SATO CL4NX Operator's Manual page 734

Error Message 1050 (Bluetooth Error)
When there is an error with the printer, the error message appears on the screen.
Check the cause and countermeasure, and then take appropriate action.
To clear the error:
Check the message that appeared on the screen.
Cause and Countermeasure
Cause
Bluetooth module is defective.
Countermeasure
Repair of the Bluetooth module is required. Contact your SATO technical support center.
Contact Information for When You Are in Trouble
734