The printer is a Hewlett Pakard Laserjet 4100 and the machine its connected to has Win2k service PACK 4 .EVERYDAY at around 2pm the printer starts printing whether Im using it or not.Its been doing this for about 3 weeks now.I end up having to unplut it or stop the process.Any suggestions on what option Im OVERLOOKING thats causing it to do this?Do you have some documentation (print, CD-ROM, PDF, HP's website, etc.) on that printer?  Have you thoroughly looked at the features in the printer software, accessing it from Windows Control Panel? 

I have a Canon BJC-3000 that I owned for several years before I discovered that I could set it to automatically power on when a print command is issued.  Prior to that, I always manually turned it on.

I DONT have documentation or the cd but I have been using google a lot.Im not really finding anything related to my situation BUT..........thank you for the help...I did what I should have done from the beginning.I downloaded the drivers...uninstalled it...reinstalled it and it SEEMS to be ok for now.OK, thanks for the feedback.  Glad to hear you resolved the problem.  Come back anytime.