PRINTER THAT PRINTS WITH INCREASED VISIBILITY, PRINTING METHOD AND STORAGE MEDIUM

摘要

A printable width setter sets a printable width that corresponds to a printable width of a printing medium. A display displays a character string. A specifier specifies at least one first character selected from the character string displayed on the display. A requester requests an emphasis process to the specified at least one first character. An emphasis processor performs a size up process of increasing a size of the specified at least one first character until the size of the specified at least one first character reaches the specified size allowed based on the printable width set by the printable width setter. The emphasis processor performs a size down process of decreasing a size of the at least one second character that has not been specified by the specifier, if the size of the specified at least one first character exceeds the specified size.