Operating instructions

Status Messages through LEDs
13
GeBE E + F GmbH • www.oem-printer.com • GeBE Doc. No.: SMAN-E-689-V1.1 • Thermal Printer GPT-4378-FLASH-70-iBT
11 Status Messages through LEDs
LED "STATUS" (red/green) (7)
The STATUS LED will flash green slowly, when every-
thing is in order. It will flash red in regular intervals in
case of a failure. During fast charging, the STATUS
LED will flash green in regular intervals, while it will
permanently glow green during trickle charge.
LED "BT Communication" (blue) (4)
During the BT-Module hold a connection, the LED will
be blue. It will be slowly flashing blue during no
connection.
Status
Messages
Serial
Interface
Comments
Feedback through
the serial interface
on:off /flash frequency
fast: "S" app. 0.66Hz
medium: "M" app. 0.33Hz
slow: "L" app. 0.16Hz
Status LED
Faultless
operation:
Error end
Synchronous feed-
back
Battery charging:
"X"
all
characters
1:31 / M
green
also after hardware, software, and watchdog resets
Processing of synchronizing commands;
each transmitted character
Formatting
Fast charge
Trickle charge
Errors:
"l"
"L"
"L"
"f"
start
"F"
error
end
Paper end
Temp. low
Temp. high
Vp too high
"P"
"K"
"p"
"k"
"T"
"M"
"t"
"m"
off
LED flashes (1:3)
LED
permanently on
L := charge start l := end of charge
L := charge start l := end of charge
F := charge start f := end of charge
1:1 / S
red
After paper has been inserted, the printer waits for about 2s before printing in
order to allow for enough time for the mechanism to be closed.
print head temperature too low
print head temperature too high
Parity error
"?"
1:31 / M
green
Parity or framing error / no interruption of printing
Status Messages of the Printer through the
interfaces:
Besides the optical status messages displayed by the
three LEDs on the control panel of the printer, messages
are also transmitted through the BT interface. Most of the
time, they are sent as single ASCII characters that can be
analyzed by the host.
The following table shows all status messages.