Epson LQ-510 User Manual page 21

Assembling the Printer
CAUTION: Never move the print head while the printer is
turned on because this can damage the printer. Also, if
you have been using the printer, the print head may be
hot; let it cool for a few minutes before touching it.
2. Turn the ribbon-tightening knob in the direction of the arrow.
This removes slack in the ribbon and makes it easier to install.
3. Open the paper tension unit cover.
Setting Up the Printer
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