Epson FX-2190 Reference Manual page 203

2. Remove the paper guide, then remove the tractor if it is
installed in the pull or rear push position. Reinstall the paper
tension unit if necessary.
3. Position the roll paper holder underneath the printer as
shown below. Fit the two positioning pegs on the bottom of
the printer into the two holes in the base plate.
Caution:
c
The roll paper holder is not fastened to the printer; only the
printer's weight and the two positioning pegs hold it in place.
If you pick up the printer, be careful not to drop the roll paper
holder.
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