Brother International HL-3400CN Service Manual - Page 261

Controller

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HL-3400CN SERVICE MANUAL CHAPTER 8 TROUBLESHOOTING This chapter contains troubleshooting information for both the Video Controller Mode and the Engine Controller Mode. If any problem occurs during the normal usage of the printer, which means the printer is being used in the Video Controller Mode, clear the problem by referring to the troubleshooting information in the following sections for the Video Controller Mode or the user's guide. However, if a problem occurs in the video controller itself, use the Engine Controller Mode information as it may be easier to understand the cause of the problem because the Engine Controller mode can separate the problem in the video controller from the printing operations. The error messages used in the Video Controller Mode basically contain the same ones that are used in the Engine Controller Mode. All error status messages are displayed in the Video Controller Mode other than when an error occurs in the video controller itself or in the communication between the video controller and the engine controller. NOTE: The operation of the controlpanel and the display on the LCD vary depending on the mode selected. 8-3

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HL-3400CN
SERVICE
MANUAL
CHAPTER
8
TROUBLESHOOTING
This
chapter
contains
troubleshooting
information
for
both
the
Video
Controller
Mode
and
the
Engine
Controller
Mode.
If
any
problem
occurs
during
the
normal
usage
of
the
printer,
which
means
the
printer
is
being
used
in
the
Video
Controller
Mode,
clear
the
problem
by
referring
to
the
troubleshooting
information
in
the
following
sections
for
the
Video
Controller
Mode
or
the
user's
guide.
However,
if
a
problem
occurs
in
the
video
controller
itself,
use
the
Engine
Controller
Mode
information
as
it
may
be
easier
to
understand
the
cause
of
the
problem
because
the
Engine
Controller
mode
can
separate
the
problem
in
the
video
controller
from
the
printing
operations.
The
error
messages
used
in
the
Video
Controller
Mode
basically
contain
the
same
ones
that
are
used
in
the
Engine
Controller
Mode.
All
error
status
messages
are
displayed
in
the
Video
Controller
Mode
other
than
when
an
error
occurs
in
the
video
controller
itself
or
in
the
communication
between
the
video
controller
and
the
engine
controller.
NOTE:
The
operation
of
the
control
panel
and
the
display
on
the
LCD
vary
depending
on
the
mode
selected.
8-3