PURPOSE: To perform processing for prevention of a dot gain of character data from occurring.
CONSTITUTION: A depth of cut is determined from a size of a character pattern and resolution of a printer by a cut depth determining means 1. A cutting into part of the character pattern is searched for by a cutting into part searching means 2. A cutting into direction to the searched cutting into part is determined by a cutting direction-determining means 3. Determined depth of cut is carried out in the cutting into direction determined in the searched cutting part by a cutting means 4.