Brother International HL-3400CN Service Manual - Page 195

CHAPTER

6

PERIODIC

MAINTENANCE

A

CAUTION

•

When

removing

the

fusing

unit,

take

care

to

keep

the

unit

level

so

that

no

oil

leakage

or

spillage

occurs.

•

When

shipping

the

printer,

remove

the

oil

bottle

and

the

fuser

cleaner

from

the

fusing

unit.

After

removing

the

oil

bottle,

be

sure

to

remove

the

oil

remaining

in

the

fusing

unit

with

the

supplied

syringe.

Failure

to

do

so

will

cause

severe

damage

to

the

printer.

Sequence

of

Replacement

(1)

Prepare

a

new

fusing

unit

before

starting

the

replacement

work.

(2)

Set

the

fusing

unit

pressure

release

levers

to

the

SET

position.

(Fig.6-16)

(3)

Install

the

oil

bottle

and

fuser

cleaner

to

the

new

fusing

unit.

Sequence

of

Assembling

(1)

Install

the

new

fusing

unit

onto

the

printer.

(Fig.

6-17)

i)

After

setting

the

fusing

unit

in

place,

lightly

press

down

the

unit

to

firmly

connect

to

the

connector

on

the

base.

ii)

Tighten

the

two

screws

to

secure

the

fusing

unit.

iii)

Close

the

top

cover.

Pressure

release

lever

.._--

-

-

--

2'

-1

0—

1

Fig.

6-17

O

Fusing

unit

Fig.

6-18

e

—

I

cs

a

Pressure

release

lever

/

L.:

,

/

A

PRECAUTION

When

replacing

the

fusing

unit,

take

time

and

great

care

to

complete

the

job

properly.

Application

of

strong

force

to

the

fusing

unit

may

result

in

the

failure

of

the

fusing

unit

and

other

parts.

(2)

Plug

the

power

cable

into

the

power

outlet

and

turn

on

the

printer.

(3)

Upon

completion

of

the

warming

-up

process;

Press

the

Reset

button

while

holding

down

the

Shift

button,

and

select

"RESET

PARTS

LIFE"

and

then

"FUSING

UNIT".

NOTE:

When

installing

the

new

fusing

unit

into

the

printer,

you

have

to

wait

approximately

for

30

minutes

after

the

unit

is

installed

to

allow

the

fusing

oil

to

circulate

in

the

unit.

6-24

Brother International HL-3400CN Service Manual - Page 195

Caution, Precaution

Page 195 highlights