Does the chart you are attemping to print have print controls as part of it's set up? Only a VERY few, just the newest, reports give the user any printer control.
In my case the last version of Win95 and now 98 prevent me from printing from the bottom paper supply tray on a HP5P. But this was at one time ok. The report writer is Win 3.x and was one of those items on the wish list for the next version. Now gone.