Self Test And Hexadecimal Dump Functions - Epson LX-HOO Technical Manual

g. DRAFT/LINE FEED and AUTO LOAD Switch (non-locking push switch)
When this switch is pressed once in the OFF-LINE mode, the paper is advanced vertically one line,
and the paper advanced continuously while this switch is pressed.
When this switch is pressed in the ON-LINE mode, the Draft font is selected, and beeps once a
buzzer to inform the Draft font is selected.
Cut sheets are automatically loaded when the paper is placed at the sheet guide, printer is paper
out, OFF-LINE state and the this switch is pressed.

1.4.3 Self Test and Hexadecimal Dump Functions

The conditions of LX-800 may be checked via the self test functions. The self test checked:
Circuit
Printer mechanism
Printing quality
ROM (firmware) code number
The code number of ROM is printed on the first line of the self test.
To start the self test in either the Draft mode or NLQ mode,+urn the power on while pressing the
DRAFT/LINE FEED or NLQ/FORM FEED switch, respectively. In the NLQ self test mode, both Roman font
and Saris-serif font are printed every other line. When the DIP switch 1-5 set to on (NLQ mode), only
switch.
The conditions of data transmission between LX-800 and the host computer may be checkedvia
hexadecimal dump functions. To set the hexadecimal dump mode, turn the power while pressing
both LINE FEED and FORM FEED switches. Then the message "Data Dump Mode" is printed.
The printer prints 16 hexadecimal values, followed by the corresponding ASCII characters. If there is
no corresponding printable characters for a value (e.g. a control code), a period (.) is printed. One line
is printed for each set of 16 values received, and any remaining data (less than 16 values) can be printed
by pushing the ON/OFF LINE switch.
To cancel the hexadecimal dump mode, turn the power off by power switch.
1-15
the
the