1
Introduction
Printer
lights
6
1.4
Printer
lights
There
are
two
LED
lights
that
show
the
status
of
your
printer.
1.4.1
Status
lights
Status
lights
help
you
check
printer’s
condition.
The
following
tables
show
the
blinking
speed
of
status
lights
and
the
conditions
they
indicate.
Symbol
Blinking
Speed
Blinking
Interval
Fast
0.5
Second
Medium
1
Second
Slow
2
Seconds
LED
1
LED
2
Description
Off
Off
The
module
is
opened
when
the
printer
is
turned
on.
Green
Off
In
the
online
mode.
Green
Off
The
printer
is
transmitting
data.
Green
Off
In
a
pause
state.
Green
Green
The
printer
is
writing
data
to
the
flash
or
USB
memory.
Green
Green
The
USB
memory
is
being
initialized.
The
process
takes
about
15
seconds.
Orange
Green
Paper
jam.
Orange
Red
The
media
is
out
when
the
data
is
sent
to
the
printer.
Orange
Red
Paper
end.
Red
Green
Communication
error
(RS
‐
232C).
Red
Green
Cutter
error
(with
optional
cutter).
Red
Green
Flash
ROM
on
the
CPU
board
error
or
USB
memory
error.
An
erase
error
occurred
when
formatting
the
USB
memory.
Unable
to
save
files
due
to
insufficient
USB
memory.
Red
Green
Command
error.
Red
Orange
Head
high
temperature
error.
Red
Orange
The
printhead
is
broken.
Red
Red
Cover
(Thermal
Head)
open
error.
Red
Red
The
RTC
battery
is
low.
(If
the
printer
has
a
built
‐
in
RTC)
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