MX-C300P, MX-C300PE, MX-C300PL. Service Manual (Revised May 2016). - Sharp Copying Equipment Service Manual (repair manual). Page 4

MX-C300P  NOTE FOR SERVICING - i

MX-C300P

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1) When servicing, disconnect the power plug, the printer cable,

the network cable, and the telephone line from the machine,
except when performing the communication test, etc.
It may cause an injury or an electric shock.

2) There is a high temperature area inside the machine. Use

extreme care when servicing.
It may cause a burn.

3) There is a high voltage section inside the machine which may

cause an electric shock. Be careful when servicing.

4) Do not disassemble the laser unit. Do not insert a reflective

material such as a screwdriver in the laser beam path.
It may damage eyes by reflection of laser beams.

5) When servicing with the machine operating, be careful not to

place your hands by belts, gears, chains, and other drive com-
ponents.

6) Do not leave the machine with the cabinet disassembled.

Do not allow any person other than a serviceman to touch
inside the machine. It may cause an electric shock, a burn, or
an injury.

7) When servicing, do not breathe toner, developer, and ink

excessively. Do not get them in the eyes.
If toner, developer, or ink enters you eyes, wash it away with
water immediately, and consult a doctor if necessary.

8) The machine has got sharp edges inside. Be careful not to

damage fingers when servicing.

9) Do not throw toner or a toner cartridge in a fire. Otherwise,

toner may explode and burn you.

10) When replacing the lithium battery on the PWB, use only the

specified battery.
If a battery of different specification is used, the battery may
cause malfunction or breakdown of the machine.

11) When transporting a PWB, be sure to place the PWB in an

anti-static bag.
It may cause a breakdown or malfunctions.

1) Be sure to connect the power cord only to a power outlet that

meets the specified voltage and current requirements.
Avoid complex wiring, which may lead to a fire or an electric
shock.

2) If there is any abnormality such as a smoke or an abnormal

smell, interrupt the job and disconnect the power plug.
It may cause a fire or an electric shock.

3) Be sure to connect the grounding wire. If an electric leakage

occurs without grounding, a fire or an electric shock may
result.
For proper machine functionality, the machine must be
grounded.

4) When connecting the grounding wire, never connect it to the

following points.
It may cause an explosion, a fire or an electric shock.
- Gas tube
- Lightning conductor
- A water pipe or a water faucet, which is not recognized as a

grounding object by the authorities.

- Grounding wire for telephone line

5)

Do not damage, break, or twist the power cord.
Do not put heavy objects on the power cable. Do not forcefully
bend or pull the power cable.
It may cause a fire or an electric shock.

6)

Keep the power cable away from a heat source.
Do not insert the power plug with dust on it into a power outlet.
It may cause a fire or an electric shock.

7)

Do not put a metallic object or a container with water in it inside
the machine.
It may cause a fire or an electric shock.

8)

With wet or oily hands, do not touch the power plug, do not
perform servicing, touch the power plug, insert a telephone
jack, or operate the machine with wet or oily hands.
It may cause an electric shock.

Do not install the machine at the following sites.
1)

Place of high temperature, high humidity, low tempera-
ture, low humidity, place under an extreme change in tem-
perature and humidity.
Paper may get damp and form moisture inside the machine,
causing paper jam or print dirt.
For operating condition, refer to the specifications described
later.

2)

Place of much vibration
It may cause a breakdown.

3)

Poorly ventilated place
An electro-static type copier will produce ozone inside it.
The quantity of ozone produced is designed to a low level so
as not to affect human bodies. However, continuous use of
such a machine may produce an odor of ozone. Install the
machine in a well ventilated place.

4)

Place of direct sunlight.
Plastic parts and toner may be deformed, discolored, or may
undergo qualitative change.
It may cause a breakdown or print quality issues.

5)

Place which is full of organic gases such as ammonium
The organic photoconductor (OPC) drum used in the machine
may undergo qualitative change due to organic gases such as
ammonium.
Installation of this machine near a diazo-type copier may result
in print quality issues.

6)

Place of much dust
When dusts enter the machine, it may cause a breakdown or
print quality issues.

7)

Place near a wall
Some machines require intake and exhaust of air.
If intake and exhaust of air are not properly performed, print
dirt or a breakdown may be a result.

CAUTION

DOUBLE POLE/NEUTRAL FUSING

(200V series only)