Read Sharp MX-6240N / MX-7040N (serv.man17) Service Manual online
MX-7040N NOTE FOR SERVICING - i
MX-7040N
Service Manual
NOTE FOR SERVICING
1. Precautions for servicing
• 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.
when performing the communication test, etc.
It may cause an injury or an electric shock.
• There is a high temperature area inside the machine. Use
extreme care when servicing.
It may cause a burn.
It may cause a burn.
• There is a high voltage section inside the machine which may
cause an electric shock. Be careful when servicing.
• 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.
It may damage eyes by reflection of laser beams.
• When servicing with the machine operating, be careful not to
squeeze you hands by the chain, the belt, the gear, and other
driving sections.
driving sections.
• 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.
the machine. It may cause an electric shock, a burn, or an injury.
• When servicing, do not breathe toner, developer, and ink exces-
sively. 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.
If toner, developer, or ink enters your eyes, wash it away with
water immediately, and consult a doctor if necessary.
• The machine has got sharp edges inside. Be careful not to dam-
age fingers when servicing.
• Do not throw toner or a toner cartridge in a fire. Otherwise, toner
may ignite and burn you.
• When replacing a lithium battery on a PWB, only use the speci-
fied replacement battery.
If a battery of different specification is used, it may cause a
machine malfunction or breakdown.
If a battery of different specification is used, it may cause a
machine malfunction or breakdown.
• When carrying a unit with PWB or electronic parts installed to it,
be sure to put it in an anti-static-electricity bag.
It may otherwise cause a machine breakdown or malfunction.
It may otherwise cause a machine breakdown or malfunction.
2. Warning for servicing
• 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.
It may cause a fire or an electric shock.
Avoid complex wiring, which may lead to a fire or an electric
shock.
It may cause a fire or an electric shock.
• 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.
It may cause a fire or an electric shock.
• 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.
To protect the machine and the power unit from lightening,
grounding must be made.
• When connecting the grounding wire, never connect it to the fol-
lowing points.
Gas tube
Lightning conductor
A water pipe or a water faucet, which is not recognized as a
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
It may cause an explosion, a fire or an electric shock.
It may cause an explosion, a fire or an electric shock.
• Do not damage, break, or stress the power cord.
Do not put heavy objects on the power cable. Do not stress, forc-
ibly bend, or pull the power cord.
It may cause a fire or an electric shock.
ibly bend, or pull the power cord.
It may cause a fire or an electric shock.
• 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.
It may cause a fire or an electric shock.
• Do not place liquids or foreign metallic objects inside the
machine.
It may cause a fire or an electric shock.
It may cause a fire or an electric shock.
• Do not touch the power cord, insert the phone jack, operate the
machine, or perform service on the machine with wet or oily
hands.
It may cause an electric shock.
hands.
It may cause an electric shock.
3. Note for installing site
Do not install the machine at the following sites.
• Place of high temperature, high humidity, low temperature,
• Place of high temperature, high humidity, low temperature,
low humidity, place under an extreme change in temperature
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.
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.
• Place of extreme vibrations
It may cause a breakdown.
• Poorly ventilated place
An electrostatic type copier will produce ozone.
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 ozone smell. Install the machine in a
well ventilated place.
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 ozone smell. Install the machine in a
well ventilated place.
CAUTION
DOUBLE POLE/NEUTRAL FUSING
(200V series only)
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