Thermal printing apparatus for forming a continuous tone dye ima

Details Thermal printing apparatus for forming a continuous tone dye ima Thermal printing apparatus for forming a continuous tone dye ima

1989-05-25

1990-01-09

Scott, J. R.

Recorders

Thermal recording

G01D 1510

Patent

active

048931330

ABSTRACT:
Thermal printing apparatus for forming a continuous tone dye image composed of dye image pixels each image pixel having a different possible dye density level. The thermal printing apparatus comprises a thermal print head including N heating elements, each heating element being addressed during a consecutive heating cycle. No more than L consecutive heating elements are addressed during a given heating cycle and at least one different heating element is addressed during the next heating cycle wherein N is at least equal to 2 times L and L and N are integers.

REFERENCES:
patent: 4621271 (1986-11-01), Brownstein
patent: 4622560 (1986-11-01), Withoos
patent: 4691211 (1987-09-01), Brownstein
patent: 4745413 (1988-05-01), Brownstein et al.

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