Epson TM-U375 User Manual page 45

3. Make sure that the ribbon is installed between the print head and the
ribbon mask without wrinkles or creases, as shown below.
Print head
Note:
Remove the ribbon from the printer when you store the
cassette
printer for a long time.
CAUTION:
Do not use aerosol sprayers containing flammable gas
inside or around this product. Doing so may cause fire.
Using the Printer 2-9