公开(公告)号：US4515077A

公开(公告)日：1985-05-07

申请号：US515151

申请日：1983-07-19

申请人： Lewis Davidson ,  Brian Lees ,  Eric K. Lytra

发明人： Lewis Davidson ,  Brian Lees ,  Eric K. Lytra

IPC分类号： B41N1/24

CPC分类号： B41N1/248 ,  Y10S101/36

摘要： A duplicating stencil has its heading strip in the form of two separate regions separated by a perforation line.The holes on one region have a different arrangement from those on the other regions, so that tearing along the perforation line allows one region to be separated from the rest of the stencil and to leave the holes of the remaining region as the effective mounting holes.A single image field and a single top edge guide line apply for all of the heading strip regions.

摘要翻译： 复制的模板的标题条以两条分开的区域的形式由穿孔线分开。 一个区域上的孔具有与其他区域上的孔不同的布置，使得沿着穿孔线的撕裂允许一个区域与模板的其余部分分离并留下剩余区域的孔作为有效的安装孔。 单个图像场和单个顶部边缘引导线适用于所有标题条带区域。

公开(公告)号：US4446791A

公开(公告)日：1984-05-08

申请号：US378245

申请日：1982-05-14

申请人： Colin R. Stevens ,  Victor Ababurko

发明人： Colin R. Stevens ,  Victor Ababurko

IPC分类号： B41L13/18 ,  B41L13/08 ,  C09D11/02 ,  B05C11/10

CPC分类号： B41L13/08 ,  Y10S101/45

摘要： A multi-cylinder stencil duplicator includes ink-applying means in the form of a coating member offering a fixed nip between the coating member and a cylinder of the duplicator, ink being applied to one side of that nip and being held back as a wedge at the nip during rotation of the duplicator cylinder. The dispensing of ink to the wedge is controlled in response to variations in the capacitance between the coating member and the cylinder, so that when the ink wedge drops below a given threshold value further ink is dispensed.

摘要翻译： 多圆筒模版复印机包括涂层构件形式的油墨施加装置，其在涂覆构件和复印机的圆筒之间提供固定的压区，油墨被施加到该辊隙的一侧并作为楔形物保持 在复印机筒的旋转期间的辊隙。 响应于涂层构件和气缸之间的电容的变化来控制向楔形物的分配墨水，使得当墨水楔落低于给定的阈值时，进一步分配墨水。

公开(公告)号：US4391503A

公开(公告)日：1983-07-05

申请号：US247309

申请日：1981-03-25

申请人： Robert J. Pugh

发明人： Robert J. Pugh

IPC分类号： G03G15/09

CPC分类号： G03G15/09

摘要： A magnetic brush developer unit has a toner sump below the level of the magnetic brush supporting roller-shell combination and a magnetic pump rotor rotatable in the bottom of the sump to agitate toner and to return toner to a location from which it is attracted onto the shell of the magnetic brush roller. A scraper blade is effective to remove substantially all the circulating brush-forming toner from the shell and to cause at least a part of the removed toner to fall into the sump to be pumped back up by the magnetic pump rotor. An optional second scraper blade, directed in the opposite direction from that of the first scraper blade, removes any lumps of agglomerated toner which may be moving countercurrent to the main magnetic brush-forming toner mass.

摘要翻译： 磁刷显影单元具有低于磁刷支撑辊 - 壳组合的水平面的调色剂槽，以及可在贮槽底部旋转的磁力泵转子，以搅拌调色剂并使调色剂返回至吸引到该位置上的位置 外壳的磁刷辊。 刮刀可有效地从外壳中去除基本上所有的循环刷毛调色剂，并且使得至少一部分去除的调色剂落入贮槽中以由磁泵转子泵回。 沿与第一刮刀相反的方向引导的可选的第二刮刀除去可能与主磁刷形成调色剂块逆流的任何聚集的调色剂块。

公开(公告)号：US4535690A

公开(公告)日：1985-08-20

申请号：US475623

申请日：1983-03-15

申请人： Jonathan Gestetner ,  Cyril Green ,  Thomas Hanrahan

发明人： Jonathan Gestetner ,  Cyril Green ,  Thomas Hanrahan

IPC分类号： B41J31/10 ,  B41N1/24 ,  B41L13/14

CPC分类号： B41N1/248 ,  Y10T428/24777

摘要： Duplicating stencils of the kind used on typewriters and word-processors are given a much improved working life by providing the stencil sheet with flexible reinforcement at that part of the sheet which first contacts the sheet of paper which receives the duplicated image, and between the upper limit of the area of the sheet which is imaged and the adjacent edge.

摘要翻译： 在打字机和文字处理机上使用的复印模板通过在纸张的该部分处提供柔性加强件而提供了大大改善的工作寿命，该纸张首先接触接收复制图像的纸张，并且在上部 被成像的片材和相邻边缘的面积的极限。

公开(公告)号：US4348979A

公开(公告)日：1982-09-14

申请号：US258029

申请日：1981-04-27

申请人： Joseph W. Daintrey

发明人： Joseph W. Daintrey

IPC分类号： G03G15/08 ,  G03G15/09 ,  G03G15/00

CPC分类号： G03G15/09 ,  G03G15/0877

摘要： A magnetic brush monocomponent developer unit includes a doctor blade for rendering uniform the layer of toner magnetically attracted to the surface of a shell within which a rotating magnetic roller is positioned. A coil connected to the doctor blade receives an alternating magnetic field in response to rotation of the roller and the induced voltage fluctuations in that coil are sensed to determine when the voltage amplitude exceeds a given threshold value (indicative of a low amount of toner held back by the doctor blade) at which application of toner to the layer by way of a metering roller and sealing brushes is resumed.

摘要翻译： 磁刷单组分显影单元包括刮刀，用于使磁性吸引到旋转磁辊所在壳体的表面的调色剂层均匀。 连接到刮刀的线圈响应于辊的旋转而接收交变磁场，并感测到该线圈中的感应电压波动以确定电压幅度何时超过给定阈值（指示低量的调色剂滞留 通过刮刀），其中通过计量辊和密封刷将所述调色剂施加到所述层。

公开(公告)号：US4443742A

公开(公告)日：1984-04-17

申请号：US326070

申请日：1981-11-30

申请人： Siegfried Schneider

发明人： Siegfried Schneider

IPC分类号： G03B27/34 ,  G03B27/50 ,  G03B27/52 ,  G03G15/04 ,  G03G15/043 ,  H02P5/52 ,  H02P29/00 ,  G05B1/06

CPC分类号： G03B27/525 ,  Y10S388/911 ,  Y10S388/915

摘要： A phase locked loop control system, in particular for use for synchronizing the operation of a carriage drive motor and a main drive motor in a photocopier, uses a digital frequency- and phase-comparator and relies on the output pulses, used to power the slaved motor, being shaped so that each positive-going d.c. drive pulse is followed by a negative-going d.c. braking pulse of smaller amplitude, to provide positive registration of the slaved motor with the pulsed driving signal.

摘要翻译： 特别是用于使复印机中的托架驱动电动机和主驱动电动机的操作同步的锁相环控制系统使用数字频率和相位比较器，并且依赖于输出脉冲，用于为从动装置提供动力 电机，形状使每个正向直流 驱动脉冲之后是负向的直流。 制动脉冲幅度较小，提供从动电机与脉冲驱动信号的正对准。

公开(公告)号：US4426149A

公开(公告)日：1984-01-17

申请号：US326063

申请日：1981-11-30

申请人： Klaus Kuemmel ,  Gerhard Klapettek ,  Siegfried Schneider

发明人： Klaus Kuemmel ,  Gerhard Klapettek ,  Siegfried Schneider

IPC分类号： G03B27/34 ,  G03B27/50 ,  G03B27/52 ,  G03G15/04 ,  G03G15/043 ,  H02P5/52 ,  H02P29/00 ,  G03G15/00

CPC分类号： G03B27/525 ,  Y10S388/911 ,  Y10S388/915

摘要： A photocopier scanning system has a scanning member (which may be the scanning lamp, a scanning mirror, a scanning slit, or a document carrier) on a scanning system powered by a d.c. drive motor synchronized to the rotation of the a.c. main drive motor for the other components of the photocopier. A variable programmer using a phase locked loop control circuit including pulse encoders slaved to the motors maintains strict synchronization between the scanning drive motor and the main drive motor with an appropriate proportionality dependent upon the image magnification/reduction ratio of the photocopier. The optical system may include a movable zoom lens element which gives infinitely variable selection of the magnification/reduction ratio, and which can readily be connected to the programmer to achieve an infinitely variable proportionality between the speeds of the scanning drive motor and the main drive motor to suit any such magnification/reduction ratio. Also the output of the exposure lamp is variable in accordance with the magnification/reduction ratio.

摘要翻译： 复印机扫描系统在由直流电源供电的扫描系统上具有扫描构件（其可以是扫描灯，扫描镜，扫描狭缝或文档载体）。 驱动电机同步旋转a.c. 复印机其他部件的主驱动电机。 使用包括从动电机的脉冲编码器的锁相环控制电路的可变编程器根据复印机的图像倍率/缩小率，以适当的比例来保持扫描驱动马达与主驱动马达之间的严格同步。 该光学系统可以包括一个可移动的变焦透镜元件，它可以无级地选择放大/缩小比率，并且可以容易地连接到编程器，以实现扫描驱动马达和主驱动马达的速度之间的无级变比比例 以适应任何这种放大/缩小比例。 此外，曝光灯的输出也可以根据放大率/缩小率而变化。

公开(公告)号：US4380383A

公开(公告)日：1983-04-19

申请号：US206904

申请日：1980-11-14

申请人： Joseph W. Daintrey ,  John Rushton ,  Michael Willis

发明人： Joseph W. Daintrey ,  John Rushton ,  Michael Willis

IPC分类号： G03G15/22 ,  G03B27/42 ,  G03G15/00 ,  G03G15/04

CPC分类号： G03B27/423 ,  G03G15/04009

摘要： A copying system and apparatus wherein a first electrostatic image of an original is formed and developed on a first photoconductive surface, and second electrostatic images of the developed image are repeatedly formed on a second photoconductive surface by illumination of the first surface. The second images, which can be formed at high speed, are developed and transferred to copy material.

摘要翻译： 一种复印系统和装置，其中在第一光电导表面上形成和显影原稿的第一静电图像，并且通过照射第一表面在第二光电导表面上重复形成显影图像的第二静电图像。 可以高速形成的第二个图像被开发并转移到复印材料上。