TROUBLESHOOTING PROCEDURES
16-2
MFC 4550/6550MC/7550MC
OP-US-5.0
Maintenance
Error
Messages
Occasionally,
you
may
have
a
problem
with
your
MFC
or
telephone
line.
If
this
happens,
your
MFC
usually
identifies
the
problem
and
displays
an
error
message.
Refer
to
the
following
list
when
you
see
an
error
message
on
the
display.
Error
messages
are
listed
below
in
alphabetical
order.
This
means
an
overflow
of
the
input
data
buffer.
Press
FF/Cont.
Data
that
overflowed
the
buffer
will
not
be
printed.
Check
the
communication
parameter
settings
such
as
handshake
protocol
on
both
your
computer
and
MFC.
If
the
error
occurs
again,
the
interface
hardware
may
be
damaged,
so
consult
with
your
dealer.
You
can
clear
a
quality
problem
by
replacing
the
drum
unit
with
a
new
one
if
the
display shows CHANGE DRUM. The drum
unit is at the end of its life.
If the display shows CHANGE TONER and at
the same time the Toner Empty LED on the
control panel flashes on and off, you can still
print. But the toner is depleted and it is telling
you that the toner will soon run out. Order a
new toner cartridge now.
The toner is used up and printing is not possible.
Replace the toner cartridge with a new one.
(See page 13-1~4)
The machine is out of paper or the paper is not
properly loaded in the multipurpose sheet
feeder. Refill the paper or remove the paper
and load it again.
Your Recording Paper Size setting may not be
set correctly for the recording paper you are
using (see page 6-7). When you see this error,
the reduction ratio automatically will be
changed to AUTO if you have used a fixed
reduction ratio (see page 6-8~9).
BUFFER ERROR
B
CHANGE DRUM
C
CHANGE TONER
CHANGE TONER
TONER EMPTY
CHECK PAPER SIZE
CHECK PAPER