Method and apparatus for transferring information to a printhead

Method and apparatus for transferring information to a printhead

  • CN 1,660,582 B
  • Filed: 10/30/2001
  • Issued: 09/08/2010
  • Est. Priority Date: 10/30/2000
  • Status: Active Grant
First Claim
Patent Images

1. one kind in response to starting (E1, E2) and drive current (P) signal and the ink jet-print head of ink-jet, ink jet-print head comprises many group ink droplet generators, and each group ink droplet generator comprises many to the ink droplet generator, every pair comprises the first ink droplet generator and the second ink droplet generator, wherein:

  • The described first ink droplet generator comprises;

    The energy accumulating device (48) that is used for storage power;

    Second switch device (50) is used in response to first enabling signal (E1) in described energy accumulating device storage power;

    The 3rd switching device (52) is used for releasing energy at described energy accumulating device in response to second enabling signal (E2);

    AndInk droplet generation device (44,48) is used for spraying ink from ink jet-print head when excitation,The described second ink droplet generator comprises;

    The energy accumulating device (48 '"'"') that is used for storage power;

    Second switch device (50 '"'"') is used in response to second enabling signal (E2) in described energy accumulating device storage power;

    The 3rd switching device (52 '"'"') is used for releasing energy at described energy accumulating device in response to first enabling signal (E1);

    AndInk droplet generation device (44 '"'"', 48 '"'"') is used for spraying ink from ink jet-print head when excitation;

    Each ink droplet generation device (44,44 '"'"';

    48,48 '"'"') encourage each ink droplet generation device (44,44 '"'"' by effective driving current signal (P) and the energy that is stored in the described energy storing device (48,48 '"'"') greater than the threshold energy level;

    48,48 '"'"') comprise a stratie (44,44 '"'"') and a FET transistor (48,48 '"'"'), described FET (48,48 '"'"') transistor has drain electrode end and the source terminal that is connected in series with described stratie;

    Described first enabling signal (E1) differently is connected with the described second ink droplet generator with the described first ink droplet generator respectively with second enabling signal (E2);

    Each energy accumulating device is the electric capacity of the transistorized grid of described FET to source electrode;

    And,Said printhead also comprises and is used to receive described first and second enabling signals (E1, pair of control end E2).

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