Lexmark MS310d Quick Refence Manual page 6

Light sequence
The printer control panel lights blink
one at a time from left to right
repeatedly.
Message
Replace unsupported
imaging unit
Toner cartridge, imaging
unit mismatch
Canceling print job
Flushing buffer
Resolution reduced
Non-Lexmark toner
cartridge
Non-Lexmark imaging
unit
Printer had to restart
Toner cartridge very low
Imaging unit very low
Toner cartridge nearly
low
Imaging unit nearly low
Service error
Load paper
Remove paper from
standard bin
Toner cartridge low
Imaging unit low
Ready
Waiting
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