26. In an apparatus in accordance with claim 17, wherein said different kinds of character forms comprise two kinds of character forms, and said converting means comprises first converting means for converting said coded multi-digit numerical value information signal into said first kind of character signal for representing said coded multi-digit numerical value information by said first kind of character form of numeral characters 0, 1, 2, 3, . . . 9, and second converting means for converting said first kind of character signal into said second kind of character signal for representing said coded multi-digit numerical value information by said second kind of character form of numeral characters 0, 1, 2, 3, . . . 9.
26. In an apparatus in accordance with claim 17, wherein said different kinds of character forms comprise two kinds of character forms, and said converting means comprises first converting means for converting said coded multi-digit numerical value information signal into said first kind of character signal for representing said coded multi-digit numerical value information by said first kind of character form of numeral characters 0, 1, 2, 3, . . . 9, and second converting means for converting said first kind of character signal into said second kind of character signal for representing said coded multi-digit numerical value information by said second kind of character form of numeral characters 0, 1, 2, 3, . . . 9. 27. In an apparatus in accordance with claim 26, wherein said first converting means comprises third converting means for converting said coded multi-digit numerical value information signal into a first set of individual signals each uniquely identifying the numeral of the respective digit in said coded multi-digit numerical value information, and fourth converting means for converting said first set of individual numeral identifying signals into said first kind of character signal for representing said coded multi-digit numerical value information by said first kind of character form of numeral characters 0, 1, 2, 3, . . . 9, and said second converting means comprises fifth converting means for converting said first kind of character signal for representing said coded multi-digit numerical value information by said first kind of group of numeral characters into a second set of individual signals uniquely identifying the numeral in the respective digit in said coded multi-digit numerical value information, and sixth converting means for converting said second set of individual numeral identifying signals into said second kind of character signal for representing said coded multi-digit numerical value information by said second kind of character form of numeral characters 0, 1, 2, 3, . . . 9.