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A470e Users Guide
Pertech® 2006
24
Trouble Shooting Other Issues
Fault Mode
The printer will enter a Fault Mode and will not operate when certain failure conditions are
encountered. Conrmation of this condition can be accomplished by the host on the DTR (pin 8) or
status with an RS-232 interface.
The color of the LEFT LED on the front panel of the
printer will change from Green to Red if a fault condition
is encountered. Depressing the paper feed button on
the printer cover will cause the printer to enter diagnostic
mode. This will cause the LED to ash a 3 bit code
to dene the specic reason the printer entered Fault
Mode. The error code is followed by a delay before
being repeated. The diagnostic code will toggle the DTR
line and ash the Red LED if the RS-232 interface is
selected.
Error code Diagnosed failure
● ● ▬ Short Short Long No motor sensor signal
● ▬ ● Short Long Short Ram test failure
● ▬ ▬ Short Long Long Firmware Error
▬ ● ● Long Short Short No margin sensor signal
▬ ▬ ▬ Long Long Long Head drive motor stalled
STATUS
SLIP
STATUS
SLIP
The printer will remain in FAULT Mode until the power is cycled or the printer is reset with the
<ESC> <NUL> command. (A470 Mode Only).
POWER
LOW
PAPER