There are defined a reference size and at least one predetermined enlarged
size each corresponding to an integral multiple of the reference size, as
alternatives to be selectively set to a print size of a printing area of a
printing object on which is to be printed part or all of character groups
including at least one character. One of the reference size and the at
least one predetermined enlarged size is set to the print size. At least
one predetermined portion different from one another of the character
groups respectively is allocated to at least one divisional printing area
formed by dividing the printing area by the reference size. There is
formed data of at least one print image corresponding to the at least one
predetermined portion of the character groups allocated respectively to
the at least one divisional printing area. The at least one print image is
printed respectively on the at least one divisional printing area of the
printing object.
