Brother International DCP1000 Service Manual - Page 106

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5.3.6 Operational Check of LCD • Function This function allows you to check whether the LCD on the control panel works normally. • Operating Procedure (1) Press the 1 and 2 keys in this order in the initial stage of the maintenance mode. The LCD shows the screen given at right. (2) For machines w/ fax: Press the Fax Start key. Each time you press the Fax Start key, the LCD cycles through the displays shown at right. For machines w/o fax: Press the Sort key. Each time you press the Sort key, the LCD cycles through the displays shown at right. 'V Fax Start key or Sort key E • • El MI MI❑MI•❑ r Fax Start key or Sort key Fax Start key or Sort key (3) Press the Stop key in any process of the above display cycle. The machine beeps for one second and returns to the initial stage of the maintenance mode. 5.3.7 Operational Check of Control Panel PCB • Function This function allows you to check the control panel PCB for normal operation. • Operating Procedure (1) Press the 1 and 3 keys in this order in the initial stage of the maintenance mode. The "00 " will appear on the LCD. (2) Press the keys and buttons in the order designated in the illustration shown below. The LCD shows the corresponding number in decimal notation each time a key or button is pressed. Check that the displayed number is correct by referring to the illustration below. If a key or button is pressed out of order, the equipment beeps and displays the "INVALID OPERATE" on the LCD. To return to the status ready to accept key & button entry for operational check, press the Stop key. (3) After the last number key or button is pressed, the equipment beeps and returns to the initial stage of the maintenance mode. To terminate this operation, press the Stop key. The equipment returns to the initial stage of the maintenance mode. 5-12

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5.3.6
Operational
Check
of
LCD
•
Function
This
function
allows
you
to
check
whether
the
LCD
on
the
control
panel
works
normally.
•
Operating
Procedure
(
1
)
Press
the
1
and
2
keys
in
this
order
in
the
initial
stage
of
the
maintenance
mode.
The
LCD
shows
the
screen
given
at
right.
(2)
For
machines
w/
fax:
Press
the
Fax
Start
key.
Each
time
you
press
the
Fax
Start
key,
the
LCD
cycles
through
the
displays
shown
at
right.
For
machines
w/o
fax:
Press
the
Sort
key.
Each
time
you
press
the
Sort
key,
the
LCD
cycles
through
the
displays
shown
at
right.
'V
key
key
key
Fax
Start
key
or
Sort
E
El
•
•
MI
MI❑MI
•❑
r
Fax
Start
key
or
Sort
Fax
Start
key
or
Sort
(3)
Press
the
Stop
key
in
any
process
of
the
above
display
cycle.
The
machine
beeps
for
one
second
and
returns
to
the
initial
stage
of
the
maintenance
mode.
5.3.7
Operational
Check
of
Control
Panel
PCB
•
Function
This
function
allows
you
to
check
the
control
panel
PCB
for
normal
operation.
•
Operating
Procedure
(
1
)
Press
the
1
and
3
keys
in
this
order
in
the
initial
stage
of
the
maintenance
mode.
The
"00
"
will
appear
on
the
LCD.
(2)
Press
the
keys
and
buttons
in
the
order
designated
in
the
illustration
shown
below.
The
LCD
shows
the
corresponding
number
in
decimal
notation
each
time
a
key
or
button
is
pressed.
Check
that
the
displayed
number
is
correct
by
referring
to
the
illustration
below.
If
a
key
or
button
is
pressed
out
of
order,
the
equipment
beeps
and
displays
the
"INVALID
OPERATE"
on
the
LCD.
To
return
to
the
status
ready
to
accept
key
&
button
entry
for
operational
check,
press
the
Stop
key.
After
the
last
number
key
or
button
is
pressed,
the
equipment
beeps
and
returns
to
the
initial
stage
of
the
maintenance
mode.
To
terminate
this
operation,
press
the
Stop
key.
The
equipment
returns
to
the
initial
stage
of
the
maintenance
mode.
(
3
)
5-12