HP LaserJet 1100 All-in-One Printer series - Manual (Page 14)

4 Chapter 1 Getting to know the printer EN
Printer control panel
The printer control panel is comprised of two lights and one lighted
button. These lights produce patterns that identify the status of your
printer.
● Go button and light: Press and release to print a self-test page
or when in manual-feed mode, or press and hold for 5 seconds to
reset the printer.
● Ready light: Indicates the printer is ready to print.
● Attention light: Indicates printer initialization, reset, and errors.
Note See “Printer light patterns” for functional descriptions of all the light
patterns.
Attention light
Go button and light
Ready light