中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

7 records (took 0.016 seconds)

    INK RIBBON DRIVE, E.G. IN A HIGH-SPEED PRINTER
    4.
    发明专利
    INK RIBBON DRIVE, E.G. IN A HIGH-SPEED PRINTER 未知

    公开(公告)号：DE2966210D1

    公开(公告)日：1983-10-27

    申请号：DE2966210

    申请日：1979-12-04

    Applicant: IBM

    Inventor： BEMIS JOHN DANIEL ,  GOFF JR WILLIE

    IPC: B41J33/16 ,  B41J33/24 ,  B41J33/52 ,  B41J33/22 ,  B65H17/14

    Abstract: In a high speed printer, apparatus is provided for rotatably driving a ribbon take-up reel and a ribbon supply reel, each reel being adapted to support a portion of an inventory of ribbon running from the supply reel to the take-up reel at a constant speed differential between reels. This apparatus comprises a first inelastic drive belt for peripherally non-slip driving the ribbon portion on the take-up reel and a second inelastic drive belt unattached to the first drive belt for peripherally non-slip driving the ribbon portion on the supply reel. Means are provided for driving the first belt at a constant selected speed and drive coupling means provided which are non-slip driven by the first belt and are for non-slip driving the second belt at a constant speed which is slower than the first belt. In this manner, the web or ribbon between the supply reel and the take-up reel is maintained under a constant uniform strain level.

    METHOD OF MANUFACTURE MULTI-WIRE NONIMPACT PRINTHEADS
    5.
    发明专利
    METHOD OF MANUFACTURE MULTI-WIRE NONIMPACT PRINTHEADS 未知

    公开(公告)号：DE3168675D1

    公开(公告)日：1985-03-14

    申请号：DE3168675

    申请日：1981-10-27

    Applicant: IBM

    Inventor： GOFF JR WILLIE ,  JENKINS WILLIAM MELCHIOR

    IPC: G03G15/05 ,  B41J2/395 ,  B41J2/425 ,  H04N1/032 ,  B41J3/18

    Abstract: A method of making a plurality of multi-wire nonimpact printheads provides precise inter-wire spacing accuracy and repeatability of manufacturing steps to enable mass production.A plurality of slats (13) ate molded, one alongside another on a cylindrical support shell (11), parallel to the shell axis. A helical thread is engraved on the slats along the axial length of the support shell. A continuous wire (16) is wrapped in the thread and the portions of the wire on the slats are encapsulated. The support shell and wrapped wire is cut between adjacent slats to obtain a plurality of printhead blanks. Each blank is machined to smooth the exposed print wires. The resultant printheads may be used in page-width nonimpact printers.

    PAPERGUIDING SCREEN WITH INTEGRAL RIBBON GUIDE FOR AN IMPACT PRINTER
    6.
    发明专利
    PAPERGUIDING SCREEN WITH INTEGRAL RIBBON GUIDE FOR AN IMPACT PRINTER 未知

    公开(公告)号：DE2966670D1

    公开(公告)日：1984-03-22

    申请号：DE2966670

    申请日：1979-09-28

    Applicant: IBM

    Inventor： BEMIS JOHN DANIEL ,  GOFF JR WILLIE

    IPC: B41J11/62 ,  B41J13/10 ,  B41J13/18 ,  B41J35/00 ,  B41J35/06 ,  B41J35/36 ,  B41J35/04 ,  B41J33/518

    Abstract: In an impact printer with a conventional combination of platen and cardholder wherein the cardholder has an inner surface with a curvature matching that of the platen and is mounted adjacent to but spaced from the platen so that a sheet of printing medium may be moved between the cardholder and platen and wherein conventional impact printing is carried out by impact means acting upon the sheet through an opening in the cardholder, an improved cardholder structure is provided wherein the cardholder comprises integral ribbon guide means for guiding the printer ribbon in a path along the outer surface of the cardholder across the opening whereby the impact means may selectively drive the ribbon through the opening to print upon the sheet. In accordance with another aspect of the present invention, the cardholder further comprises integral end of ribbon sensing means mounted in a fixed position along said ribbon path.

Patent Agency Ranking