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23 records (took 0.017 seconds)

    3.
    发明专利
    未知

    公开(公告)号：CH598011A5

    公开(公告)日：1978-04-28

    申请号：CH1445676

    申请日：1976-11-17

    Applicant: IBM

    Inventor： JENSEN DONALD FREDERICK ,  LEE HO CHONG ,  TAMULIS JOHN CARL

    IPC: B41J2/075 ,  B41J2/10 ,  B41J3/04 ,  B41J3/12

    Abstract: A line printer has a print head with plural nozzles arranged in a single row generally transverse to the direction of relative motion of the print head and a print medium. The nozzles are spaced plural dot positions from each other corresponding to a plural dot segment of a single dot matrix character stroke. When the row of nozzles is slanted relative to the direction of motion, drops from the nozzles are used to print stroke segments in plural character strokes simultaneously.

    LIQUID DROPLET PRINTING
    5.
    发明专利
    LIQUID DROPLET PRINTING 未知

    公开(公告)号：AU8067875A

    公开(公告)日：1976-11-04

    申请号：AU8067875

    申请日：1975-04-30

    Applicant: IBM

    Inventor： CHEN WINSTON HSONG ,  LEE HO CHONG

    IPC: B41J2/205 ,  B41J2/21 ,  G06K15/10 ,  H04N1/23 ,  G03G17/00

    Abstract: Method of recording with a stream of marking fluid drops in which a predetermined plurality of successively formed drops in a stream each have the same electrical charge induced therein so that, when subsequently subjected to an electrostatic field, all drops of one commonly charged plurality will impact a record member at approximately the same spot. Drop charges are induced therein by asynchronously applied charging signal levels, each having a duration which is a function of the drop formation frequency and equal to at least two drop periods.

    6.
    发明专利
    未知

    公开(公告)号：FR2294848A1

    公开(公告)日：1976-07-16

    申请号：FR7533289

    申请日：1975-10-24

    Applicant: IBM

    Inventor： HELINSKI EDWARD F ,  LEE HO CHONG ,  ZABLE JACK L

    IPC: B41J2/075 ,  B41J2/12 ,  G06K15/10 ,  H04N1/034 ,  B41J3/04 ,  B41J27/18 ,  G05D19/00

    Abstract: A continuous jet stream of a ferrofluid ink is broken into individual drops by an asymmetrical perturbation force applied to the stream. The ink, as it exits from an orifice under pressure, is excited by an electromagnetic transducer energized with an asymmetrical excitation signal having a fundamental and higher harmonics. An asymmetrical excitation signal, such as a sawtooth, having a substantial second and/or third harmonics content which produce an excitation signal with different rise and fall times can form a stream of drops free of satellites. Asymmetry of magnetic field forces can be produced with single stage or multi-stage transducers located at spaced positions along the stream. Asymmetry can also be produced using an electromagnetic transducer having a non-uniform gap.

    7.
    发明专利
    未知

    公开(公告)号：FI751816A

    公开(公告)日：1975-12-28

    申请号：FI751816

    申请日：1975-06-18

    Applicant: IBM

    Inventor： CHEN WINSTON HSONG ,  LEE HO CHONG

    IPC: B41J2/205 ,  B41J2/21 ,  G06K15/10 ,  H04N1/23 ,  B05B

    Abstract: Method of recording with a stream of marking fluid drops in which a predetermined plurality of successively formed drops in a stream each have the same electrical charge induced therein so that, when subsequently subjected to an electrostatic field, all drops of one commonly charged plurality will impact a record member at approximately the same spot. Drop charges are induced therein by asynchronously applied charging signal levels, each having a duration which is a function of the drop formation frequency and equal to at least two drop periods.

    9.
    发明专利
    未知

    公开(公告)号：FI58597C

    公开(公告)日：1981-03-10

    申请号：FI751816

    申请日：1975-06-18

    Applicant: IBM

    Inventor： CHEN WINSTON HSONG ,  LEE HO CHONG

    IPC: B41J2/205 ,  B41J2/21 ,  G06K15/10 ,  H04N1/23 ,  B05B5/00 ,  B41J3/04 ,  G01D15/18 ,  G06K15/00

    Abstract: Method of recording with a stream of marking fluid drops in which a predetermined plurality of successively formed drops in a stream each have the same electrical charge induced therein so that, when subsequently subjected to an electrostatic field, all drops of one commonly charged plurality will impact a record member at approximately the same spot. Drop charges are induced therein by asynchronously applied charging signal levels, each having a duration which is a function of the drop formation frequency and equal to at least two drop periods.

    10.
    发明专利
    未知

    公开(公告)号：FI58597B

    公开(公告)日：1980-11-28

    申请号：FI751816

    申请日：1975-06-18

    Applicant: IBM

    Inventor： CHEN WINSTON HSONG ,  LEE HO CHONG

    IPC: B41J2/205 ,  B41J2/21 ,  G06K15/10 ,  H04N1/23 ,  B05B5/00 ,  B41J3/04 ,  G01D15/18 ,  G06K15/00

    Abstract: Method of recording with a stream of marking fluid drops in which a predetermined plurality of successively formed drops in a stream each have the same electrical charge induced therein so that, when subsequently subjected to an electrostatic field, all drops of one commonly charged plurality will impact a record member at approximately the same spot. Drop charges are induced therein by asynchronously applied charging signal levels, each having a duration which is a function of the drop formation frequency and equal to at least two drop periods.

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