Epson 1000 Reference Manual page 90

In the INPUT submenu, you can display any of the options
listed below.
AUTO
STD
OPT
OPT appears only when you have installed the optional
lower paper cassette unit.
Note:
Although the main menu options are the same for all printer
emulations, some Level 1 submenu options are different in each
emulation. See the Appendix that describes the printer emulation
you are using for a description of the submenu options for that
emulation.
6. When you reach the option you want to select, press F to
set the option. SET disappears from the display and
the ) icon moves to the right of the display indicating that
the new option has been selected.
At the same time, 4 moves to the left of the main menu
option, indicating that you are back in the main menu.
Note:
If you want to return to the main menu at any time without
changing
7. Exit SelecType. To exit SelecType from any main menu or
submenu, press the EXIT button. The display shows the
READY message.
SelecType
4-6
STD
a setting, press 4 to exit the submenu.