Epson 1170 User Manual page 21

Assembling the Printer
6.
Slide the print head from side to side to make sure it moves
smoothly. Also check that the ribbon is not twisted or creased.
7. Replace the paper-tension unit by placing it on the printer's
mounting pegs; then lowering it into place. Press down both
ends of the paper-tension unit firmly until you feel it snap
click into place.
8.
Replace the printer cover by first inserting the front tabs into
the slots on the printer, then lowering it into place.
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Setting Up the Printer