Intermec EasyCoder 7421 User Manual page 17

To operate the printer, you need to understand:
The Power light helps you determine when the
printer is on or off, or if there is a problem with the printer.
The Feed/Pause button allows you to feed
out media, pause the printer, and print a hardware configuration
label.
Use the Power light to monitor the status of the printer:
Green Off
On
Flashing
Red On
Flashing
Orange On
Flashing
If the printer overheats, the Power light
flashes red and the printer stops. Do not try to troubleshoot or
adjust the printer—just allow it enough time to cool down and it
will resume operation on its own.
and remains on, your printer is experiencing a media or system
fault. For help, see Chapter 4, "Troubleshooting."
Power off
Power on
Receiving data
System fault
Over-temperature
Media fault
Paused
If the Power light turns red or orange