Operator`s manual

66 A-Class
4.2.7 Diagnostics
Displayed Menu Item Details
HEX DUMP MODE ♦
Most commonly used for troubleshooting. Prints data and
instructions received from the host rather than interpreting them as
label formats; see Section 6.3.
ENABLE
Prints raw ASCII data received from the host rather than executing
the commands.
DISABLE
Executes and prints label formats (normal operating mode).
OPTIONS TESTING ♦
Allows or performs diagnostics of specific options within the
printer.
TEST CUTTER
Performs a functional test of the cutter.
PERFORM TEST
1 TIME
The test will cycle the selected number of times (1, 10, or 100; use
the  and  Keys) with the results displayed following each
attempt.
TEST RIBBON SAVER
Performs a functional test of the ribbon saver circuits and
mechanisms.
PERFORM TEST
1 TIME
The test will cycle the selected number of times (1, 10, or 100; use
the  and  Keys) with the results displayed following each
attempt.
TEST GPIO
Performs a functional test of the General Purpose Input Output
interface. See Appendix D.
MONITOR GPIO INPUT
SOP FEED PAUSE REPRT
1 1 1 1
Input values are displayed for the SOP (Start of Print), Feed, Pause,
and Reprint lines.
 Note: Unconnected lines may display a zero or one value.
TEST GPIO OUTPUT
EOP RL SR MO RO DRDY
0 0 1 1 1 1
Output logic values are reported, where:
EOP = End of Print;
RL = Ribbon Low;
SR = Service Required;
MO = Media Out;
RO = Ribbon Out; and,
DRDY = Data Ready.
(The  and  Keys toggle the output state, while the  Key
advances the cursor.) See Appendix D for the GPIO Port pin-outs.
LOOPBACK
Performs an internal test of the GPIO Port circuitry.
 Note: Before executing this test, remove any connection to the GPIO
Port.
PRINT SIGNAL INFO
Prints a label containing GPIO Port signal names, programmed
settings, and current states. See Appendix D for a sample of the
label.