公开(公告)号：US4457506A

公开(公告)日：1984-07-03

申请号：US302877

申请日：1981-09-16

申请人： William H. Ashbee ,  Mark A. Beran ,  Donald F. Colglazier ,  Donovan M. Janssen ,  John P. Mantey ,  Ronald J. Martin ,  Gerald P. Patch ,  Larry E. Rittenhouse ,  James A. Valent

发明人： William H. Ashbee ,  Mark A. Beran ,  Donald F. Colglazier ,  Donovan M. Janssen ,  John P. Mantey ,  Ronald J. Martin ,  Gerald P. Patch ,  Larry E. Rittenhouse ,  James A. Valent

IPC分类号： B65H1/30 ,  B65H7/20 ,  B65H83/00 ,  G03B27/62 ,  G03G15/00 ,  G03G15/04 ,  G03G21/00 ,  B65H5/22 ,  B65H31/12

CPC分类号： G03B27/6257

摘要： A servo-controlled recirculating automatic document feeder (RADF) includes a plurality of independently driven document transport devices. A picker mechanism separates documents in seriatim from a stack. An entry turnaround transport device buffers and delivers picked documents to a platen transport device for exposure. After exposure, the document is transported along a simplex or duplex path for duplex or simplex copying. The document is then buffered in an exit turnaround transport device and is subsequently returned to the stack. Each transport device is independently driven by a motor and a closed-loop servo. A common reference oscillator generates source signals for the servo-loops. A microcomputer operates on the source signals and generates reference signals for driving the transport devices.

摘要翻译： 伺服控制的循环自动送纸器（RADF）包括多个独立驱动的文件传送装置。 选择器机制将文件与堆栈分离。 进入周转运输装置缓冲并将拾取的文件传送到用于曝光的压板输送装置。 曝光后，文档沿单工或双工路径传输，用于双面或单面复印。 然后将文档缓冲在出口周转传输设备中，并随后返回到堆栈。 每个运输装置由电机和闭环伺服独立驱动。 公共参考振荡器产生伺服环路的源极信号。 微型计算机对源信号进行操作，并产生用于驱动传送装置的参考信号。

公开(公告)号：US4675761A

公开(公告)日：1987-06-23

申请号：US835617

申请日：1986-03-03

申请人： William H. Ashbee ,  Richard S. Kilen ,  Alan J. Kirton ,  Larry E. Rittenhouse ,  James A. Valent

发明人： William H. Ashbee ,  Richard S. Kilen ,  Alan J. Kirton ,  Larry E. Rittenhouse ,  James A. Valent

IPC分类号： G11B21/08 ,  G11B5/55

CPC分类号： G11B5/5526

摘要： An apparatus and method are disclosed for positioning magnetic heads relative to the recording tracks of a recording medium such as a floppy disk having circular, concentric recording tracks formed thereon. The magnetic heads are mounted on a head carriage, and the head carriage is moved, in response to received command pulses, so that the heads are moved linearly, by step increments, along a radius of the floppy disk. The heads are thereby moved across the spaced tracks on the disk, with each incremental movement of the heads being a distance less than the distance between the tracks, and being, for example, one-half or one-fourth of the total distance between tracks. Acoustic noise due to head movement is minimized by moving the heads by increments less than the distance between the tracks, with such movement avoiding exciting the resonances of the head moving apparatus. The magnetic heads are initially moved at a rate known to avoid exciting the resonance and, during such initial movement, the rate of received command pulses is determined. If the received command pulse rate is within a predetermined range, and is a rate that will not excite resonance, continued movement of the head is at the rate of the received command pulses.

摘要翻译： 公开了一种用于将磁头相对于记录介质的记录轨道定位的装置和方法，诸如形成有圆形同心记录磁道的软盘。 磁头安装在头部托架上，并且头托架响应于接收到的命令脉冲而移动，使得头部沿着软盘的半径以逐步的增量线性移动。 磁头由此移动到磁盘上的间隔的磁道上，磁头的每次增量运动的距离都小于轨道之间的距离，并且例如是轨道之间的总距离的一半或四分之一 。 通过以小于轨道之间的距离的方式移动头部，使头部运动引起的声音噪声最小化，避免激发头部移动装置的共振。 磁头首先以已知的速度移动以避免激发谐振，并且在这样的初始移动期间确定接收到的命令脉冲的速率。 如果接收到的指令脉冲速率在预定范围内，并且是不会激发共振的速率，则头的继续移动处于接收到的命令脉冲的速率。

公开(公告)号：US4511242A

公开(公告)日：1985-04-16

申请号：US452233

申请日：1982-12-22

申请人： William H. Ashbee ,  Donovan M. Janssen ,  Ronald J. Martin ,  William S. Seaward

发明人： William H. Ashbee ,  Donovan M. Janssen ,  Ronald J. Martin ,  William S. Seaward

IPC分类号： B65H9/00 ,  G03G15/00 ,  B65H9/20 ,  G03B27/00

CPC分类号： B65H9/002 ,  G03G15/6564 ,  G03G15/6567 ,  G03G15/235 ,  G03G2215/00405 ,  G03G2215/00523 ,  G03G2215/00569

摘要： Electronic alignment of paper feeding components in a machine such as an electrophotographic copier machine is achieved by placing an original master containing vernier calibrations on the document glass and a target master containing vernier calibrations in the copy paper bin. Thereupon, the machine is operated to produce a copy of the original master onto the target master producing a double set of vernier calibrations on the target master, which, when compared, provides information relating to skew angle, side edge relationship and leading edge alignment of the image to the copy paper. The vernier calibrations provide data which are keyed into a microprocessor controlled copy feeding servo mechanism to correct copy paper position and remove misalignment. The operation is repeated for various combinations of paper feed paths with techniques of original document placement and for duplex operation so that the copy paper matches image position for all modes of copier operation. For printer mode of operation, the master vernier is printed to produce the needed image.In addition, sensors are located in the copy paper path to automatically correct for deviations in the copy sheet feeding unit, caused by wear, for example, over a period of time.Sensors are also located in the document feeder so that corrections in the position of the copy paper may be made on an individualized and dynamic basis to electronically correct for misalignment of individual originals on the document glass.

摘要翻译： 在诸如电子照相复印机之类的机器中的供纸部件的电子对准通过将包含游标校准的原始主机放置在稿台玻璃上，并且在复印纸盒中放置包含游标校准的目标主机来实现。 因此，机器被操作以将原始主机的副本产生到目标主机上，在目标主机上产生双组游标校准，当比较时，提供与偏斜角，侧边缘关系和前沿对准相关的信息 图像到复印纸。 游标校准提供数据，这些数据被键入微处理器控制的复制馈送伺服机构以校正复印纸位置并消除未对准。 对于各种纸张馈送路径的组合，通过原始文档放置和双面操作的技术重复操作，使得复印纸与复印机操作的所有模式匹配图像位置。 对于打印机操作模式，打印主游标以产生所需的图像。 此外，传感器位于复印纸路径中，以自动校正复印纸馈送单元中由磨损（例如，一段时间）引起的偏差。 传感器也位于文件馈送器中，使得可以在个性化和动态的基础上对复印纸的位置进行校正，以电子地校正文档玻璃上的各个原稿的不对准。