User Guide
Page 12
... cover. 6. Turn off the printer, open the printer cover, and clean the thermal elements of the thermal head with a cotton swab moistened with your fingers or any hard object. Epson recommends cleaning the thermal head periodically (generally every 3 months) to assist you. There is a label near the cutter to maintain receipt print quality. 6 TM-T88IV User's Manual English 4. Cleaning...
... cover. 6. Turn off the printer, open the printer cover, and clean the thermal elements of the thermal head with a cotton swab moistened with your fingers or any hard object. Epson recommends cleaning the thermal head periodically (generally every 3 months) to assist you. There is a label near the cutter to maintain receipt print quality. 6 TM-T88IV User's Manual English 4. Cleaning...