. The shielding part is supported to be movable between a shielding position where the detecting part is shielded, and a detection permitting position where the detecting part is exposed. The medium contact part is supported to be movable between an entry position where the medium contact part enters a conveying passage, and a medium contact position where the medium contact part comes into contact with a medium and recedes from the entry position. The image forming apparatus moves the shielding part while interlocking with the movement of the medium contact part.
摘要翻译： 图像形成装置包括图像保持部件，可视图像检测部件，遮蔽部件，输送通路和介质接触部件。 可见图像检测单元包括检测部分并检测可见图像，并且检测部分设置成面对图像保持部件。 所述屏蔽部被支撑为能够在所述检测部被屏蔽的屏蔽位置与所述检测部露出的检测许可位置之间移动。 介质接触部分被支撑为能够在介质接触部分进入输送通道的入口位置和介质接触部分与介质接触并从进入位置后退的介质接触位置之间移动。 图像形成装置在与介质接触部的移动互锁的同时移动屏蔽部。
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公开(公告)号：US5832335A
公开(公告)日：1998-11-03
申请号：US889599
申请日：1997-07-08
申请人： Hisashi Fukasawa
发明人： Hisashi Fukasawa
CPC分类号： G03G15/1675
摘要： In a control method for a transfer roller, after detecting an interval between a first recording medium and a second recording medium following the first recording medium, one of a first control mode and a second control mode is selected. If the first control mode is selected, and if the interval is not longer than a time period corresponding to one turn of the transfer roller, the transfer roller is kept at a first voltage until a second transfer to the second recording medium is completed. If the second control mode is selected, and if the interval is longer than the time period corresponding to one turn, the transfer roller changes between the first voltage and a second voltage which are opposite in polarity, before the second transfer to the second recording medium.
摘要翻译： 在转印辊的控制方法中，在检测到在第一记录介质之后的第一记录介质和第二记录介质之间的间隔之后，选择第一控制模式和第二控制模式之一。 如果选择了第一控制模式，并且如果间隔不长于与转印辊的一圈相对应的时间段，则转印辊保持在第一电压，直到第二记录介质的转印完成。 如果选择第二控制模式，并且如果间隔长于对应于一匝的时间段，则在第二传送到第二记录介质之前，转印辊在极性相反的第一电压和第二电压之间变化 。
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公开(公告)号：US08547027B2
公开(公告)日：2013-10-01
申请号：US13237572
申请日：2011-09-20
IPC分类号： H05B37/00
CPC分类号： H05B33/0809
摘要： An object of the invention is to provide an LED drive circuit that can suppress the generation of harmonic noise. The LED drive circuit includes a rectifying circuit an LED array, and a current supply circuit which includes a capacitor and a time constant adjusting element, wherein the discharge time constant of the current supply circuit is set longer than the charge time constant of the current supply circuit, and wherein during a period of time when the magnitude of AC commercial power supply voltage is larger than the light emission threshold of the LED array, current to the light-emitting circuit is supplied mostly from the rectifying circuit, and during a period of time when the magnitude of AC commercial power supply voltage is not larger than the light emission threshold of the LED array, current to the light-emitting circuit is supplied from the current supply circuit.
摘要翻译： 本发明的目的是提供一种可以抑制谐波噪声的产生的LED驱动电路。 LED驱动电路包括LED阵列的整流电路和包括电容器和时间常数调节元件的电流供给电路，其中电流供给电路的放电时间常数被设定为长于电流供给的充电时间常数 并且其中在AC商用电源电压的大小大于LED阵列的发光阈值的时间段期间，到发光电路的电流主要来自整流电路，并且在一段时间 当交流商用电源电压的大小不大于LED阵列的发光阈值时，从电流供给电路供给到发光电路的电流。
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公开(公告)号：US20120068616A1
公开(公告)日：2012-03-22
申请号：US13237572
申请日：2011-09-20
IPC分类号： H05B37/00
CPC分类号： H05B33/0809
摘要： An object of the invention is to provide an LED drive circuit that can suppress the generation of harmonic noise. The LED drive circuit includes a rectifying circuit an LED array, and a current supply circuit which includes a capacitor and a time constant adjusting element, wherein the discharge time constant of the current supply circuit is set longer than the charge time constant of the current supply circuit, and wherein during a period of time when the magnitude of AC commercial power supply voltage is larger than the light emission threshold of the LED array, current to the light-emitting circuit is supplied mostly from the rectifying circuit, and during a period of time when the magnitude of AC commercial power supply voltage is not larger than the light emission threshold of the LED array, current to the light-emitting circuit is supplied from the current supply circuit.
摘要翻译： 本发明的目的是提供一种可以抑制谐波噪声的产生的LED驱动电路。 LED驱动电路包括LED阵列的整流电路和包括电容器和时间常数调节元件的电流供给电路，其中电流供给电路的放电时间常数被设定为长于电流供给的充电时间常数 并且其中在AC商用电源电压的大小大于LED阵列的发光阈值的时间段期间，到发光电路的电流主要来自整流电路，并且在一段时间 当交流商用电源电压的大小不大于LED阵列的发光阈值时，从电流供给电路供给到发光电路的电流。
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10.发明授权Charger for charging an image holding member included in an image forming apparatus 失效用于对包括在图像形成装置中的图像保持部件进行充电的充电器
公开(公告)号：US5479244A
公开(公告)日：1995-12-26
申请号：US291883
申请日：1994-08-17
申请人： Mabumi Kashihara , Hisashi Fukasawa
发明人： Mabumi Kashihara , Hisashi Fukasawa
IPC分类号： G03G15/02
CPC分类号： G03G15/0216
摘要： When a resolution R (dpi) and a process speed (mm/sec) are determined, a voltage generating circuit 100 applies to a charging member a voltage consisting of an AC component having a frequency f which lies in a range having a maximum value and a minimum value determined by RS/25.4.+-.120 (Hz), and a DC component superimposed on the AC component. The DC voltage should only be 0.5 kV to 1.2 kV while the peak-to-peak voltage of the AC component is selected to be slightly higher than the DC voltage. The peak-to-peak voltage should be higher than a discharge start voltage; a sufficient discharge occurs when it ranges from 0.9 kV to 1.3 kV. In this configuration, not only clear-cut character images are printed without regard to changes in environment, but also mesh images are free from moire and vertical stripes.
摘要翻译： 当确定分辨率R（dpi）和处理速度（mm / sec）时，电压产生电路100向充电部件施加由具有位于具有最大值的范围内的频率f的AC分量组成的电压，以及 由RS / 25.4 +/- 120（Hz）确定的最小值，以及叠加在AC分量上的DC分量。 直流电压仅为0.5kV至1.2kV，而交流分量的峰峰值电压选择为略高于直流电压。 峰峰值电压应高于放电启动电压; 当其范围为0.9kV至1.3kV时，发生充分的放电。 在这种配置中，不仅可以打印清晰的字符图像，而且不考虑环境的变化，而且网格图像也不会有莫尔条纹和垂直条纹。
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