Datamax Prodigy, Operator'S Manual

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Setup and Self Test
3.6 Monitoring Input After Self Test
After the self test is complete, the Printer goes into a mode that is very
useful in two major situations. The first situation involves checking
serial transmissions from the sending device to the Printer. The second
situation involves monitoring data that is to be interpreted as graphic
control statements.
Any character received will be printed. The Printer will print the data in
its buffer as soon as a full line of information has been received, or after
a pause of 1/4 of a second in received data is registered.
The complete set of ASCII characters can be printed by the Printer
including the characters that have values ranging from 0 to 31. These
characters will be represented by their control codes. An ASCII NUL
(DEC 00, HEX 00) character has a value of 0 and is represented by a
control“@” or “^@”. The ASCII SOH character (DEC 01, HEX 01) has
a value of 1 and is represented by a “^A”. The STX and ETX are “^B”
and “^C” respectively. This pattern continues through ASCII value 31,
the US character. Character values greater than 31 will print as the
actual ASCII character. See APPENDIX A for a table of ASCII
character values.
When you have finished with the self test, reset the Printer by turning
the main POWER switch off and on.