Sharp MX-4100N Service Manual page 3

NOTE FOR SERVICING
MX-5001N
1. Precautions for servicing
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 an operational machine, keep hands away
from a moving chain, belt, gear, or any other moving part or
drive mechanism.
6) Do not leave the machine with the cabinet disassembled.
Do not allow any person other than a serviceman to access the
interior of 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 your eyes, wash it away with
water immediately, and consult a doctor if necessary.
Alternatively, follow all instructions in the MSDS guide.
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 of the PWB, use the speci-
fied battery only.
If a battery of different specification is used, it may be incom-
patible, causing breakdown or malfunction of the machine.
11) When carrying a unit with PWB or electronic parts installed it,
be sure to put it in an anti-static-electricity bag.
Otherwise. it may cause a breakdown or malfunction.
2. Warning for servicing
1) Be sure to only connect the power cord 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.
To protect the machine and the power unit from lightening,
grounding must be made.
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
Service Manual 5) Do not damage, break, or excessively twist the power cord.
Do not put heavy objects on the power cable. Do not bend it
forcibly or do not pull it extremely.
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 any type of container with liquids or metal pieces
inside the machine.
It may cause a fire or an electric shock.
8) Do not touch the power plug, insert the phone jack, operate the
machine, or perform servicing with wet or oily hands.
It may cause an electric shock.
3. Note for installing site
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 condensation inside the
machine, causing paper jam or copy dirt.
For operating and storing conditions, refer to the specifications
described later.
2) Place of high vibrations
It may cause a breakdown.
3) Poorly ventilated place
An electro-static type copier will produce ozone.
A low level of ozone is produced so as not to affect the human
body. However, continuous use of such a machine may pro-
duce an odor of ozone. Install the machine in a well ventilated
place, and ventilate occasionally.
MX-5001N NOTE FOR SERVICING - i