Incremental printing of symbolic information – Thermal marking apparatus or processes – Multicolor
Patent
1996-04-17
1998-03-17
Tran, Huan H.
Incremental printing of symbolic information
Thermal marking apparatus or processes
Multicolor
347175, B41J 232
Patent
active
057292744
ABSTRACT:
A color thermal recording medium has three thermosensitive coloring layers for cyan, magenta and yellow formed in this order from the base material side. The upper layer has a higher thermal recording sensitivity. The color thermal recording medium is thermally recorded by three thermal heads by a one-pass method. At least two of the three thermal heads are driven in time-sharing fashion. Besides, drive voltage for the thermal heads for recording uppermost and next uppermost thermosensitive coloring layers are set lower than that applied for the thermal head for the innermost thermosensitive coloring layer. Instead of or in addition to adjusting the drive voltages, the maximum duration of drive times may be changed for each color.
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Fuji Photo Film Co. , Ltd.
Tran Huan H.
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