Method of activating individually energisable elements in a ther

Details Method of activating individually energisable elements in a ther Method of activating individually energisable elements in a ther

1996-12-27

1998-11-10

Burr, Edgar

Typewriting machines

Typing by other than type-face or type-die

Thermal

40012009, 347183, B41J 236

Patent

active

058333762

ABSTRACT:
A method of activating a binary controllable element of a thermal head in correspondence with an N-bit data value representing a density value D by converting a digital signal representative of said N-bit value into a binary signal that, when applied to said transducer under control of a strobe signal, causes said physical value D to be generated. The binary signal is composed so that it is active during a period t.sub.on, wherein t.sub.on is equal to the sum of a number of time steps being selected from at least two different predefined time steps.

REFERENCES:
patent: 4335968 (1982-06-01), Regnault
patent: 4983054 (1991-01-01), Nishiura
patent: 5533816 (1996-07-01), Ikeda

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