Lexmark E220 User Reference Manual page 59

Understanding the operator panel lights
What this light sequence means:
The print cartridge you are using was not designed for
your printer.
What you can do:
Install a print cartridge made for your printer (see
Ordering supplies).
What this light sequence means:
The printer is in the Ready mode and Hex Trace is
active.
What you can do:
Advanced users can use Hex Trace to help
troubleshoot printing problems. After resolving the
problem, turn off the printer to exit Hex Trace.
Understanding the operator panel lights
59
Ready/Data
Toner Low
Load Paper
Paper Jam
Error
Press Continue
Continue Cancel
Ready/Data
Toner Low
Load Paper
Paper Jam
Error
Press Continue
Continue Cancel