Epson ActionPrinter L-750 User Manual page 18

Remove the ribbon cartridge from its box and remove the plastic
2.
wrapper.
3. Turn the ribbon-tightening knob in the direction of the arrow.
This removes any excess slack in the ribbon and makes it easier
to install.
4.
Hold the ribbon cartridge by its handle and push it firmly down
into position, making sure the plastic hooks fit into the printer.
Press lightly on both sides of the cartridge to be sure the hooks
are properly inserted.
Assembling the Printer
Setting Up the Printer
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