Brother International FAX-170 Service Manual - Page 142

Messages, Probable, Cause, DOCUMENT

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Messages on the LCD DOCUMENT JAM CUTTER JAM CLEAN UP SCANNER SCANNER ERROR PRINTER FAULT MACHINE ERROR XX Probable Cause ■ Document loading error (1) The document rear sensor detects no leading edge of a document within 10 seconds from the start of document loading operation. (The document rear sensor stays OFF even after the document has been fed when the document front sensor was ON.) (2) The loaded document is too short. (Since the document is shorter than the distance between the document front and rear sensors, the document front sensor is turned OFF before the document rear sensor is turned ON.) The upper rotary blade of the automatic cutter failed to return to the home position within the specified time after cutting the recording paper. In the scanning compensation data list printed by the maintenance-mode function No. 05, less than fifty percent of the white level data is faulty. In the scanning compensation data list printed by the maintenance-mode function No. 05, fifty percent or more of the white level data is faulty. The thermistor in the recording head caused a heat error. "XX" indicates an error code. Refer to Section [ 2 ] on the next page. If only an alarm beep is heard without any message on the LCD when the equipment is powered up, the ROM or RAM will be defective.

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Messages
on
the
LCD
Probable
Cause
DOCUMENT
JAM
■
Document
loading
error
(1)
The
document
rear
sensor
detects
no
leading
edge
of
a
document
within
10
seconds
from
the
start
of
document
loading
operation.
(The
document
rear
sensor
stays
OFF
even
after
the
document
has
been
fed
when
the
document
front
sensor
was
ON.)
(2)
The
loaded
document
is
too
short.
(Since
the
document
is
shorter
than
the
distance
between
the
document
front
and
rear
sensors,
the
document
front
sensor
is
turned
OFF
before
the
document
rear
sensor
is
turned
ON.)
CUTTER
JAM
The
upper
rotary
blade
of
the
automatic
cutter
failed
to
return
to
the
home
position
within
the
specified
time
after
cutting
the
recording
paper.
CLEAN
UP
SCANNER
In
the
scanning
compensation
data
list
printed
by
the
mainte-
nance
-mode
function
No.
05,
less
than
fifty
percent
of
the
white
level
data
is
faulty.
SCANNER
ERROR
In
the
scanning
compensation
data
list
printed
by
the
mainte-
nance
-mode
function
No.
05,
fifty
percent
or
more
of
the
white
level
data
is
faulty.
PRINTER
FAULT
The
thermistor
in
the
recording
head
caused
a
heat
error.
MACHINE
ERROR
XX
"XX"
indicates
an
error
code.
Refer
to
Section
[
2
]
on
the
next
page.
If
only
an
alarm
beep
is
heard
without
any
message
on
the
LCD
when
the
equipment
is
pow-
ered
up,
the
ROM
or
RAM
will
be
defective.