Conversion from non-Japanese multibyte client character sets to KANJI1 generates an exception when a character is outside the 7-bit ASCII range of KANJI1.
Conversion of multibyte characters from the Japanese client character sets to KANJI1 is more forgiving than the conversion to UNICODE. This is because earlier Vantage Japanese language releases only range-checked multibyte characters during E2I conversion, allowing undefined code points from the client character sets.