Epson TM-T88V-DT

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3
If you use the product with the optional customer display, remove the U-
shaped part from the connector cover. If you use the product without
the optional customer display, keep the U-shaped part attached.
4
Align the tabs on the upper side of the connector cover with the
notches on the main body, and push the front part of it to click onto the
printer cover.
5
Hold the lower part of the connector cover, align the tabs on the upper
side of it with the notches on the main body, and push the front part of
connector cover to attach it.
U-shaped part