Epson LQ-2500 GL-8, Self test, A pitch with 12 characters per inch. Also called elite, The part of the printer that moves continuous-feedpaper through the printer

ROM

Read Only Memory. The portion of the printers memory that is permanent. The printer uses the information in the ROM, but the information cannot be changed.

SLCT-IN

For most application programs, and most uses, the SLCT-IN setting should remain Valid. This means that the printer cannot be deselected or reselected by the DC1 or DC3 control codes (see Appendix A for further explanation). If its set to Invalid, the printer can be deselected or reselected by DC1 or DC3.

Self test

A method of checking the operation of the printer. When the self test is turned on, the printer prints the characters that are stored in its ROM.

Serial interface

An interface is the connection between the computer and the printer. There are two types: a serial interface transmits data one bit at a time. and a parallel interface transmits data one character or code at a time.

Subscript mode

Prints characters about twothirds of the normal height in the lower part of the character space.

Superscript mode

Prints characters about twothirds of the normal height in the upper part of the character space.

Top of form

A setting that enables the printer to begin printing in the proper place and to advance the paper correctly when it receives a form feed.

Tractor

The part of the printer that moves continuous-feed paper through the printer.

10 pitch

A pitch with 10 characters per inch. Also called pica. This is often the standard or default character width.

12 pitch

A pitch with 12 characters per inch. Also called elite.

GL-8 Glossary