Epson 1170 - Manual (Page 153)

subscript
Printing in which each character is printed at about two-thirds the
normal height in the lower part of the character space.
superscript
Printing in which each character is printed at about two-thirds the
normal height in the upper part of the character space.
tear off
A feature that automatically feeds the perforation of continuous
paper to the tear-off position and then feeds the paper back to the
loading position.
tear-off position
The position the printer feeds the paper to when you press the
TEAR OFF button or when the auto tear-off mode is on. This
position can be adjusted using micro-feed so that the paper’s
perforation meets the printer’s tear-off edge.
top of form
The position on the paper that the printer recognizes as the first
printable line. The printer feeds the paper to this position when it
loads the paper.
unidirectional printing
Printing in one direction only. Unidirectional printing is useful for
printing graphics because it allows more precise vertical alignment
than bidirectional printing.
user-defined characters
Characters that are defined and stored in the printer by the user.
Also known as download characters.
GL-6 Glossary