Table Tools not export when press Print or PDF

hi allan

i got this error message "Please use your browser's print function to print this table. Press escape when finished." when i used print button of Table Tools. i tested in FF, Chrome, IE9, and the error message always happened. i have no idea about how to avoid it. would you please do me a favor ?

and another problem is, when i press PDF button, it seems work fine in FF, but not respond in chrome.