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    RIBBON CARTRIDGE WITH INK ROLL RE-INKING SYSTEM
    12.
    发明专利
    RIBBON CARTRIDGE WITH INK ROLL RE-INKING SYSTEM 未知

    公开(公告)号：CA2021824A1

    公开(公告)日：1991-03-16

    申请号：CA2021824

    申请日：1990-07-24

    Applicant: IBM

    Inventor： PATERRA JEFFREY H ,  REX DONALD K

    IPC: B41J31/14 ,  B41J31/16 ,  B41J32/02 ,  B41J35/28

    Abstract: A ribbon cartridge (2) for an endless ribbon (12) used in high speed printers, with increased reliability due to fewer parts, is constructed from a molded casing which is rectangular in shape into which are formed a post on which a cylindrical porous fluid reservoir (16) is mounted, a ribbon protector (40) which isolates the ink reservoir from the ribbon (12) in the stuffer box portion of the cartridge, and a forked bracket (46) for mounting a shaft (22) on which gears are mounted. A combination gear for driving a ribbon (12) into the stuffer box and for re-inking the ribbon is mounted on a post and then rotatably mounted on the bracket formed into the housing and is inked by contact with the ink reservoir. An idler gear (20) is rotatably mounted on a bracket (48) which is pivoted from a socket (50) molded into the socket wall and is spring biased into contact with the drive and transfer gear (18), which is turned by its extended shaft advance and ink the ribbon. As a result a simplified re-inking arrangement is achieved with the minimum of components. Also, by re-inking a central drive and transfer gear (18), only the print track of a ribbon is reinked thereby extending the re-inking life by conserving ink.

    WIRE PRINTER
    15.
    发明专利
    WIRE PRINTER 未知

    公开(公告)号：CA560373A

    公开(公告)日：1958-07-15

    申请号：CA560373D

    Applicant: IBM

    Inventor： REX DONALD K

    IPC: B41J2/24 ,  B41J29/393 ,  G06F11/10

    Abstract: 812,159. Selective printing. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 20, 1955 [Dec. 30, 1954], No. 36438/55. Class 100(4) In a wire printer of the kind wherein the characters to be printed are formed by the differential setting of wire printing elements 12, Fig. 1, selected from a group by a code rod 10 settable to the character to be printed and to which are imparted a printing impact, a further check wire 14, Figs. 1, 2 additional to the printing elements is provided, also displaceable by the code rod in each of its various positions by high and low portions 20, 22 respectively according to whether or not the selected character falls into one or other of two predetermined groups. Any change from the odd or even standard adopted may be used as an indication of error. The invention is described as embodied in a printer of the type shown in Specification 729,064 in which a code rod 10, disposable to any of forty-seven positions, plus a home position, may print, under control of magnets A, B, C, D, E, F, Fig. 2, fortyseven different characters and a blank. The magnets are energized by any of six distinct electrical impulses or bits according to the code shown in Fig. 3 wherein each character is represented by a different combination of binary zeros and units. The number of impulses designating the various characters may range from one to five, and the number of control bits for the various characters are either odd or even, and a redundant bit is added when the number of bits which designate a particular character is odd. This wire 14 is used or not to control the operation of a set of transfer contacts 44 (44a, 44b, 44c) according as to whether or not the wire is displaced. If wire 14 is moved, lever 24 is moved against action of spring 28, from its normal position in engagement with stop 30, bail 40 is moved away from normal position of lever 36, while code rod 10 is still in engagement with the point wires which it has pre-set, and allows lever 36 to turn if it is not held by hook 32 on lever 24 and move a strap 44a from contact element 44b to transfer contact element 44c and to create an impulse to indicate that a redundant bit should have been present with the control impulses imparted to code rod control magnets A - F, when the bail 40 restores to permit restoration of code rod 10. An emitter 50, Fig. 2, may be used to distribute the control impulses or bits originating from a source S which may be a magnetic tape, paper tape, punched card &c. The device may be used to check the accuracy of the printer and to detect the omission or improper addition of an impulse to the control impulses, due e.g. to the failure of a print magnet, and is located as closely as possible to the platen or final machine operation.

    DATA MATRIX PRINT HEAD
    18.
    发明专利
    DATA MATRIX PRINT HEAD 未知

    公开(公告)号：CA1153244A

    公开(公告)日：1983-09-06

    申请号：CA352794

    申请日：1980-05-27

    Applicant: IBM

    Inventor： CHOBERKA JOHN M ,  REX DONALD K

    IPC: B41J2/24 ,  B41J2/51 ,  B41J25/304 ,  B41J3/12

    Abstract: There is disclosed herein a dot matrix tilting print head assembly in which the print head is rotatably mounted in frame means. Solenoid means are provided for rotating the print head a controlled distance so that printing occurs between previously printed dots. Means are provided for controlling the distance to be one half of the center-to-center distance between printed dots. This entails maintaining very low tolerances for the mechanically moving parts. In addition, there is provided means for removing the print head alone from the frame means.

    PRINT RIBBON PROTECTION
    19.
    发明专利
    PRINT RIBBON PROTECTION 未知

    公开(公告)号：CA1182064A

    公开(公告)日：1985-02-05

    申请号：CA405398

    申请日：1982-06-17

    Applicant: IBM

    Inventor： REX DONALD K

    IPC: B41J33/10 ,  B41J35/36

    Abstract: PRINT RIBBON PROTECTION Background of the Invention Field of the Invention This invention relates to ribbons for printers and relates more particularly to a system to give such ribbons improved life and print quality. Description of the Prior Art In some printing systems, it is desirable to employ an endless ribbon and a stuffer box to provide a low cost ribbon system. The stuffer box is used to store the excess ribbon in the ribbon loop, this excess being fed or "stuffed" into the box. There are three major problems which may arise from the use of such an endless ribbon. First, when the nylon ribbon is spliced, the narrow splice area of the ribbon does not readily accept ink so that this area is unsuitable for printing. Secondly, the ribbon splice area is less able to withstand print forces than the rest of the ribbon, thereby resulting in a high likelihood of ribbon failure at the splice area if printing is attempted on this area. Thirdly, if the ribbon jams in the stuffing box area, or elsewhere in the ribbon path, the ribbon ceases to be fed past the print mechanism and will be destroyed by the action of the print mechanism. Therefore, it is desirable in such printing systems to provide indications of the approach of the ribbon splice to the print station and of lack of ribbon motion indicating a ribbon jam. Prior Art U.S. Patent No. 3,949,856, issued April, 1976, to Ulber et al shows the use of a roller mechanism to detect medium movement to indicate medium jams.

    DATA MATRIX PRINT HEAD
    20.
    发明专利
    DATA MATRIX PRINT HEAD 未知

    公开(公告)号：CA1126574A

    公开(公告)日：1982-06-29

    申请号：CA352795

    申请日：1980-05-27

    Applicant: IBM

    Inventor： CHOBERKA JOHN M ,  REX DONALD K

    IPC: B41J2/24 ,  B41J2/22 ,  B41J2/51 ,  B41J25/304 ,  B41J3/12

    Abstract: There is disclosed herein a dot matrix tilting print head assembly in which the print head is rotatably mounted in frame means. Solenoid means are provided for rotating the print head a controlled distance so that printing occurs between previously printed dots. Means are provided for controlling the distance to be one half of the center-to-center distance between printed dots. This entails maintaining very low tolerances for the mechanically moving parts. In addition, there is provided means for removing the print head alone from the frame means. BC9-79-018

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