Epson LX-810 User Manual page 25

A.ssembling the Printer
5. Hold the ribbon cartridge by its handle and push it firmly
down into position, making sure the plastic hooks fit in the
slots.
Note: Press lightly on both ends of the cartridge to make sure
the plastic hooks are properly seated.
6. Use a pointed object, such as a pencil, to guide the ribbon
between the print head and ribbon guide while you turn the
ribbon-tightening knob to help feed the ribbon into place.
Setting Up the Printer 1-11