Dell P1500 Personal Mono Laser Printer User Manual page 53

What this light sequence means:
The printer is ready to receive and process data.
The printer is in Power Saver mode.
What you can do:
Send a print job.
Press and release Continue to print the menu settings pages for a list
of current printer settings.
Press and hold Cancel to reset the printer.
NOTE: If you want to change the Power Saver setting, it can only be
set from the Local Printer Setup Utility (see
Setup Utility).
What this light sequence means:
The printer is ready to receive and process data. In addition, the toner in the
toner cartridge is getting low.
What you can do:
Send a print job.
Press and release Continue to print the menu settings page for a list
of current printer settings.
Remove the toner cartridge
the cartridge.
Replace the toner
Press and hold Cancel to reset the printer.
and gently shake it to extend the life of
cartridge.
Jam occurs as a
printed job exits the
tray
Using the Local Printer
Clearing a top
output bin jam