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Manually operable sweeping-type printing apparatus

  • US 5,024,541 A
  • Filed: 01/30/1990
  • Issued: 06/18/1991
  • Est. Priority Date: 04/17/1987
  • Status: Expired due to Fees
First Claim
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1. A hand-held electronic printing apparatus, comprising:

  • housing means for containing components of the apparatus and for enabling the appartaus to be manually swept across a recording medium, said housing means including at least two cases arranged to be joined to one another;

    a chassis including a single rigid base mounted in a mounting section of one of said cases of said housing means;

    roller means fixed directly to said single rigid base for rotational movement and being adapted to protrude from said housing means to contact said recording medium, said roller means rotating when said housing means is swept across said recording medium;

    an ink-ribbon detachably mounted directly to said single rigid base and being arrange to contract said recording medium;

    ink-ribbon winding means fixed directly to said single rigid base for winding said ink-ribbon;

    encoder means including an encoder disk fixed directly to said single rigid base, for generating a signal every time said housing means is swept over a predetermined distance with respect to said recording medium;

    rotation-transmitting means fixed directly to said single rigid base, for transmitting rotation of said roller means to said ink-ribbon winding means and to said encoder disk; and

    printing means provided in said housing means and for contacting said ink-ribbon, for transmitting ink of said ink-ribbon onto said recording medium;

    wherein critical rotating components of the apparatus are fixed directly to said single rigid base for incorporation together within the housing means data storage means;

    key input means mounted on said housing means for inputting data to said data storage means; and

    ,display means mounted on said housing means for displaying said data stored in said data storage means.

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