Lexmark MS310
‑ On
If the printer control panel light sequence matches the light sequence in the preceding illustration, then you may need to order a toner cartridge. If necessary, press on the printer control panel to continue printing.
"42" or "42.xx" Toner Cartridge Mismatch Error
Troubleshooting 111.xx Printhead Errors on the Lexmark MS/MX 31x, 41x, 51x, and 61x