Thermal head

Details Thermal head Thermal head

1990-04-12

1993-01-19

Fuller, Benjamin R.

Recorders

Thermal recording

B41J 2335, H04N 1032

Patent

active

051810476

ABSTRACT:
A first lead electrode and a second lead electrode are disposed in such a manner as to be offset from each other in a horizontal scanning direction with a heating resistor interposed therebetween, and the width of a major portion of the heating resistor in the horizontal scanning direction is formed to be larger than the widths of the two lead electrodes in the same direction. It can be considered that peripheral portions of the heating resistor where their calorific value is essentially small are partially cut off together with parts of the lead electrodes at opposite ends thereof within the range that does not adversely affect the modulation of a heating area. Heat efficiency can be improved by supressing thermal diffusions in the peripheral portions where the calorific value is small, thereby contributing to recording of a clearer half-tone image.

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