I assume that you are trying to use AFP. As for AFP font, you may check out
APF Fonts home page.
If you are using older OS/400, you should buy and install 5769-FN1 to print DBCS characters with AFP. Instead, you may purchase AFP Font Collection. If you are using V5R3 or later, you can use "WroldType" font which comes with i5/OS for free.
Check out
"AFP application example" page for example of IGCCDEFNT. It seems like you want to use multiple DBCS fonts, so it might be better to specify IGCCDEFNT at file, record or field level, rather that system value.
Hope this helps
uzaemon@Japan