here is my html.

...
<img src="http://www.koreaherald.co.kr/img/pic/div_hor12_s_pic.gif">
<img src="http://cafefiles.naver.net/20111009_151/jhenney_13181172187445HkgD_jpg/%C1%A6%B8%F1_%BE%F8%C0%BD_jhenney.jpg">
...

The two requests are sent princexml. "http://www.koreaherald.co.kr/img/pic/div_hor12_s_pic.gif" and "http://cafefiles.naver.net/20111009_151/jhenney_13181172187445HkgD_jpg/%C1%A6%B8%F1_%BE%F8%C0%BD_jhenney.jpg"

for a second request for 'http://www.koreaherald.co.kr/img/pic/div_hor12_s_pic.gif' HTTP REFERER will have to.
however, the 'http://cafefiles.naver.net' did not allow for a 'http://www.koreaherald.co.kr/img/pic/div_hor12_s_pic.gif' HTTP REFERER sends 403 response.

In this case, I send the request without HTTP referer is there a way? or can you give princexml fix?

Prince will always send the HTTP referer header to the server, and currently there is no way to stop this. Perhaps you could download the images with curl or wget first, and save them as local files?