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1.发明授权Method and arrangement for eliminating undesired density variations in electrostatically created copies of an original 失效用于消除原始静电产生的副本中的不期望的密度变化的方法和装置
公开(公告)号：US4030106A
公开(公告)日：1977-06-14
申请号：US615795
申请日：1975-09-22
IPC分类号： G03G15/32 , H04N1/401 , G03G15/044
CPC分类号： G03G15/325 , H04N1/4015
摘要： An electric charge is created on a moving reproduction carrier by each of a plurality of electrodes extending in a line perpendicular to the direction of transport of the reproduction carrier. Each of the signals applied to the electrodes has an amplitude corresponding to the density of the corresponding point of the original. The charge created by the electrode has undesirable variations resulting from differences in the electrode characteristics and from differences in the amplifiers amplifying the signal before application to each electrode. After each charge distribution from a copy has been created, a test signal is supplied to the inputs of all amplifiers. This creates a test charge distribution on the reproduction carrier. After developing of the reproduction carrier the test line created by developing of the test charge distribution is scanned photoelectrically. A differential amplifier compares each of the so-scanned signals with a reference signal and furnishes an error signal as a function of the difference therebetween. The error signal is utilized to vary the gain of the amplifier associated with the electrode.
摘要翻译： 通过在垂直于再现载体的传送方向的一行中延伸的多个电极中的每一个产生在移动再现载体上的电荷。 施加到电极的每个信号具有对应于原始对应点的密度的幅度。 由电极产生的电荷具有由电极特性的不同导致的不期望的变化，以及在施加到每个电极之前放大信号的放大器的差异。 在创建了从副本的每个电荷分配之后，将测试信号提供给所有放大器的输入。 这会在再现载体上产生测试电荷分布。 在再现载体的开发之后，通过显影测试电荷分布产生的测试线被光电扫描。 差分放大器将所扫描信号中的每一个与参考信号进行比较，并提供作为它们之间的差的函数的误差信号。 误差信号用于改变与电极相关联的放大器的增益。
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2.发明授权
公开(公告)号：US4605954A
公开(公告)日：1986-08-12
申请号：US605494
申请日：1984-04-30
CPC分类号： H04N1/6027 , H04N9/68
摘要： An image to be printed in a CRT or video color printer is sensed to generate red, blue and green signals respectively representing a characteristic of the image in red, blue and green. The signals are processed in a matrix circuit to generate a luminance signal. The red and blue signals are subtracted from the luminance signal in operational amplifiers to obtain unadjusted difference signals. Each of the unadjusted difference signals is multiplied by an adjusting factor which is established using variable resistors and functions to provide level adjustment. The adjusted difference signals obtained in this manner are subtracted from the luminnce signal in respective operational amplifiers to yield modified red and blue signals. The modified red and blue signals are processed together with the luminanace signal in a second matrix circuit to generate a modified green signal. Control of color saturation may be achieved simply and inexpensively by adjusting the variable resistors and thereby changing the adjusting factor which determines color saturation.
摘要翻译： 感测要在CRT或视频彩色打印机中打印的图像，以产生分别表示红色，蓝色和绿色图像特征的红色，蓝色和绿色信号。 在矩阵电路中处理信号以产生亮度信号。 在运算放大器中从亮度信号中减去红色和蓝色信号，以获得未调整的差分信号。 每个未调整的差分信号乘以使用可变电阻器建立的调整因子和用于提供电平调整的功能。 从各运算放大器中的亮度信号中减去以这种方式获得的经调整的差分信号，以产生修改的红色和蓝色信号。 修改的红色和蓝色信号与第二矩阵电路中的亮度信号一起被处理以产生修改的绿色信号。 彩色饱和度的控制可以通过调节可变电阻器简单且廉价地实现，从而改变确定色彩饱和度的调节因子。
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3.发明授权Process for the transfer printing of electrostatic charge images using N.sub.2 atmosphere 失效使用N {HD 2 {B气氛的静电荷图像的转印打印的方法
公开(公告)号：US4168973A
公开(公告)日：1979-09-25
申请号：US801461
申请日：1977-05-31
IPC分类号： G03G15/01 , B29C59/12 , G03G15/18 , G03G13/044
摘要： In a process for the transfer printing of charge images the carrier of a primary charge image is covered with an insulating film the backside of which is electrically charged by means of a corona discharge under concentrated gaseous nitrogen, and the film now carrying the secondary charge image is subsequently removed from the carrier of the primary charge image.
摘要翻译： 在充电图像的转印打印的过程中，主充电图像的载体被绝缘膜覆盖，绝缘膜的背面通过在浓缩气态氮下的电晕放电而带电，并且现在承载二次充电图像的膜 随后从主充电图像的载体中去除。
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4.发明授权
公开(公告)号：US4034186A
公开(公告)日：1977-07-05
申请号：US665382
申请日：1976-03-10
CPC分类号： G03G15/2007
摘要： In an electro-photographic copier of the type wherein an image is formed on an image-carrying sheet and is thereafter fixed by subjecting the sheet at a fixing station to the influence of heat, a combination comprises a heating device at the fixing station for fixing an image on a sheet, and a conveyor device for moving the heating device relative to a sheet located in the fixing station at a predetermined speed sufficient to permit the heating device to fix the image on the sheet and also to prevent charring of the latter. A sheet-advancing device advances a sheet through the fixing station in direction opposite to the direction of movement of the conveyor device so as to increase the relative speed between the heating device and the advancing sheet. The movement of the heating device relative to the sheet prevents charring or burning of the sheet in the event that the sheet-advancing device malfunctions and advances a sheet at speeds lower than its normally rated speed, including zero speed, i.e., complete breakdown.
摘要翻译： 在一种电子照相复印机中，其中图像形成在图像载体片上，然后通过在定影台处理片材而受到热的影响而固定，组合包括在固定位置的加热装置，用于固定 片材上的图像和用于相对于位于定影站中的片材以预定速度移动加热装置的输送装置，该预定速度足以允许加热装置将图像固定在片材上，并且还防止加热装置的焦炭化。 片材推进装置使片材沿着与输送装置的移动方向相反的方向推进定影台，以增加加热装置和推进片材之间的相对速度。 加热装置相对于片材的运动在片材提前装置发生故障并以低于其正常额定速度（包括零速度即完全击穿）的速度前进的情况下防止片材烧焦或燃烧。
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公开(公告)号：US4017171A
公开(公告)日：1977-04-12
申请号：US596737
申请日：1975-07-17
申请人： Richard Wick , Friedrich Bestenreiner , Dieter Giglberger , Gunter Wetzel , Walter Schott , Josef Leonard V. Engeland , Willy Gommaire Verlinden
发明人： Richard Wick , Friedrich Bestenreiner , Dieter Giglberger , Gunter Wetzel , Walter Schott , Josef Leonard V. Engeland , Willy Gommaire Verlinden
CPC分类号： G03G15/0142 , G03G15/26
摘要： A color copying apparatus wherein a copy carrier sheet is attracted by the suction chamber of a carriage which is reciprocable along a horizontal path past an exposure station and along a battery of aligned developing units. After each exposure with a different filter, the sheet is moved into register with a different developing unit. The carriage is moved by an endless belt which has a pin receivable in one of two vertical slots on a plate-like female coupling member of the carriage. Guide rollers automatically disengage the pin from the coupling member when the carriage reaches the exposure station. The suction chamber is then attracted by electromagnets so that two sockets of the suction chamber move downwardly and receive stationary centering pins which hold the carrier in a predetermined position during each of a series of exposures. This insures accurage register of successively projected and developed images in the three basic colors.
摘要翻译： 一种彩色复印装置，其中复印载体片材被滑架的吸入室吸引，所述吸入室沿着水平路径往复运动经过曝光站并且沿着一组排列的显影单元。 在使用不同的过滤器进行每次曝光之后，将纸张移动到与不同的显影单元对准。 托架通过环形带移动，该环带具有可接收在托架的板状阴联接构件上的两个垂直槽之一中的销。 当托架到达曝光站时，引导辊自动将销与联接构件分离。 吸入室然后被电磁体吸引，使得吸入室的两个插座向下移动并接收固定的定心销，其在一系列曝光期间的每一个期间将载体保持在预定位置。 这确保了三种基本颜色的连续投影和显影图像的精度寄存器。
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6.发明授权Method and arrangement for protecting sheets from charring in copying machines 失效在复印机中保护纸张不会烧焦的方法和装置
公开(公告)号：US4049947A
公开(公告)日：1977-09-20
申请号：US665383
申请日：1976-03-10
CPC分类号： G03G15/2007
摘要： In an electro-photographic copier of the type wherein an image is formed on an image-carrying sheet and is thereafter fixed by subjecting the sheet at a fixing station to the influence of heat, a combination comprises a heating arrangement at the fixing station for fixing an image on a sheet, and a conveyor arrangement for advancing the sheet through the station at a predetermined speed sufficient to permit the heating arrangement to fix the image on the sheet. An automatic de-actuating timing switch is employed to prevent charring of the sheet in the event that the latter is advanced through the fixing station at a speed lower than said predetermined speed.
摘要翻译： 在这种类型的电子照相复印机中，其中图像形成在图像载体片上，然后通过在定影台处理片材而受到热的影响而固定，组合包括在定影台处的固定加热装置 片材上的图像，以及传送装置，用于以足以允许加热装置将图像固定在片材上的预定速度使片材前进。 采用自动停止定时开关来防止在后者以低于所述预定速度的速度前进通过定影站的情况下的纸张烧焦。
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公开(公告)号：US4031550A
公开(公告)日：1977-06-21
申请号：US661333
申请日：1976-02-25
CPC分类号： H04N3/38
摘要： For reproduction on a television receiver, movie film is moved continuously past a scanning region. Each image is scanned three times in direction opposite to film motion, the starting point of each scan being displaced one-third of image height in direction of motion of film.
摘要翻译： 为了在电视接收机上再现，电影胶片连续移动经过扫描区域。 每个图像在与胶片运动相反的方向扫描三次，每个扫描的起始点在胶片的运动方向上移位图像高度的三分之一。
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公开(公告)号：US4013356A
公开(公告)日：1977-03-22
申请号：US566685
申请日：1975-04-10
CPC分类号： G03G15/101
摘要： An electrophotographic copying machine wherein electrostatic images at the periphery of a rotary cylindrical printing base are transported below a grounded developing electrode having in its concave underside a series of shallow grooves each receiving fresh liquid toner through one or more inclined supply ports at the upstream end and each discharging spent liquid toner into one or more inclined evacuating ports at the downstream end thereof. The flow of liquid toner in the grooves is laminar, and the speed of liquid flow in the grooves equals or approximates the speed of movement of the printing base relative to the electrode. The electrode carries several distancing rolls which extend beyond its underside and the electrode is biased by springs so that the distancing rolls bear against and roll along the periphery of the printing base.
摘要翻译： 一种电子照相复印机，其中在旋转圆柱形印刷基底的周边处的静电图像被传送到具有在其凹下侧的接地显影电极下面的一系列浅槽，每个浅槽通过在上游端的一个或多个倾斜供应端口接收新鲜的液体调色剂， 每个排出的废液体调色剂在其下游端处于一个或多个倾斜排气口。 槽中的液体调色剂的流动是层流的，并且槽中的液体流速等于或接近印刷基底相对于电极的移动速度。 电极承载几个延伸超过其下侧的间隔辊，电极被弹簧偏压，使得隔离辊承载并沿着印刷基底的周边滚动。
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公开(公告)号：US3984187A
公开(公告)日：1976-10-05
申请号：US549683
申请日：1975-02-13
CPC分类号： G03B27/725
摘要： An original bears a pictorial image, or the like. The original is illuminated with first and second light and the image on the original is projected onto a copy carrier. The spatial variation of the intensity of the first light after the first light has been modulated in intensity by the image on the original is detected. The contrast of the image projected onto the copy carrier compared to the contrast of the image on the original is changed by changing the spatial variation of the second light in dependence upon the detected spatial variation of the intensity of the modulated first light.
摘要翻译： 一个原始的照片是一个图形，或者像。 原件用第一和第二个光照亮，原稿上的图像投影到复印机上。 检测第一光之后的第一光的强度的空间变化，通过原稿上的图像强度调制。 通过根据检测到的调制的第一光的强度的空间变化来改变第二光的空间变化，改变投影到拷贝载体上的与原始图像的对比度相比的图像的对比度。
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10.发明授权Method of improving the electrical contact between the insulating image carrier and conductive support in electrographic recording processes 失效改善电摄影记录过程中绝缘图像载体和导电支持体之间的电接触的方法
公开(公告)号：US4265996A
公开(公告)日：1981-05-05
申请号：US801460
申请日：1977-05-31
CPC分类号： G03G15/06 , Y10S430/102
摘要： For improving the electrical contact between an insulating image carrier and a conductive support during development of an electrostatic charge image in electrographic recording processes a gas permeable support is used through which gas ions are brought to the back of the carrier while development takes place on the image side.
摘要翻译： 为了在电摄影记录过程中在静电电荷图像显影期间改善绝缘图像载体和导电支持体之间的电接触，使用透气性支持体，气体离子通过该气体离子被引导到载体的背面，同时在图像上进行显影 侧。
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