Epson FX-80 Operation Manual page 54

(5) HEX
DUMP
Turn the Power switch ON while holding down both the LF and FF switches.
The printer then enters the Hex. Dump mode. If you execute programs or list
programs in this mode, all data sent from the host computer will be printed out in
Hex. codes.
For example;
When the following 4 data are sent from the host computer,
LPRINT CHR$(O) ;CHR$(27);
II
A" ;CHR$(24);
the data are output on the printer in Hex. codes as follows.
00 18 41 18
Printing in the Hex. Dump mode is performed only when the printer is in the
buffer-full state. The data remaining in the print buffer can be printed out when the
printer is set in OFF-LINE mode.
Hex. Dump mode cannot be cancelled during printing operation.
Note that in some programming languages such as BASIC, PASCAL, etc., there
. are a few codes that cannot be sent to the printer.
In such a case, you may use Hex. Dump to check if the correct codes are being sent
to the printer.
(6) Character sets
Character sets may by broadly divided into the following two types.
(1) Pre-defined character set
(2) User-definable character set (Download characters)
The printer is provided with ASCII codes (0 to 255) for both (1) and (2) above.
These character sets are selectable by software.
ROM Character
0
Generator
Standard
Alternate
Characters
Characters
255
Download
0
Character
Generator
Standard
Alternate
(RAM Character
Characters
Characters
Generator)
255
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