Brother International HL-3400CN Service Manual - Page 317

HL-3400CN

SERVICE

MANUAL

1-21

Insufficient

Gloss

Phenomenon

Gloss

of

the

print

is

not

sufficient

as

shown

in

print

sample

(21)

of

Page

8-46.

Main

Causes

(1)

The

fuser

cleaner

is

stained.

(2)

The

fuser

roller

is

deteriorated.

Countermeasures

(1)

Replace

the

fuser

cleaner

with

a

new

one.

(See

Section

4.2

of

Chapter

6.)

(2)

Replace

the

fusing

unit

with

a

new

one.

(See

Section

4.2

of

Chapter

6.)

NOTE:

When

replacing

the

fusing

unit,

wait

approximately

for

30

minutes

after

the

new

unit

is

installed

to

allow

the

fusing

oil

to

circulate

in

the

new

fusing

unit.

1-22

Back

Stain

Phenomenon

Back

side

of

the

print

paper

is

stained

as

shown

in

print

sample

(22)

of

Page

8-46.

Main

Causes

Fusing

unit:

(1)

The

cleaning

pad

of

the

fuser

cleaner

is

stained.

(2)

Silicone

oil

in

the

oil

bottle

is

short.

(3)

The

fuser

roller

and

back-up

roller

are

dirty.

Countermeasures

(1)

Replace

the

fuser

cleaner

with

a

new

one.

(See

Section

4.2

of

Chapter

6.)

(2)

Clean

the

fuser

roller

and

back-up

roller.

(3)

Replace

the

fusing

unit

with

a

new

one.

(See

Section

4.2

of

Chapter

6.)

8-59

Brother International HL-3400CN Service Manual - Page 317

sufficient

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