Xante ScreenWriter Colour ScreenWriter User Manual page 317

b. Loosen the thumb screw on metal coupler 1 and angle the
coupler slightly until you can slide it into the opening just
below the printer's LFU connector; then rotate coupler 1
down until it is vertical and the coupler's hole aligns with
the hole on the printer (fig. 10.6).
Thumb Screw
Fig. 10.6 Mount the Metal Coupler
c. Tighten the thumb screw to hold the coupler in place
(10.6).
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Connector
Metal Coupler 1
Options 10-7