Brother International FAX-170 Service Manual - Page 136

Sensor, Operational, Check

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3.7 Sensor Operational Check ■ Function This function allows you to check that the six sensors (document front sensor, document rear sensor, cover sensor, PE sensor, cutter HP sensor and hook switch sensor*) operate cor- rectly. On those versions equipped with a Binatone handset, the hook switch sensor serves no function.) In those versions equipped with a non-Binatone handset, the LCD shows the "FRE RC PE CHK" when - the document front and rear sensors detect no paper (FRE), - the recording paper cover is closed (RC), - the PE sensor detects paper loaded (PE), and - the cutter HP sensor detects that the cutter is placed in the home position and the hook switch sensor detects the on-hook state (CHK). In those versions equipped with a Binatone handset, the LCD shows the "FRE RC PE CH" when - the document front and rear sensors detect no paper (FRE), - the recording paper cover is closed (RC), - the PE sensor detects paper loaded (PE), and - the cutter HP sensor detects that the cutter is placed in the home position (CH). ■ Operating Procedure (1) Press the 3 and 2 keys in this order in the initial maintenance mode. In those versions equipped with a non-Binatone handset, the LCD should show "FRE RC PE CHK" if the detecting conditions of the six sensors are as defined above. In those versions equipped with a Binatone handset, the LCD should show "FRE RC PE CH" if the detecting conditions of the five sensors are as defined above. (2) Change the detecting conditions and check that the indication on the LCD changes as follows: - Insert paper through the document front sensor, and the "F" of the FRE disappears. - Insert paper through the document rear sensor, and the "E" of the FRE disappears. - Open the control panel, and the "RC" disappears. - Remove the recording paper, and the "PE" disappears. - Shift the upper blade of the automatic cutter out of its home position, and the "C" of the CHK (CH) disappears. - Lift up the handset, and the "K" of the CHK disappears. (Only on those versions with a non-Binatone handset) (3) To stop this operation and return the equipment to the initial maintenance mode, press the Stop key.

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3.7
Sensor
Operational
Check
■
Function
This
function
allows
you
to
check
that
the
six
sensors
(document
front
sensor,
document
rear
sensor,
cover
sensor,
PE
sensor,
cutter
HP
sensor
and
hook
switch
sensor*)
operate
cor-
rectly.
On
those
versions
equipped
with
a
Binatone
handset,
the
hook
switch
sensor
serves
no
function.)
In
those
versions
equipped
with
a
non-Binatone
handset,
the
LCD
shows
the
"FRE
RC
PE
CHK"
when
-
the
document
front
and
rear
sensors
detect
no
paper
(FRE),
-
the
recording
paper
cover
is
closed
(RC),
-
the
PE
sensor
detects
paper
loaded
(PE),
and
-
the
cutter
HP
sensor
detects
that
the
cutter
is
placed
in
the
home
position
and
the
hook
switch
sensor
detects
the
on
-hook
state
(CHK).
In
those
versions
equipped
with
a
Binatone
handset,
the
LCD
shows
the
"FRE
RC
PE
CH"
when
-
the
document
front
and
rear
sensors
detect
no
paper
(FRE),
-
the
recording
paper
cover
is
closed
(RC),
-
the
PE
sensor
detects
paper
loaded
(PE),
and
-
the
cutter
HP
sensor
detects
that
the
cutter
is
placed
in
the
home
position
(CH).
■
Operating
Procedure
(1)
Press
the
3
and
2
keys
in
this
order
in
the
initial
maintenance
mode.
In
those
versions
equipped
with
a
non-Binatone
handset,
the
LCD
should
show
"FRE
RC
PE
CHK"
if
the
detecting
conditions
of
the
six
sensors
are
as
defined
above.
In
those
versions
equipped
with
a
Binatone
handset,
the
LCD
should
show
"FRE
RC
PE
CH"
if
the
detecting
conditions
of
the
five
sensors
are
as
defined
above.
(2)
Change
the
detecting
conditions
and
check
that
the
indication
on
the
LCD
changes
as
follows:
-
Insert
paper
through
the
document
front
sensor,
and
the
"F"
of
the
FRE
disappears.
-
Insert
paper
through
the
document
rear
sensor,
and
the
"E"
of
the
FRE
disappears.
-
Open
the
control
panel,
and
the
"RC"
disappears.
-
Remove
the
recording
paper,
and
the
"PE"
disappears.
-
Shift
the
upper
blade
of
the
automatic
cutter
out
of
its
home
position,
and
the
"C"
of
the
CHK
(CH)
disappears.
-
Lift
up
the
handset,
and
the
"K"
of
the
CHK
disappears.
(Only
on
those
versions
with
a
non-Binatone
handset)
(
3
)
To
stop
this
operation
and
return
the
equipment
to
the
initial
maintenance
mode,
press
the
Stop
key.