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公开(公告)号：US3929397A
公开(公告)日：1975-12-30
申请号：US48497574
申请日：1974-07-01
申请人： RICOH KK
发明人： KAWAZU MOTOAKI
CPC分类号： G02B9/60
摘要： A diverging lens is spaced between a converging lens as an objective lens and the viewing screen, and two doublet lenses are spaced between the diverging lens and the converging lens. The projector illumination system focusses an image of the light source into the projection lens aperture which is spaced between the two doublet lenses. A meniscus lens is spaced between the converging lens and the slide being projected to increase the back focus distance to a value greater than the focal length of the projection lens so that the image of the light source fills the entire aperture, and to correct coma, astigmatism and distortion.
摘要翻译： 发散透镜在作为物镜的会聚透镜与观看屏幕之间分开，并且两个双透镜在发散透镜和会聚透镜之间间隔开。 投影仪照明系统将光源的图像聚焦在两个双透镜之间间隔开的投影透镜孔中。 弯月透镜在会聚透镜与被投影的幻灯片之间间隔开，以将后焦距延伸到大于投影透镜的焦距的值，使得光源的图像填充整个孔径，并且校正彗差， 散光和变形。
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公开(公告)号：US3924171A
公开(公告)日：1975-12-02
申请号：US39517573
申请日：1973-09-07
申请人： RICOH KK
发明人： UKAI TAKESHI , YAESHIMA MASAO , WATANABE KIMIO
CPC分类号： H02P7/05
摘要： A control circuit for controlling the rotation of a servo motor comprises a high gain differential amplifier for producing an output corresponding to the difference between a voltage output from a first potentiometer which moves with the servo motor and a voltage output from a second potentiometer which provides a setting for the angle of rotation of the servo motor. The control circuit further includes a high sensitivity switching circuit including programmable unijunction transistors for detecting the output from the differential amplifier to effect rotation of the servo motor in a forward or reverse direction.
摘要翻译： 用于控制伺服电动机的旋转的控制电路包括高增益差分放大器，用于产生对应于从伺服电动机移动的第一电位计输出的电压与从第二电位器输出的电压之间的差的输出， 设定伺服电机的旋转角度。 控制电路还包括高灵敏度开关电路，其包括用于检测来自差分放大器的输出的可编程单结晶体管，以在正向或反向方向上实现伺服电动机的旋转。
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公开(公告)号：US3919464A
公开(公告)日：1975-11-11
申请号：US42279373
申请日：1973-12-07
申请人： RICOH KK
发明人： KONDOH MITSURU
CPC分类号： H04N1/17
摘要： In a facsimile transmission system of the type in which image information obtained by scanning a subject copy is directly transmitted or compressed in code and then transmitted, there is provided a monitor circuit adapted to monitor the density of image information and means adapted to vary the density of scanning lines (the number of scanning lines per linear inch or milimeter) in response to the output of the monitor circuit. When the density of image information is low, the density of scanning lines is reduced; when the density is high, the density of scanning lines is increased.
摘要翻译： 在通过扫描被摄体拷贝获得的图像信息直接在代码中发送或压缩然后被发送的类型的传真传输系统中，提供了一种适于监视图像信息的密度的监视器电路以及适于改变密度的装置 的扫描线（每线性英寸或者几毫米的扫描线数）。 当图像信息的密度低时，扫描线的密度降低; 当密度高时，扫描线的密度增加。
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公开(公告)号：US3915874A
公开(公告)日：1975-10-28
申请号：US38325973
申请日：1973-07-27
申请人： RICOH KK
发明人： MACHIDA HAZIME
CPC分类号： G03G9/131 , G03G9/12 , Y10S430/105
摘要： A liquid developer for use in the electrophotographic transfer process comprising a liquid carrier with an electric resistance of not less than 109 Omega .cm and a dielectric constant not greater than 3, having dispersed therein a toner comprising particles of a colored substance coated with at least one resinous substance which will penetrate cloth or paper, together with fine particles being harder than the toner particles and having an average particle diameter of from 1 to 15 Mu .
摘要翻译： 一种用于电子照相转印方法的液体显影剂，包括电阻不小于10 9欧姆·厘米，介电常数不大于3的液体载体，其中分散有包含至少涂覆有色物质颗粒的调色剂 一种将透过布或纸的树脂物质，以及比调色剂颗粒硬的平均粒径为1至15μm的细颗粒。
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公开(公告)号：US3914539A
公开(公告)日：1975-10-21
申请号：US42914873
申请日：1973-12-28
申请人： RICOH KK
发明人： HASHIMOTO TAKEMI
CPC分类号： H04N1/32614 , H04N1/32363 , H04N1/33307
摘要： A system for automatically activating a facsimile receiver in response to a call signal is disclosed. In response to a call signal from a facsimile transmitter, a closed DC loop of a telephone subscriber line is established and a power supply circuit is energized, and in response to a status signal transmitted after the call signal, the facsimile receiver is set into a desired reception mode so that video information may be automatically received and the transmitted images or pictures may be reproduced at the receiver. When the reception of video information is completed, the closed DC loop is automatically opened and the power supply circuit is also automatically deenergized. Furthermore, if a malfunction of a recorder or printer in the facsimile receiver should occur, the received video information is switched to be transferred to a magnetic tape recorder. Therefore, after the malfunction of the printer has been remedied, the printer may reproduce the images or pictures from the video information recorded on the magnetic tape.
摘要翻译： 公开了一种用于响应于呼叫信号自动激活传真接收机的系统。 响应于来自传真发送机的呼叫信号，建立电话用户线路的闭合DC环路并且供电电路被激励，并且响应于在呼叫信号之后发送的状态信号，将传真接收机设置为 期望的接收模式，从而可以自动接收视频信息，并且可以在接收机处再现发送的图像或图像。 当视频信息的接收完成时，闭路直流回路自动断开，电源电路也自动断电。 此外，如果在传真机中发生记录器或打印机的故障，则接收到的视频信息被切换为传送到磁带录像机。 因此，打印机故障之后，打印机可以从记录在磁带上的视频信息再现图像或图像。
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6.发明授权Pyronyl-pyrylium sensitizers for electrophotographic organic photoconductors 失效用于电子照相有机光电导体的吡喃基 - 吡喃鎓敏化剂
公开(公告)号：US3907561A
公开(公告)日：1975-09-23
申请号：US40340273
申请日：1973-10-04
申请人： RICOH KK
发明人： KUBOTA TOMIO
CPC分类号： G03G5/09
摘要： Novel sensitizers for use in electrophotographic organic photoconductors, which are compounds having the following general formula:
(WHEREIN EACH OF R1 and R2 represents a radical selected from the group consisting of hydrogen, alkyl having 1 - 2 carbon atoms, alkoxy having 1 - 2 carbon atoms, halogen and nitro, each of n1 and n2 represents an integer from 1 to 2 in the case where said R1 and R2 represent a radical other than hydrogen, each X and Y when present, represent a fused phenyl nucleus having at most two substituents selected from the group defined for said R1 and R2 and Z represents an anionic functional group).摘要翻译： 用于电子照相有机感光体的新型敏化剂，其为具有以下通式的化合物：
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公开(公告)号：US3907423A
公开(公告)日：1975-09-23
申请号：US42279173
申请日：1973-12-07
申请人： RICOH KK
发明人： HAYASHI TOSHIO , GOTO KAZUO , HARUYAMA OSAMU , FUKUSHIMA ICHIRO , HIBI KUNIO
CPC分类号： G03G15/11
摘要： A device comprising a rotatable roller disposed for removing excess developing liquid from the developed surface of a photoreceptor in electrophotographic copying apparatus, along with a developing liquid removing means for removing the developing liquid from the roller. By adjusting the roller speed and the gap between the photoreceptor surface and the roller surface passing in opposite directions the thickness of the developing liquid on the photoreceptor surface may be regulated to produce better and drier copies.
摘要翻译： 一种装置，包括可旋转辊，其设置用于从电子照相复印装置中的感光体的显影表面除去多余的显影液，以及用于从辊中除去显影液的显影液除去装置。 通过调整辊速度和感光体表面与滚子表面之间的间隙，通过相反方向，可以调节感光体表面上的显影液的厚度以产生更好和更干燥的副本。
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公开(公告)号：US3904285A
公开(公告)日：1975-09-09
申请号：US38315973
申请日：1973-07-27
申请人： RICOH KK
发明人： YANAGAWA NOBUYUKI
CPC分类号： G03B21/115
摘要： A microreader having a projection screen and a card selection and retrieval apparatus for information cards each having, along a side thereof, a magnetic portion and coding bit positions at least a subset of which are represented by notches in that side of the card. A card selector unit selects a desired card from a card cassette, a card moving unit moves the selected card to a desired projection position, and then a light source and a mirror unit are moved to a position with respect to the selected card for projected a desired frame of the card on the screen. An operator of the microreader sets knobs to indicate the number of the desired card, and sets additional knobs to indicate the desired frame of that card; the rest is done automatically by the invented microreader.
摘要翻译： 具有投影屏幕的微读取器和用于信息卡的卡片选择和检索装置，每个信息卡沿其一侧具有磁性部分，并且其至少一个子集的编码位位置由卡的该侧的凹口表示。 卡选择器单元从卡片盒中选择所需的卡，卡片移动单元将所选择的卡移动到期望的投影位置，然后将光源和反射镜单元移动到相对于所选择的卡片的位置，以便投射 屏幕上所需的卡片框架。 微读取器的操作者设置旋钮以指示所需卡的编号，并设置附加旋钮以指示该卡的所需帧; 其余的由本发明的微读取器自动完成。
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公开(公告)号：US3898957A
公开(公告)日：1975-08-12
申请号：US42721273
申请日：1973-12-21
申请人： RICOH KK
发明人： MASUMURA MASAO
CPC分类号： G03G15/101
摘要： A developing unit comprises a developing box having an opening, which is brought into abutment against a surface on which an electrostatic latent image is formed, thereby forming a liquidtight developing chamber. A liquid developer is supplied into the developing chamber to develop the latent image. At least an inner wall of the developing box is formed by or coated with a liquidrepellent resin.
摘要翻译： 显影单元包括具有开口的显影盒，该开口与形成有静电潜像的表面邻接，由此形成液密显影室。 将液体显影剂供应到显影室中以显影潜像。 显影盒的至少内壁由拒水树脂形成或涂覆有疏液性树脂。
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公开(公告)号：US3898928A
公开(公告)日：1975-08-12
申请号：US39366773
申请日：1973-08-31
申请人： RICOH KK
发明人： KANEKO TAMAKI
摘要： An offset lithographic duplicating machine is adapted to reproduce master plates having markings on marginal areas indicative of the number of copies to be made therefrom. A photoelectric reading device reads the markings as a master plate enters the machine from a storage area and sends signals to a memory device which records the number of copies indicated. A counter records the copies completed and the master plate is ejected from the machine when the full number is completed. A master plate feed mechanism then feeds a succeeding master plate from the storage area and the process is repeated.
摘要翻译： 胶版复印机适用于在边缘区域上再现具有标记的主板，指示由其制作的份数。 当主板从存储区域进入机器时，光电读取装置读取标记，并将信号发送到记录指定份数的存储装置。 一个计数器记录完成的副本，并且当完整号码完成时，主盘从机器弹出。 主板进给机构然后从存储区域馈送后续的主板，并重复该过程。
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