Japan Language Font issue

hi I have developed one embedeed Application in QNX Photon GUI in English.

As, QNX Supports Japan. I got the corresponding Japan Fonts and generated the Language Database for Japan and My GUI is working fine for Japanese Font also.

But here my problem is ,

Sometimes my font display getting very BOLD and sometimes it is normal.

Please help me how to fix the Font Bold issue in Japanese.

In English i have not observed this behaviour. It is working Perfectly is english.