Ensure you aren't trying to use an M2140 or M1120 resetter for the M2110.
Check your USB cable or try a different USB port. Ensure no other print jobs are in the queue.
Switch off the printer, wait 10 seconds, and turn it back on. The error lights should now be gone. Important Safety Warning: Physical Maintenance
Click on . Choose "M2110" from the Model Name list and click OK. Step 3: Entering Particular Adjustment Mode Click the Particular Adjustment Mode button.