Lexmark MS310 User Manual page 109

Troubleshooting
Cartridge low [88.xx]
‑ On
‑ 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
Cartridge nearly low [88.xy]
‑ Slowly blinking
on the printer control panel to continue printing.
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