No. JavaScript was designed so that malicious JavaScript programmers would have very little power to make their victims miserable. Denying JavaScript access to many of the client's resources, including the printer, was one precaution that was necessary to achieve this goal.
Charlton Rose
10/19/96
Editor's note: At the time of writing, this article was accurate. Since that time, however, new versions of Netscape have been released that offer support for printing from JavaScript. Further information will be provided at a later time.