Method and apparatus for utilizing uni-and bidirectional printin

Details Method and apparatus for utilizing uni-and bidirectional printin Method and apparatus for utilizing uni-and bidirectional printin

1997-09-02

1999-09-14

Moore, David K.

395101, 395107, 395111, 395112, 395114, 395117, B41J 1918

Patent

active

059534966

ABSTRACT:
The number of lines in each of at least two printing areas is detected each time a print head conducts main scanning by detecting the presence or absence of dots of dot-pattern data on a line basis, the two printing areas being obtainable separately with a blank area therebetween with lines free from being printed. A decision is made on a printing direction by deciding specialized one-way printing for printing a printing block in the same direction as the direction of an immediately prior printing pass or specialized two-way printing for printing the printing block in a direction in which the movement of the print head becomes minimized in value. The printing block is what is to be printed through the next main scanning according to the relation between the number of lines in each of the printing and blank areas and the number of dot-forming elements of the print head.

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