Brother International FAX 275 Service Manual - Page 127

3.8

Sensor

Operational

Check

■

Function

This

function

allows

you

to

check

that

the

six

sensors

(document

front

sensor,

document

rear

sensor,

cover

sensor,

paper

empty

(PE)

sensor,

cutter

home

position

(HP)

sensor,

and

hook

switch

sensor)

operate

correctly.

■

Operating

Procedure

(1)

Press

the

3

and

2

keys

in

this

order

in

the

initial

stage

of

the

maintenance

mode.

The

equipment

sounds

1100

Hz

and

400

Hz

tones

cyclically

through

the

following

volumes

for

testing

the

speaker.

1100

Hz

Low

—>

Medium

—>

High

OFF

L

400

Hz

High

<—

Medium

<—

Low

OFF

To

disable

the

speaker,

press

the

Function

key

(FAX255/FAX275/FAX355MC/FAX375MC)

or

Menu

key

(FAX-515/FAX-525DT/FAX-525MC/HOMEFAX3).

With

the

key,

you

may

toggle

the

speaker

on

and

off.

If

the

sensing

status

are

as

listed

below,

the

LCD

will

show

the

following:

FRE

RC

PE

CHK

Given

below

is

the

relationship

between

the

LCD

indication,

sensor

name

and

sensor

status.

LCD

Sensors

Sensing

status

FRE

Document

front

and

rear

sensors

No

document

detected.

RC

Cover

sensor

Recording

paper

cover

ASSY

closed.

PE

PE

sensor

Recording

paper

loaded.

CH

Cutter

HP

sensor

Cutter

placed

in

the

home

position.

K

Hook

switch

sensor

On

-hook

state.

(2)

Change

the

detecting

conditions

and

check

that

the

displayed

letters

disappear.

For

example,

insert

a

document

through

the

document

front

(or

rear)

sensor

and

check

that

the

"F"

(

or

"E")

of

the

FRE

disappears.

(3)

To

stop

this

operation,

press

the

Stop

key.

The

equipment

beeps

for

one

second

and

returns

to

the

initial

stage

of

the

maintenance

mode.

V

-

53

Brother International FAX 275 Service Manual - Page 127

correctly.

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