Incremental printing of symbolic information – Thermal marking apparatus or processes – Having driving circuitry for recording means
Patent
1992-03-27
1996-09-10
Tran, Huan H.
Incremental printing of symbolic information
Thermal marking apparatus or processes
Having driving circuitry for recording means
B41J 2325
Patent
active
055550100
ABSTRACT:
A thermal recording medium is provided for recording dot thereon by an opaque state thereof when applied with thermal recording energy and for erasing dot therefrom by a transparent state when applied with thermal erasing energy. The thermal energy is supplied from a thermal head to the recording medium as multiple pulses in a one-dot forming period. Heat generated from the thermal head is controlled by an activation pulse computing section to gradually increase the recording energy and erasing energy to be applied to the recording medium to provide a gentle change in the temperature rise of the recording medium, thereby reducing the temperature change per unit time and ensuring finer control, thus accomplishing stable information recording and erasing.
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Itoh Shin-ichi
Ohno Tadayoshi
Yamaguchi Takashi
Kabushiki Kaisha Toshiba
Tran Huan H.
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