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Printer errorDevice Failure - It beeps.

If the printer generates two consecutive beeps continuously, replace paper. 

This error also occurs when you do not pull the paper out of the paper outlet slot when inserting a paper cartridge. 

Check that the cartridge is inserted correctly. If the printer generates three consecutive beeps continuously, there is a paper jam. 

Open the cover and arrange the paper neatly. 

To check the state when an error occurs, refer to the link below.

Device State Indication
Link : Checking LED indicators