Lexmark MS310
‑ On
If the printer control panel light sequence matches the light sequence in the preceding illustration, then press twice quickly to see the supplemental light sequence.
‑ Slowly blinking
If the supplemental light sequence matches the light sequence in the preceding illustration, then try one or more of the following:
Note: The printer discards any data received through the parallel port.
Open a Web browser, and then type the printer IP address in the address field.
Notes:
Click Settings > Network/Ports > Parallel.
In the Parallel Buffer field, enter 2.
Click Submit.