Incremental printing of symbolic information – Thermal marking apparatus or processes – Preheating
Patent
1995-12-19
1999-02-23
Wong, Peter S.
Incremental printing of symbolic information
Thermal marking apparatus or processes
Preheating
347252, 347251, 358298, H04N 121
Patent
active
058749810
ABSTRACT:
A laser thermal system that uses a dye donor produces a desired relationship of exposure to density by modifying the input current waveform supplied to the exposure source. The modification is a combination of amplitude modulation and pulse width modulation in an imagewise fashion. The efficiency and the speed of image formation is increased by bringing the dye donor temperature near the threshold of dye transfer using a segment of the total current waveform for a very short duration.
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Haas Daniel D.
Sarraf Sanwal P.
Blish Nelson Adrian
Eastman Kodak Company
Novais David A.
Shin K.
Wong Peter S.
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