中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

18 records (took 0.019 seconds)

    Electrographic recording method and apparatus
    1.
    发明授权
    Electrographic recording method and apparatus 失效
    电子记录方法和装置

    公开(公告)号：US3673600A

    公开(公告)日：1972-06-27

    申请号：US3673600D

    申请日：1969-09-30

    Applicant: XEROX CORP

    Inventor： DAMOUTH DAVID E

    IPC: G03G15/24 ,  G03G15/34 ,  G06K15/14 ,  G03G15/08 ,  H04N1/30

    CPC classification number: G03G15/24 ,  G03G15/348 ,  G06K15/14

    Abstract: Electrographic recording apparatus in which the latent electrostatic charge patterns recorded on a dielectric recording medium are rendered visible substantially coextensive with the deposition of the charge patterns on the recording medium. The recording medium is transported in a generally vertical direction at the charging zone. The array of charging electrodes are disposed from the record medium at the charging zone at a negative inclination relative to horizontal to form a ramp comprising a portion of the developer system. A second ramp is disposed from the recording medium at the charging zone at a positive inclination relative to horizontal, comprising another portion of the developer system. The positively inclined ramp is further situated in a manner such that developer material will be transported down the ramp in substantially uniform quantities to contact the recording medium. As the developer material contacts the recording medium, toner from the developer material will be attracted to the latent electrostatic charge patterns to render the charge patterns visible. Unused portions of the developer material after contacting the record medium are then transported down the ramp formed by the electrode array to a developer reservoir. By thus utilizing the electrode array as a portion of the overall developer path the development zone may be substantially coextensive with the charging zone thereby permitting rapid viewing of the recorded information.

    Abstract translation: 记录在电介质记录介质上的静电电荷图案与电荷图案沉积在记录介质上基本上共同延伸的电记录装置。 记录介质在充电区域沿大致垂直的方向输送。 充电电极阵列从充电区域的记录介质以相对于水平的负倾斜度布置，以形成包括显影剂系统的一部分的斜面。 第二斜坡从充电区域的记录介质以相对于水平面的正倾斜度布置，包括显影剂系统的另一部分。 正倾斜斜面进一步设置成使得显影剂材料将以基本上均匀的量向下沿着斜面输送以接触记录介质。 当显影剂材料接触记录介质时，来自显影剂材料的调色剂将被吸引到静电荷电荷图案以使电荷图案可见。 接触记录介质后显影剂材料的未使用部分然后沿着由电极阵列形成的斜坡传送到显影剂储存器。 通过这样利用电极阵列作为整个显影剂路径的一部分，显影区域可以与充电区基本上共同延伸，从而允许快速观看所记录的信息。

    Flying spot scanner
    2.
    发明授权
    Flying spot scanner 失效
    飞行扫描仪

    公开(公告)号：US3867571A

    公开(公告)日：1975-02-18

    申请号：US30986172

    申请日：1972-11-27

    Applicant: XEROX CORP

    Inventor： STARKWEATHER GARY K ,  DAMOUTH DAVID E

    IPC: B41J2/47 ,  G06K15/12 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  H04N3/08 ,  H04N1/02

    CPC classification number: H04N1/053 ,  B41J2/471 ,  G06K15/1219 ,  H04N1/1135 ,  H04N1/12 ,  H04N3/08 ,  H04N2201/02443 ,  H04N2201/0471 ,  H04N2201/04744 ,  H04N2201/04768 ,  H04N2201/04798

    Abstract: A flying spot scanning system is provided by utilizing reflected light from a multifaceted rotating polygon which is then directed to the scanned medium. A light source illuminates at least one of the facets of the polygon during each scanning cycle to provide the spot scan. In each scanning cycle, information is transmitted to scanned medium by modulating the light from the light source in accordance with a video signal. To assure a uniform spot size at the scanned medium, an optical convolution of elements is selected in combination with the light source such that an adequate depth of focus at the medium is assured. An imaging lens is provided in series with a lens, which expands an original light beam, to converge the expanded beam to illuminate the selected facet or contiguous facets that are to control the movement of a spot throughout a scan angle. In the preferred embodiment, the rotation of the polygon is synchronized in phased relation to the scan rate used to obtain the video signal.

    Abstract translation: 通过利用来自多面旋转多边形的反射光提供飞点扫描系统，然后被引导到扫描介质。 在每个扫描周期期间，光源照亮多边形的至少一个面以提供点扫描。 在每个扫描周期中，根据视频信号调制来自光源的光，将信息传送到扫描介质。 为了确保扫描介质上的均匀斑点尺寸，与光源组合选择元件的光学卷积，使得确保介质处的适当的焦深。

    7.
    发明专利
    未知

    公开(公告)号：DE69504927T2

    公开(公告)日：1999-04-08

    申请号：DE69504927

    申请日：1995-08-03

    Applicant: XEROX CORP

    Inventor： PETOCCHI ERMANNO C ,  ACQUAVIVA THOMAS ,  ROBINSON NORMAN D ,  DAMOUTH DAVID E

    IPC: B41J11/42 ,  B41J13/00 ,  B65H1/00 ,  B65H7/02 ,  B65H7/14 ,  G01D5/30 ,  G03G15/00 ,  G03G21/00 ,  B65H1/04

    Abstract: A sheet guide position sensor which determines the dimensions of a stack of sheets (54) in a tray (100) having adjustable sheet guides (102). An optical sensor (110) is arranged so that movement of a sheet guide (102) causes a variably graduated scale (104) to be moved past the sensor (110). The sensor (110) may either be a transmissive or reflective type analog sensor in which the strength of the signal generated by the sensor is converted into a position of the sheet guides. A recalibration process is used to prevent contamination of the scale from causing the size determinations by the sensor to be inaccurate. In one embodiment, a digital sensor in cooperation with a digital bar code (Fig.5) or other digital scale can be utilized to determine the variable sheet size, since the digital sensor is insensitive to contamination by dirt or paper particles, etc. In another embodiment, a wiper member (140; Fig.4) is used to clean the variably graduated scales (104).

    TWO SECTION CHARGING ELECTRODES FOR BINARY INK DROP PRINTERS
    10.
    发明专利
    TWO SECTION CHARGING ELECTRODES FOR BINARY INK DROP PRINTERS 未知

    公开(公告)号：CA1168294A

    公开(公告)日：1984-05-29

    申请号：CA384321

    申请日：1981-08-20

    Applicant: XEROX CORP

    Inventor： DAMOUTH DAVID E

    IPC: B41J2/075 ,  B41J2/085 ,  B41J3/04 ,  G01D15/18

    Abstract: A binary ink drop printer is disclosed of the type wherein continuously generated drops are electrostatically deflected to intersect either a target or a gutter. The printer includes M x N number of nozzles for generating drops and a like number of charging electrodes for charging drops to either a print level for flight to the target or a gutter level for flight to a gutter. A M x Nmatrix is used to couple voltages to the charging electrodes and thereby greatly reduce the number of electrical connections to a substrate carrying the M x N number of charging electrodes. Each charging electrode includes two sections. Application of a print voltage to both sections causes the generation of a print drop that goes to the target and application of a gutter voltage to either or both sections of the charging electrode causes the generation of a gutter drop that is collected in the gutter. One two section electrode is made using at least two partial cylinders. Another two section electrode is made by coupling a single electrode to a voltage divider network.

Patent Agency Ranking