Epson B134101 - DM D210 - Vacuum Fluorescent Display Character Installation Manual page 21

Note:
The paper roll cover may not open if the position of the display is
inappropriate. Before securing the position of the display, make sure that
you can open the paper roll cover.
paper roll cover
8. Store any excess cable in the support and attach the DM-D210 to
fixing plate A.
9. Connect the power cable of the printer. To avoid disconnection,
hook the cable to the tabs on fixing plate B, as shown below.
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