Error Code 349 - Sigma DS1, DS2, DS3, DS4 Printhead disconnected. No printhead was detected. Power down the printer and contact service.
Error Code 350 - Sigma DS1, DS2, DS3, DS4 Remove print ribbon. Remove the print ribbon. 1. Open the printer and remove the ribbon cartridge. 2. Close the printer. 3. Press the user button to continue.