SAMSUNG SF-331P, SF-330 Service Manual Precaution

Precautions

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Samsung Electronics

1. Precautions

The cautions in the below are items needed to keep in mind when maintaining and servicing.
Please read carefully and keep the contents in mind to prevent accidents while servicing and to prevent that the machine
gets damage.

1.1 Warning for safety.

(1) Request the service by qualified service person.

The service for this machine must be performed by a service person who took the additional education of this field.
It is dangerous if unqualified service person or user tries to fix the machine.

(2) Do not rebuild it discretionary.

Do not attach or change pats discretionary. Do not dissemble, fix, and rebuilt it. If do, printer will abnormally work and
electric shock or a fire can be occurred.

1.2 Caution for safety

Caution 1>> Precaution related noxious material

There is a possibility to get harm from noxious material if you ignore the below information.
(1) Do not touch the damaged LCD. This FAX has LCD in control panel. Noxious liquid to human

body exists in the LCD. If it is got into mouth, immediately see a doctor. If it is got into eyes or
on skin, immediately wash off over 15 minutes with flowing water and see a doctor.

Caution 2>>Precaution related electric shock or fire

It is possible to get electric shock or burn by fire if you don't fallow the instructions of the manual.
(1) Use exact voltage. Please do use an exact voltage and wall socket. If not, a fire or an electric

leakage can be caused.

(2) Use authorized power code. Do use the power code supplied with FAX. A fire can be occurred

when over current flows in the power code.

(3) Do not insert many codes in an outlet. If do, a fire can be occurred due to flow over current in

an outlet.

(4) Do not put water or extraneous matter in the FAX. Please do not put water, other liquid, pin,

clip, etc. It can cause a fire, electric shock, or malfunction. If it is happened, turn off the power
and remove the power plug from outlet immediately.

(5) Do not touch the power plug with wet hand. When servicing, do remove the power plug from

outlet. And do not insert or take off it with wet hand. Electric shock can be occurred.

(6) Caution when inserting or taking off the power plug. The power plug has to be inserted com-

pletely. If not, a fire can be caused due to poor contact.
When taking off the power plug, do grip the plug and take it off. If grip the line and pull over, it
could be damaged. Afire or electric shock could cause.

(7) Management of power code. Do not bend, twist, or bind it and place other materials on it. Also,

do not fix it with staples. If the power code gets damage, a fire or electric shock can be caused.
A damaged power code must be replaced immediately. Do not repair the damaged part and
reuse it. Arepaired part with plastic tape can be occurred a fire or electric shock. Do not spread
chemicals on the power code. Do not spread insecticide on the power code. A fire or electric
shock can be occurred due to thinner(weak) cover of the power code.

(8) Check whether the power outlet and the power plug are damaged, pressed, chopped, or blaz-

ing fire or not. When such inferiorities are found, repair it immediately. Do not make it pressed or
chopped when moving the machine.

Precautions

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Samsung Electronics

(9) Caution when thundering, and being flash of lightening. It causes a fire or electric shock. Take

the power plug off when thundering. Do not touch cable and device when thundering and being
flash of lightening.

(10) Do avoid the place where is moisture or has dust.

Do not install the printer in where have lots of dust or around humidifier. Afire can be occurred.
A plug part need to clean well with dried fabric to remove dust. If water drops are dripped on
the place covered with dust, a fire can be occurred.

(11) Avoid direct sunlight. Do not install the printer near to window where directly contacts to the

sunlight. If the machine contacts sunlight long time, the machine cannot work properly
because inner temperature of the machine is getting higher. Afire can be caused.

(12) Turn off the power and take off the plug when a smoke, strange smell, or sound from the

machine. If you keep using it, a fire can be occurred.

(13) Do not insert steel or metal piece inside/outside of the machine. Do not put steel or metal

piece into a ventilator. An electric shock could be happened.

Caution 3>>Precaution related handling the machine.

If you ignore this information, you could get harm and machine could be damaged.
(1) Do not install it on the different levels, or slanted floor.

Please confirm whether it is balanced or not after installation. If it is unbalanced, an accident
can be happened due to the machine fell over.

(2) Be careful not to insert a finger or hair in the rotating unit.

Be careful not to insert a finger of hair in the rotating unit (motor, fan, paper feeding part, etc)

while the machine is operating. Once it happens, you could harm.
(3) Do not put the ink cartridge into a fire. It could blow up.
(4) Do use copies if it is important document when using fax or complex machine. It is possible to

tear an important doc. or expensive picture when faxing and scanning.
(5) Do not place a pot contains water/chemical or small metals. If those are got into the inner side

of machine, a fire or electric shock can be occurred.
(6) Do not install it in where lots of moisture or dust exists or where raindrop reaches. A fire or elec-

tric shock can be caused.
(7) Do not place a candlelight, burning cigarette, and etc. on the machine. Do not install it near to

heater. A fire can be occurred.

Caution 4>>Precaution when assembly/disassembly

When replace parts, do it very carefully. Do memorize the location of each cable before replace
parts for reconnecting it afterwards. Do memorize.
Please perform the below before replace or disassembly the parts.

(1) Check the contents stored in the memory. All the information will be erased after replace main

board. The information needed to keep has to be written down.
(2) Before servicing or replacing electric parts, take off a plug.
(3) Take off printer cables and power code connected to printer.
(4) Do use formal parts and same standardized goods when replacing parts.Must check the prod-

uct name, part code, rated voltage, rated current, operating temperature, etc.
(5) Do not give an over-force when release or tighten up the plastic parts.
(6) Be careful not to drop the small parts such as screws in the printer.
(7) Be careful not to change the location of small parts such as screws when assembling and dis-

assembling.
(8) Do remove dust or foreign matters completely to prevent fire of tracking, short, or etc.

(9) After finished repair, check the assembling state whether it is same as before the repair or not.