Epson QX-10 - Manual (Page 34)

Inserting the Option Card
Slide the option card down into the proper slot, fitting the front
end of the card into the corresponding notched guide on the front
wall. Once the connector pins are seated in the connector slot,
push a little more firmly to insert it fully.
If the option card didn’t go in smoothly pull it out and try sliding
it in again, being sure to keep it straight in the notched guide.
Removing an Access Slot
If the card has its own built-in outlet, remove the correspond-
ing pop-out access slot on the back of the main unit. To do this,
pull the panel of four access slots up to remove them from the
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