Copying system with a dual trunk serial communication system using an
acknowledge line
    52.
    发明授权
    Copying system with a dual trunk serial communication system using an acknowledge line 失效
    使用确认线复制双中继串行通信系统

    公开(公告)号:US5163137A

    公开(公告)日:1992-11-10

    申请号:US523281

    申请日:1990-05-11

    IPC分类号: G06F13/42

    CPC分类号: G06F13/4269

    摘要: An interface system for a copying system, wherein a frame of transmission data employing a serial communication between a copying machine main body and peripheral devices thereof comprises an address block, a data block and a checksum data block, an optional device corresponding to an address transmitted from the main body transfers data to the main body when the data received coincides with checksum data obtained in the device based on the received data and the transfer of the data is complete when the main body confirms that the transmission address coincides with the transferred data, and when the transferred data is not returned from the optional device or the coincidence is not confirmed, it is determined that a transmission error occurs and data is transmitted from the main body again, whereby reliability of transmission is improved.

    摘要翻译: 一种用于复制系统的接口系统,其中采用复印机主体及其外围设备之间的串行通信的传输数据帧包括地址块,数据块和校验和数据块,对应于发送的地址的可选设备 当主体确认发送地址与传送的数据一致时,当接收到的数据与基于接收到的数据的设备中获得的校验和数据一致时,主体传送数据到主体,并且数据的传送完成, 并且当传送的数据没有从可选设备返回或者一致未被确认时,确定发送错误发生,并且再次从主体发送数据,从而提高了传输的可靠性。

    Digital image forming equipment
    53.
    发明授权
    Digital image forming equipment 失效
    数字图像形成设备

    公开(公告)号:US5107279A

    公开(公告)日:1992-04-21

    申请号:US728036

    申请日:1991-07-05

    IPC分类号: H04N1/04 H04N1/053 H04N1/113

    摘要: A digital image forming equipment in which image is formed by reflecting and scanning laser light emitted from a source of light onto a photo-sensitive body by means of a polygon mirror driven and rotated by a drive motor, so composed that the rotation of the polygon motor can be started when operating the operating portions installed thereon and can be stopped in the elapse of a specified period of time after the image forming operation is terminated, and a digital image forming equipment so composed that the drive motor can be started by detecting existence of an operator when the operator approaches the image forming equipment and can be stopped in the elapse of a specified period of time after the image forming operation is terminated.

    Sheet material for use in cultivating plants
    55.
    发明授权
    Sheet material for use in cultivating plants 失效
    用于栽培植物的片材

    公开(公告)号:US4972627A

    公开(公告)日:1990-11-27

    申请号:US368174

    申请日:1989-06-19

    摘要: A sheet material (4) for use in cultivating plants comprising a body having a coilable flexible, fluid-permeable structure and a plurality of passages (7,9) formed in and extending from one surface (3) to the another (5) of said body. The passages serve to induce root tips to grow and contain fertilizers. The body has at least one surface formed with projections and/or recesses. Preferably, the surface having projections and/or is provided with a ceramic powder discharging infrared rays of wavelength in the range of about 5 to 15 micrometers, a elution-rate controlling growth regulation fertilizer and a small amount of a chosen element. In use, a given length of the sheet material is wrapped around the plant.

    Color image forming apparatus having a plurality of developing units
    57.
    发明授权
    Color image forming apparatus having a plurality of developing units 失效
    具有多个显影单元的彩色图像形成装置

    公开(公告)号:US4860053A

    公开(公告)日:1989-08-22

    申请号:US112268

    申请日:1987-10-20

    IPC分类号: G03G15/01

    CPC分类号: G03G15/0126

    摘要: A multicolor image forming apparatus having a plurality of developing units respectively containing different color developers; comprising a newly selected developing unit switching timing controller for controlling the rotation of the photoreceptor and the timing for switching of the newly selected developing unit, or a previously selected developing unit switching timing controller for controlling the rotation of the photoreceptor and the switching timing of the previously selected developing unit.

    摘要翻译: 一种多色图像形成装置,具有分别包含不同显色剂的多个显影单元; 包括用于控制感光体旋转的新选择的显影单元切换定时控制器和用于切换新选择的显影单元的定时,或者用于控制感光体旋转的先前选择的显影单元切换定时控制器和 以前选择的显影单元。

    Paper discharge control method in an image forming apparatus having an
intermediate tray
    58.
    发明授权
    Paper discharge control method in an image forming apparatus having an intermediate tray 失效
    具有中间托盘的图像形成装置中的排纸控制方法

    公开(公告)号:US4851876A

    公开(公告)日:1989-07-25

    申请号:US161942

    申请日:1988-02-29

    IPC分类号: G03G15/00 G03G15/23

    CPC分类号: G03G15/6538 G03G15/234

    摘要: When forming an image on both sides of set number of sheets of paper, excess paper which remains in an intermediate tray caused by an overlapped feeding of the paper is guided into a bin which has not been in use for the image forming of the above set number of sheet. Further, when some sheets of the paper discharged from the intermediate tray are transferred in an overlapped condition and the paper in the intermediate tray becomes insufficient, the image forming operation corresponding to the insufficient number of sheet of the paper is discontinued, and the sorting operation for the next original starts from a sort bin skipping over some sort bins which should have received the uncopied paper because of overlapped feeding.

    Device for controlling charge area of photoreceptor
    59.
    发明授权
    Device for controlling charge area of photoreceptor 失效
    用于控制感光体电荷面积的装置

    公开(公告)号:US4839695A

    公开(公告)日:1989-06-13

    申请号:US934293

    申请日:1986-11-21

    IPC分类号: G03G15/02

    CPC分类号: G03G15/0275

    摘要: A device for controlling the charge area of a photoreceptor comprising a detector for detecting the length of a sheet of copying paper, another detector for detecting the length of an image projected area of the photoreceptor, a selecting device for selecting the shorter one between the detected length of the copying paper sheet and that of the image projected area by comparing them with each other, and controls for controlling the charging time of the main charger so as to charge the photoreceptor to an area corresponding to a length selected by the selecting device, whereby the charge area of the photoreceptor is properly controlled so as to correspond to an area necessary to be transferred, even when the length of the image projected area on the photoreceptor differs from that of the copying paper sheet.

    摘要翻译: 一种用于控制感光体的电荷区域的装置,包括用于检测复印纸的长度的检测器,用于检测感光体的图像投影面积的长度的另一个检测器,用于在所检测到的感光体之间选择较短的检测器的选择装置 通过将它们相互比较,复印纸张的长度和图像投影区域的长度,以及用于控制主充电器的充电时间的控制,以便将感光体充电到与由选择装置选择的长度对应的区域, 由此,即使当感光体上的图像投影区域的长度与复印纸的图像投影面积的长度不同时,感光体的电荷区域被适当地控制以对应于要转印的区域。