Inside The Printer; Inside This Manual - Epson FX Series User Manual

Program debugging mode (hexadecimal dump of codes received
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from the computer)
Fast print speed-160 characters per second-for rapid processing
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of documents
2K print buffer for smooth operation
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Adjustable tractor unit for narrow forms
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Both friction- and tractor-feed capability
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Replaceable print head
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Easy-to-reach DIP switches to customize printer features.
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Epson reliability, quality, and support
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In short, the FX is loaded with features that will challenge your ability
to put them to work. This manual can help you use one or all of them.

Inside the Printer

The FX printers contain two kinds of internal memory: ROM (Read
Only Memory) and RAM (Random Access Memory). There are 12K
bytes (approximately 12,000 characters) of ROM. This unchangeable
memory contains all the logic required for the various print features as
well as the patterns for all the built-in character sets.
The FX also contains a RAM memory buffer that stores up to 2K
bytes of text and printer commands as they are received from the com-
puter. This frees your computer so that you can continue working
while the FX is printing. You can also use RAM another way; you can
define your own set of characters and then store them in RAM so that
you can print them at will.
It is always tempting (though not always wise) to start playing with
a new printer the instant it is out of the box. Because the FX is a sophis-
ticated piece of equipment, it is important that you understand what
the printer will do and how to operate it before you start printing.

Inside This Manual

This manual will guide you on a carefully planned tour of the vari-
ous features of the FX printers. In these pages, you can learn how to
use your computer to control the printer for a large variety of applica-
tions.
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