I try to print some unicode character. The browser display it well, but when printing it show some square like when the unicode is not found. For instance try http://getbootstrap.com/components/. Unicode is well displayed in the browser, but when I print (In a .xps file or with a printer) it is not. On the first page (only the first page is required to highlight the bug), the "glyphicon-glass" is the first to fail.