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    AN ACOUSTIC INK JET PRINTHEAD DESIGN AND METHOD OF OPERATION UTILIZING FLOWING COOLANT AND AN EMISSION FLUID
    11.
    发明专利
    AN ACOUSTIC INK JET PRINTHEAD DESIGN AND METHOD OF OPERATION UTILIZING FLOWING COOLANT AND AN EMISSION FLUID 未知

    公开(公告)号：CA2313712A1

    公开(公告)日：2001-01-23

    申请号：CA2313712

    申请日：2000-07-11

    Applicant: XEROX CORP

    Inventor： HADIMIOGLU BABUR B ,  ROY JOY

    IPC: B05B17/06 ,  B41J2/04 ,  B41J2/14

    Abstract: A droplet emitter with an array of droplet emitting devices constructed such that one flowing liquid is used to create the droplets while a second low acousti c impedance liquid can be used to both make the transfer of acoustic energy to the first liquid more efficient and help maintain a uniform temperature of the droplet emitter array. Both the emission fluid and the low acoustic impedance fluid can be circulated throug h the droplet emitter to allow for excess heat generated by control electronic to be transferred to the flowing. This prevents for instance excess heat build-up within the droplet emitter and allows for higher more accurate droplet emission.

    PRIMING DEVICE FOR LIQUID PARTICLE DISCHARGING APPARATUS
    12.
    发明专利
    PRIMING DEVICE FOR LIQUID PARTICLE DISCHARGING APPARATUS 审中-公开

    公开(公告)号：JP2002210390A

    公开(公告)日：2002-07-30

    申请号：JP2001350622

    申请日：2001-11-15

    Applicant: XEROX CORP

    Inventor： ELROD SCOTT A ,  ROY JOY ,  HADIMIOGLU BABUR B ,  BRUCE RICHARD H ,  NOOLANDI JAAN ,  HORINE DAVID A

    IPC: C12M1/00 ,  B01L3/02 ,  B05B1/04 ,  B05B17/06

    Abstract: PROBLEM TO BE SOLVED: To accurately work a bioliquid particle discharging apparatus from the start of a discharge process as bioliquid is expensive and the liquid particle must be formed at a very exact position. SOLUTION: A priming device 250 is disposed above a nozzle 204 having a structure discharging bioliquid from a discharge liquid reservoir 192. The priming device 250 is equipped with a vacuum nozzle 252 connected to a vacuum unit 254. A tube or sleeve 256 is disposed around the vacuum nozzle 252. The vacuum nozzle 252 is set above the discharge nozzle 204, and then the vacuum nozzle 252 moves downward, which causes slight contact of the tube 256 with the nozzle 204. The discharge liquid reservoir 192 is vacuum-deaerated by the vacuum action.

    13.
    发明专利
    未知

    公开(公告)号：DE60031607T2

    公开(公告)日：2007-02-08

    申请号：DE60031607

    申请日：2000-07-13

    Applicant: XEROX CORP

    Inventor： ROY JOY ,  HADIMIOGLU BABUR ,  ELLSON RICHARD N ,  SPRAGUE ROBERT ,  KRUGER JAMES B ,  LENNON JOHN

    IPC: B41J2/01 ,  B41J11/00

    Abstract: An apparatus 30 for ink-jet printing on a recording medium 34 is provided which includes the steps of jetting aqueous ink drops 40 on the recording medium 34 (paper) in the form of an image. The aqueous ink used is a slow-drying (high-surface tension) ink 20 which does not penetrate the paper/paper fibers 34 for a relatively long time. Prior to penetration of the paper/paper fibers 34, the water in the droplet is quickly evaporated from the ink while still resident on the paper surface. The evaporation process is substantially completed prior to an additional liquid ink 20 being jetted 40 onto the same or adjoining location of the recording medium. The evaporation is rapid enough to prevent the resident ink from substantially migrating/wicking to any adjacent location or into the recording medium. Further drying energy (52, 54) is transferred to the resident ink spots from the same direction as the printheads ensuring less energy requirement.

    LIQUID LEVEL CONTROL IN AN ACOUSTIC DROPLET EMITTER
    15.
    发明专利
    LIQUID LEVEL CONTROL IN AN ACOUSTIC DROPLET EMITTER 未知

    公开(公告)号：CA2281361C

    公开(公告)日：2004-06-15

    申请号：CA2281361

    申请日：1999-09-01

    Applicant: XEROX CORP

    Inventor： ROY JOY

    IPC: B41J2/015 ,  B41J2/14 ,  B05B17/06 ,  B41J2/04

    Abstract: An acoustic droplet emitter which a liquid level control plate has a lip in intimate contact with the free surface of a liquid is constructed. The liqui d level control plate also has an effective aperture diameter at the exit edge of th e plate which is larger than the effective aperture diameter at the lip. This reduces the pressure sensitivity of the free surface of the liquid and allow s for the free surface of the liquid to be effectively pinned at the bottom surfac e of liquid level control plate for wider variations in pressure than using conventional methods.

    18.
    发明专利
    未知

    公开(公告)号：DE60233085D1

    公开(公告)日：2009-09-10

    申请号：DE60233085

    申请日：2002-01-22

    Applicant: XEROX CORP

    Inventor： ROY JOY ,  ELROD SCOTT A ,  SMITH DONALD L ,  ELKIN JERRY ,  FITCH JOHN S

    IPC: B41J2/015 ,  B41J2/04 ,  B41J2/14

    Abstract: This invention relates to a method and apparatus for acoustic ink printing using a bilayer configuration. More particularly, the invention concerns an acoustically actuated droplet emitter (40) which is provided with a continuous, high velocity, laminar flow of cooling liquid (23) in addition to a stagnant pool of liquid (32) to be emitted as droplets.

    20.
    发明专利
    未知

    公开(公告)号：DE60033109T2

    公开(公告)日：2007-05-16

    申请号：DE60033109

    申请日：2000-10-26

    Applicant: XEROX CORP

    Inventor： ELROD SCOTT A ,  ROY JOY ,  STEARNS RICHARD G ,  FITCH JOHN S

    IPC: B41J2/015 ,  B41J2/045 ,  B41J2/14 ,  B41J29/377

    Abstract: A system for improving the uniformity of ink droplets delivered from a plurality of droplet sources on a printhead is described. The system includes a cooling system that compensates for nonuniform heating effects in a printhead which results in nonuniform temperatures. The distribution of the cooling system, and the effectiveness of the cooling system is set to maintain an approximately uniform ink temperature across the printhead.

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