Epson 1170 - Manual (Page 19)

Assembling the Printer
After choosing a good place for your printer, you install the ribbon
cartridge and paper guide.
Installing the ribbon cartridge
Before installing the ribbon cartridge, make sure that the printer is
not plugged into an electrical outlet.
1. Lift the printer cover straight up and off.
2. Grasp the tabs on each side of the paper-tension unit as shown
below. Press up firmly with your thumbs to lift the front of
the unit; then pull the paper-tension unit up and off of the
printer.
3. Slide the print head to the middle of the printer.
1-6 Setting Up the Printer