Epson ActionPrinter 4000 User Manual page 169

Replacing the Ribbon
2. Open the paper tension unit cover.
3. To remove the ribbon cartridge, grip it by the black plastic tab
and lift the cartridge straight up and out of the printer.
WARNING: If the printer has just been used, the print
head may be hot. Let it cool before attempting to replace
the ribbon.
Maintenance 6-5