Imaging by laser beam scanning
    1.
    发明授权
    Imaging by laser beam scanning 失效
    激光束扫描成像

    公开(公告)号:US4853710A

    公开(公告)日:1989-08-01

    申请号:US936079

    申请日:1986-11-28

    摘要: A laser beam scanning system includes a laser for emitting a laser beam modulated with image information to be recorded and a deflecting device, such as polygon mirror, for deflecting the laser beam over a predetermined angle repetitively, so that the laser beam is scanned on a scanning surface, thereby an image is formed on the scanning surface. When a plurality of laser beams are used at the same time, the plurality of laser beams are arranged in an array inclined with respect to the scanning direction. In this case, a sync sensor generates a sync signal in response to a laser beam received in the first place. When a polygon mirror is so structured to have a reflecting surface which is defined by a curved surface having a predetermined radius of curvature, a f.theta. lens may be discarded. In this case, when a transparent layer is formed on this curved reflecting surface, no distortion in scanning speed is produced even without using any electrical correction. Besides, it is also preferable to control the intensity of laser beam so as to maintain the image density of a resultant image at constant.

    摘要翻译: 激光束扫描系统包括用于发射用待记录的图像信息调制的激光束的激光器和诸如多面镜的偏转装置,用于使激光束重复地偏转预定角度,使得激光束被扫描 扫描表面,从而在扫描表面上形成图像。 当同时使用多个激光束时,多个激光束被布置成相对于扫描方向倾斜的阵列。 在这种情况下,同步传感器响应于首先接收的激光束产生同步信号。 当多面镜被构造为具有由具有预定曲率半径的曲面限定的反射表面时,可以丢弃fθ透镜。 在这种情况下,当在该弯曲反射面上形成透明层时,即使不进行任何电校正,也不会产生扫描速度的变形。 此外,还优选控制激光束的强度,以便使得到的图像的图像浓度保持恒定。

    Image forming apparatus capable of changing dotting density
    2.
    发明授权
    Image forming apparatus capable of changing dotting density 失效
    能够改变点密度的图像形成装置

    公开(公告)号:US5194879A

    公开(公告)日:1993-03-16

    申请号:US658780

    申请日:1991-02-21

    CPC分类号: H04N1/4056 G06K15/1204

    摘要: An image forming apparatus includes a laser beam scanning unit for scanning a recording medium in synchronism with a writing clock signal so that a dotted image is formed on the recording medium, a counter for carrying out a count operation in synchronism with the writing clock signal so that one count value or a plurality of count values determining a scanning area is/are obtained, a first controller for activating or inactivating the laser beam scanning unit based on one or the plurality of count values, a dip switch unit for specifying a dotting density, a second controller for controlling the frequency of the writing clock signal and/or a speed of scanning; and a changing unit for changing one or the plurality of count values, which should be obtained by the counter, based on the dotting density specified by the dip switch unit, so that the position of the scanning area with respect to the recording medium is constant even if the frequency of the writing clock signal and/or the scanning speed are changed by the second controller.

    摘要翻译: 图像形成装置包括:激光束扫描单元,用于与写入时钟信号同步地扫描记录介质,使得在记录介质上形成点状图像;计数器,用于与写时钟信号同步地执行计数操作; 确定确定扫描区域的一个计数值或多个计数值,用于基于一个或多个计数值激活或者激活激光束扫描单元的第一控制器,用于指定点密度的dip开关单元 ,用于控制写入时钟信号的频率和/或扫描速度的第二控制器; 以及改变单元,用于基于由dip开关单元指定的点数密度来改变由计数器获得的一个或多个计数值,使得扫描区域相对于记录介质的位置是恒定的 即使第二控制器改变写入时钟信号的频率和/或扫描速度。

    Image forming apparatus
    3.
    发明授权
    Image forming apparatus 失效
    图像形成装置

    公开(公告)号:US5034780A

    公开(公告)日:1991-07-23

    申请号:US412286

    申请日:1989-09-25

    摘要: An image forming apparatus is provided with sensors for detecting existence of sheets of paper at a plurality of positions in transport paths within the image forming apparatus. A circuit part counts a number of sheets of paper remaining within the image forming apparatus when a transport abnormality occurs based on outputs of the sensors. This number of sheets of paper remaining within the image forming apparatus when the transport abnormality occurs is displayed on a display.

    摘要翻译: 图像形成装置设置有用于检测图像形成装置内的传送路径中的多个位置处纸张的存在的传感器。 当基于传感器的输出发生运输异常时,电路部分计数剩余在图像形成装置内的多张纸。 在显示器上显示传送异常发生时在图像形成装置内剩余的纸张张数。

    Sequence controller
    4.
    发明授权
    Sequence controller 失效
    序列控制器

    公开(公告)号:US5083142A

    公开(公告)日:1992-01-21

    申请号:US556742

    申请日:1990-07-23

    申请人: Hiroaki Kotabe

    发明人: Hiroaki Kotabe

    摘要: A sequence controller controls an image forming apparatus which includes a plurality of paper supply paths, a plurality of paper eject paths, an image forming device, and abnormally informing devices for informing an abnormity in the paper supply and eject paths. The sequence controller includes a memory device for storing at least image forming information related to a plurality of pages, the image forming information including image data related to images to be formed and paper path information for selecting one paper supply path and one paper eject path out of the plurality of paper supply and eject paths, and a control device for controlling an image forming operation of the image forming apparatus so as to form an image using the selected paper supply and eject paths which are selected by the paper path information. The control device has a function of automatically changing at least the paper path information related to an arbitrary one of the pages, in response to an abnormity in at least one of the selected paper supply and eject paths informed by the abnormity informing device.

    摘要翻译: 顺序控制器控制包括多个供纸路径,多个纸张排出路径,图像形成装置以及异常通知装置的图像形成装置,用于通知供纸和排出路径的异常。 序列控制器包括用于至少存储与多页有关的图像形成信息的存储装置,图像形成信息包括与要形成的图像有关的图像数据和用于选择一个供纸路径和一个纸张排出路径的纸张路径信息 多个纸张供给和排出路径的控制装置,以及用于控制图像形成装置的图像形成操作以便使用由纸张路径信息选择的所选择的供纸和排出路径形成图像的控制装置。 响应于由异常通知装置通知的所选择的供纸和排出路径中的至少一个的异常,控制装置具有至少自动改变与任意一页相关的纸张路径信息的功能。

    Image system with connection to operational units
    5.
    发明授权
    Image system with connection to operational units 失效
    连接到操作单元的图像系统

    公开(公告)号:US4924320A

    公开(公告)日:1990-05-08

    申请号:US161471

    申请日:1988-02-26

    摘要: A modular type image forming system includes a laser printer main unit and a plurality of optional units, such as both side processing unit, a large quantity paper feeding unit and a mail box unit, each of which is operatively coupled to said main unit through a commonly usable optical fiber cable through a commonly usable connector. Each unit has its own CPU and serial communications between the CPUs of different units may be carried out through the optical cables. The CPU of the main unit may determine the identity of each of the optional units connected thereto through such communications. The main unit also includes an interface circuit through which the main unit is operatively coupled to each of the optional units. The interface circuit includes a port selector which establishes a connection pattern between the main and optional units in accordance with the identity information of each of the optional units connected. When paper is fed into a transportation path, paper ID is assigned to the paper and retained until the paper is discharged. If the paper is removed from the path without passing a predetermined location, the same image is printed again.

    摘要翻译: 模块化图像形成系统包括激光打印机主单元和多个可选单元,诸如两侧处理单元,大量给纸单元和邮箱单元,每个可选单元通过一个或多个单元可操作地耦合到所述主单元 通常可用的光缆通过通用的连接器。 每个单元都有自己的CPU,不同单元的CPU之间的串行通信可以通过光缆进行。 主单元的CPU可以通过这种通信来确定与其连接的每个可选单元的身份。 主单元还包括接口电路,主单元通过该接口电路可操作地耦合到每个可选单元。 接口电路包括端口选择器,其根据所连接的每个可选单元的身份信息建立主单元和可选单元之间的连接模式。 将纸张送入运输路径时,将纸张ID分配给纸张,并保留到纸张排出。 如果在不通过预定位置的情况下将纸张从路径中取出,则再次打印相同的图像。

    Image forming apparatus using a sequencer storing print start commands
    6.
    发明授权
    Image forming apparatus using a sequencer storing print start commands 失效
    使用序列号存储打印开始命令的图像形成设备

    公开(公告)号:US5170265A

    公开(公告)日:1992-12-08

    申请号:US601882

    申请日:1990-10-22

    申请人: Hiroaki Kotabe

    发明人: Hiroaki Kotabe

    摘要: An image forming apparatus includes an image data processor, an image forming part, and a sequence controller for controlling an image forming operation of the image forming part. The image data processor transmits to the sequence controller a print start signal which instructs a start of the image forming operation of the image forming part every time the image data is prepared in the image data processor regardless of whether or not the image forming part is in a ready state in which the image forming part is ready to carry out the image forming operation. The sequence controller includes a memory for storing the print start signal from the image data processor and a part for supplying the stored print start signal and the image data from the image data processor to the image forming means. The memory has a memory capacity for storing a plurality of print start signals.

    摘要翻译: 图像形成装置包括图像数据处理器,图像形成部分和用于控制图像形成部分的图像形成操作的顺序控制器。 图像数据处理器每次在图像数据处理器中准备图像数据时,向序列控制器发送指示开始图像形成部分的图像形成操作的打印开始信号,而不管图像形成部分是否处于 准备状态,其中图像形成部分准备好进行图像形成操作。 序列控制器包括用于存储来自图像数据处理器的打印开始信号的存储器和用于将存储的打印开始信号和图像数据从图像数据处理器提供给图像形成装置的部分。 存储器具有用于存储多个打印开始信号的存储器容量。