Thermal recording system and method

Details Thermal recording system and method Thermal recording system and method

1984-11-29

1986-06-24

Evans, A.

Recorders

Thermal recording

400120, 346 76L, G01D 1510

Patent

active

045969930

ABSTRACT:
A closed loop thermal recording system and method are provided for recording an image represented by pixel areas of varied density on a thermally sensitive recording medium. The system receives electronic image information defining a desired density for each pixel area and applies thermal energy to selected pixel areas to record in each a dot having an initial size that is smaller than necessary to achieve its desired density. The density levels provided by the initial dots are measured and compared to desired density. Based on these comparisons, additional thermal energy is applied to progressively to increase dot size until a predetermined density comparison value is achieved for each selected pixel area.

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patent: 4355318 (1982-10-01), Miyamchi
patent: 4407003 (1983-09-01), Fukui
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patent: 4442342 (1984-04-01), Yomeda
patent: 4504837 (1985-03-01), Toyoda et al.
IBM Tech. Disc. Bulletin "Print Current Adjustment for Electrothermal Printers" Long et al. vol. 25, No. 4, Sep. 1982.

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