Interleaving thermal printing with discontiguous dye-transfer tr

Details Interleaving thermal printing with discontiguous dye-transfer tr Interleaving thermal printing with discontiguous dye-transfer tr

1995-05-12

1998-09-15

Le, N.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

347211, B41J 247, B41J 2435, B41J 235

Patent

active

058086552

ABSTRACT:
A multiple-source array for use in thermal printing uses source interleaving to avoid overlapping of the dye-transfer tracks upon the donor material in a single pass. This prevents the formation of artifacts in the image because of thermal interaction among either the sources or printing spots. This also permits the thermal array to be oriented predominantly perpendicular to the first-scan direction so that any arcuate shape of the array causes minimal spacing variations of the scan lines and minimizes spacing variations in focus for laser-thermal printing or document source separation for resistive-head thermal printing. Interleaving also allows multiple printheads to be used even when they have different printing characteristics. The array includes independently addressable printing element data channels and a data distributor allowing interleaving to be accomplished in the printhead. The printhead also includes pixel replication circuitry that allows pixel replication in both the fast and slow scan directions.

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