Method and apparatus for preventing unevenness in printing depth

Details Method and apparatus for preventing unevenness in printing depth Method and apparatus for preventing unevenness in printing depth

1986-07-15

1988-02-02

Goldberg, E. A.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

346 76PH, 400120, G01D 1510, B41J 320

Patent

active

047231327

ABSTRACT:
A thermal printing apparatus includes a thermal printing head with a line of heat generating elements, a data providing circuit which provides source data to be printed, and a compensating data forming circuit. The compensating data is formed from the source data and at least one line of previous source data. The compensating data and source data are provided to the printing head along with respective print enabling signals, and are printed successively.

REFERENCES:
patent: 3710913 (1973-01-01), Brennan, Jr. et al.
patent: 4464669 (1984-08-01), Sekiya et al.
patent: 4567488 (1986-01-01), Moriguchi et al.

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