HP LaserJet 1320 - Manual (Page 101)

Light status State of the printer Action
Toner Low
The Go, Ready, and Attention
lights act independently of the
Toner Low state.
Insert a new print cartridge.
Toner Missing
The print cartridge has been
removed from the printer.
Reinsert the print cartridge in
the printer.
Wireless Connection
Established
The Go, Ready, Attention, and
Toner lights act independently
of the Wireless light.
No action is necessary.
Control panel light message (continued)
ENWW Status light patterns 91