Recorders – Thermal recording
Patent
1991-08-12
1993-03-23
Fuller, Benjamin R.
Recorders
Thermal recording
B41J 2325
Patent
active
051968649
ABSTRACT:
A multiple printhead thermal printer has a receiver and a print drum supporting the receiver as dye is thermally transferred to the receiver during printing. Electronic circuitry controls registration of the receiver during printing so that the color separations are aligned to produce a clear, crisp image. This registration is achieved by introducing line delays to receive the image data prior to the image data reaching the modulators which process the image data for the second and third printheads. The position of the image produced by a thermal printhead along the print direction is determined by when data is sent to the printhead. Delaying the printing of a line by some fraction of a line time proportionally repositions the print line by a fraction of a line.
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Eastman Kodak Company
Fuller Benjamin R.
Le N.
Owens Raymond L.
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