When printing the page containing charts from Internet Explorer charts are not printed.
Internet Explorer (IE) has Protected Mode found under Tools > Internet Options > Security. IE does not print charts when Protected Mode is on and prints them fine when it is off. Protected mode can be turned on or off separately for each security zone.
While we would not recommend to turn it off for Internet zone, it looks like by default Protected Mode is off for Trusted Sites zone so adding TeamDesk to the list of trusted sites looks like easiest workaround.