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    CHARGE ELECTRODE ARRAY FOR MULTI-NOZZLE INK JET ARRAY
    1.
    发明专利
    CHARGE ELECTRODE ARRAY FOR MULTI-NOZZLE INK JET ARRAY 未知

    公开(公告)号：CA1127702A

    公开(公告)日：1982-07-13

    申请号：CA326060

    申请日：1979-04-19

    Applicant: IBM

    Inventor： HOFFMAN ARTHUR R ,  LAMMERS GERALD B

    IPC: B41J2/085 ,  B41J2/09 ,  G01D15/18

    Abstract: A charge electrode array for à muiti-nozzle ink jet array is fabricated from alternate layers of stainless steel and epoxy resin. The charge electrode array may be formed by positioning stainless steel tabs in previously grooved nonconductive substrate such as ceramic. The grooves are spaced sufficiently apart to allow insulating material to be placed between each stainless steel tab. Alternatively, a stainless steel plate may be bonded to a nonconductive subtract. Then the stainless steel can be sliced so that insulating material can be placed between each stainless steel strip. Epoxy fills the gap between tabs or strips forming an insulating layer, An ink drop charging channel through each tab or strip is formed by drilling through the tips of the steel tab- or strips or by cutting U-shaped channels through the tips- of the tabs or strips

    AIR FLOW TUNNEL FOR REDUCING INK JET DRAG ON ARRAY HEAD
    2.
    发明专利
    AIR FLOW TUNNEL FOR REDUCING INK JET DRAG ON ARRAY HEAD 未知

    公开(公告)号：CA1143781A

    公开(公告)日：1983-03-29

    申请号：CA356121

    申请日：1980-07-14

    Applicant: IBM

    Inventor： LAMMERS GERALD B ,  SMITH GORDON J

    IPC: B41J2/01 ,  B41J2/025 ,  B41J2/075 ,  G06K15/10 ,  G01D15/18

    Abstract: Disclosed is a droplet aspirator suitable for use with a multinozzle ink jet printer. The aspirator includes a housing with a flow channel therein. The flow channel includes an exit section having a substantially planar geometry with a constant crosssectional area extending from a point where ink droplets are ejected into the channel to a point where the droplets exit said channel, an entry section having a relatively large cross-sectional. area and an intermediate section with reduced crosssectional area interconnecting the entry section with the exit section.

    CLOSED LOOP COMPENSATION OF INK JET AERODYNAMICS
    4.
    发明专利
    CLOSED LOOP COMPENSATION OF INK JET AERODYNAMICS 未知

    公开(公告)号：CA1156711A

    公开(公告)日：1983-11-08

    申请号：CA372753

    申请日：1981-03-11

    Applicant: IBM

    Inventor： LAMMERS GERALD B ,  REAM GREGORY L

    IPC: B41J2/075 ,  B41J2/125 ,  B41J3/04 ,  G01D15/18

    Abstract: A uniform velocity and/or time of flight profile across the jet streams of a multinozzle aspirated ink jet printer is maintained by a closed loop servo system. The servo system includes a drop charge sensor which senses the time of flight of charge droplets in the streams and generates a controlled signal. The signal is utilized by a controller means to generate controlled voltages. The voltages are used to adjust the velocity of a motor/blower apparatus which supplies air to the aspirated ink jet printer. B09-79-036

    APPARATUS FOR HANDLING FLEXIBLE SHEET MATERIAL OF DIFFERENT SIZES
    6.
    发明专利
    APPARATUS FOR HANDLING FLEXIBLE SHEET MATERIAL OF DIFFERENT SIZES 未知

    公开(公告)号：CA1092175A

    公开(公告)日：1980-12-23

    申请号：CA309370

    申请日：1978-08-15

    Applicant: IBM

    Inventor： LAMMERS GERALD B ,  RITCHIE ROBERT T

    IPC: G03B27/20 ,  B65H5/12 ,  B65H5/22 ,  B65H29/24 ,  G03G15/00 ,  G03G21/00 ,  G03G21/16 ,  B65H5/08

    Abstract: APPARATUS FOR HANDLING FLEXIBLE SHEET MATERIAL OF DIFFERENT SIZES A low inertia rotary drum supports sheets of paper of different sizes for transport and processing. The drum has a plurality of leading edge ports formed in its surface along the length of the drum. A vacuum is selectively applied to one or more of the ports in accordance with the dimension of the paper in the direction of the length of the drum. The drum has a plurality of sets of trailing edge ports formed in its surface with each of the sets being disposed a predetermined arcuate distance from the set of leading edge ports in accordance with the other dimension of the paper. Each set of trailing edge ports has the ports arranged longitudinally along the drum and parallel to the set of leading edge ports. Only one set of trailing edge ports extends for the same length as the set of the leading edge ports. One of the sets of the trailing edge ports has a vacuum applied thereto with the same number of ports of the trailing edge set having the vacuum applied thereto as the number of the leading edge ports.

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