Samsung SF-531P, SF-530 Precautions

1-1

Samsung Electronics

1. Precautions

Please read the following carefully to prevent any accidents and not to damage the unit during service.

1-1 Safety Precautions

1-2 Precautions on Disassembly and Reassembly

1. Safety Precautions

There are some electric or machinery parts with safety
related property. If the parts replaced are different from
the original, the safety may not function. Even if the part
could allow higher voltage than that of the part used, do
not replace it and use a regular product clarified in spec­ifications.

2. Be careful not to leave a switch, a cover or a safety device
out when reinstalling or assembling the product after
repair.

3. Replacing Precautions

Do not change or add parts as you like. You cannot ben­efit from such a remodeled product at your will during the
term of guarantee.

4. You must replace overheated or damaged parts or cords
with regular products. Please solve the problem causing
any damage or overheating and troubles beforehand.

Especially mind the safety on the part with this
mark.

You must use regular parts described in specifica­tions for the parts inflammable and where the cur­rent can be flown. Otherwise any hazard such as
an electric shock or a fire could occur.

LASER STATEMENT (LASERTURVALLISUUS)

WARNING : NEVER OPERATE AND SERVICE THE PRINTER

WITH THE PROTECTIVE COVER REMOVED
FROM LASER/SCANNER ASSEMBLY. THE
REFLECTIVE BEAM, ALTHOUGH INVISIBLE, CAN
DAMAGE YOUR EYES.

Class 1 laser product

Luokan 1 laserlaite
Klass 1 laser apparat

Allonpituus 770-795nm
Teho 0.3mW±0.03mW

CAUTION

VORSICHT

ATTENTION

ATTENZIONE

PRECAUCION

CAUTION : Avoid exposure to invisible laser radiation when the

development unit is not installed.

INVISIBLE LASER RADIATION WHEN
THIS COVER OPEN. DO NOT OPEN
THIS COVER.

UNSICHTBARE LASERSTRAHLUNG,
WENN ABDECKUNG GEOFFNET.
NIGHT DEM STRAHLAUSSETZEN.

REYONNEMENT LASER INVISIBLE EN CAS
D’OUVERTURE. EXPOSITION DANGERUSE AU
FAISCEAU.

RADIAZIONE LASER INVISIBLE IN CASO DI
APERTURA. EVITARE L’ESPOSIZONE LA FASCIO.

REDIACION LASER INVISIBLE CUANDO SE
ABRE. EVITAR EXPONERSE AL RAYO.

Very careful precautions should be taken when replacing
parts. Before replacing, please check cables because you
cannot put the cables that you removed for replacing parts
into the proper place if you would not make sure of where
they were connected and in which condition.

Please do the following before disassembling
for a repair or replacement of parts.

1. Pull out paper cassette, printer cartridge installed.
Especially careful not to be scratched by the surface of
developer or not to expose them to light.

2. Turn the power switch off.

3. Take out the power plug, printer cable from the printer.

4. Use only the same type of part as original when replacing
parts.

5. Do not force to open or fasten plastic material compo­nents.

6. Be careful that small parts such as screws should not get
in the printer.

7. When disassembling, assembling, also observe small
components are located in place.

8. If you uncover and turn the machine over to replace some
parts, toner or paper particles may contaminate the LSU
window. Protect the LSU window with clean paper.

Releasing Plastic Latches

Many of parts are held in
place with plastic latches.
The latches break easily :
release them carefully.
To remove such parts, press
the hook end of the latch
away from the part to which
it is latched.

Certain semiconductor devices can be easily damaged by
static electricity. Such components are commonly called
“Electrostatically Sensitive (ES) Devices”, or ESDs.
Examples of typical ESDs are: integrated circuits, some field
effect transistors, and semiconductor “chip” components.
The techniques outlined below should be followed to help
reduce the incidence of component damage caused by sta­tic electricity.

1. Immediately before handling a semiconductor compo­nent or semiconductor-equipped assembly, drain off any
electrostatic charge on your body by touching a known
earth ground. Alternatively, employ a commercially avail­able wrist strap device, which should be removed for your
personal safety reasons prior to applying power to the unit
under test.

2. After removing an electrical assembly equipped with
ESDs, place the assembly on a conductive surface, such
as aluminum or copper foil, or conductive foam, to pre­vent electrostatic charge buildup in the vicinity of the
assembly .

3. Use only a grounded tip soldering iron to solder or desol­der ESDs.

4. Use only an “anti-static” solder removal device. Some sol­der removal devices not classified as “anti-static” can
generate electrical charges sufficient to damage ESDs.

5. Do not use Freon-propelled chemicals. When sprayed,
these can generate electrical charges sufficient to dam­age ESDs.

6. Do not remove a replacement ESD from its protective
packaging until immediately before installing it. Most
replacement ESDs are packaged with all leads shorted
together by conductive foam, aluminum foil, or a compa­rable conductive material.

7. Immediately before removing the protective shorting
material from the leads of a replacement ESD, touch the
protective material to the chassis or circuit assembly into
which the device will be installed.

8. Maintain continuous electrical contact between the ESD
and the assembly into which it will be installed, until com­pletely plugged or soldered into the circuit.

9. Minimize bodily motions when handling unpackaged
replacement ESDs. Normal motions, such as the brush­ing together of clothing fabric and lifting one’s foot from a
carpeted floor, can generate static electricity sufficient to
damage an ESD.

1-3 ESD Precautions

Precautions

1-2

Samsung Electronics

CAUTION:

Be sure no power is applied to the chassis or cir­cuit, and observe all other safety precautions.