Originally Posted by Skyflyer
In the new firmware that was released 2 days ago (v1.50) I also think that there is a function to add new .ttf fonts. But I haven't played with new fonts yet so I can not comment on it.
Just copy the .ttf file to the font directory of iriver story.
You can change the default font in "menu → settings → font".
The user fonts do not apply to .pdf / .epub file.