Lexmark MS310
‑ Slowly blinking
‑ Blinking
‑ On
If the printer control panel light sequence matches the light sequence in the preceding illustration, then press on the printer control panel, if necessary, to continue printing.
Understanding imaging unit yield on Lexmark's MS/MX 310, 410, 510, 61x, 71x, and 81x devices.
31.6x Error Code Reinstall Missing or Unresponsive Imaging Unit (IU)