HP 3900 series - Manual (Page 8)

1 USB port
Power button and light
Use the Power button to turn the printer on and off. It can take a few seconds for the
printer to turn on after you press the Power button.
1 Power button and light
The Power light flashes when the printer is processing.
Caution Always use the Power button to turn the printer on and off. Using a
power strip, surge protector, or a wall-mounted switch to turn the printer on
and off might cause printer failure.
Paper tray
The fold-out paper tray holds paper and other media to be printed. Unfold the paper
tray before printing.
Chapter 3
6 HP Deskjet 3900 series