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Program Mode: After powering the unit on, press and hold for 2
seconds until the DATA LED turns red. Press and hold again for 6
seconds until the DATA and ERROR LEDs blink red. This mode
allows uploading font files or upgrading firmware files. See page 21
for further information.
NOTE: The printer may be configured for “auto off” operation. In
this mode, when the printer is operated under battery power, inactivity
for a period of a user-selected multiple of 10 minutes will cause the
printer to shut itself down to conserve battery power. By default, this
feature is enabled and set for 10 minutes. The printer may also be
configured for “Auto-on” operation where connecting it to an external
power source causes it to power on without using the Main Switch.
See page 11 for further information.
Indicator Lights
The three indicator lights—POWER, DATA, and ERROR— show
both normal operation and error conditions. Each light may appear as
green, red, or orange, and may either stay lit continuously or blink.
The meaning of the many possible indications of these lights is
explained in more detail in Chapter 5.
Some of the more common indications follow:
• POWER light is steady green: Power is on, external power.
• POWER light is red or orange: The printer is operating on battery
power. Color and blink/solid indicates approximate charge
remaining.
• POWER light is blinking green: Battery is charging.
• DATA light is steady green: Unprinted data is in the printer buffer or
a command has been received from the computer.
• DATA light is blinking green: Printer is receiving data.
• ERROR light is steady or blinking in any color: Except when
sending new flash code or fonts, an error has occurred.
Please refer to the table in Chapter 5 that contains all combinations of
indicator lights and their meanings.
Page 5