HP Laserjet Printer Model 5L

I just got a used printer, HP Laserjet Model 5L and I was wondering if there is a manual reset button on this printer? Also, is there a way to turn the printer on and off?

Printer seems to powerup automatically at bootup and shut down automatically if no activity after several minutes. The only button I could find on the printer seems to print a test page and you have to unplug and replug the computer to stop the test page in cue.