Sharp MX-M904 / MX-M1204 (serv.man9) Service Manual ▷ View online
MX-M1204 MX-M904/M1054/M1204 (MAIN UNIT) 2 – 1
MX-M1204
Service Manual
[2] MX-M904/M1054/M1204 (MAIN UNIT)
1. NOTE FOR SERVICING
This Service Manual uses some symbols to assure safe operation.
Please understand the meanings of photographs before servicing.
Please understand the meanings of photographs before servicing.
A. 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.
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.
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.
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.
material such as a screwdriver in the laser beam path.
It may damage the eyes by reflection of laser beams.
5)
When servicing the machine while it is operating, be careful
when working around chains, belts, gears and drive sections.
when working around chains, belts, gears and drive sections.
6)
Do not leave the machine with the cabinet disassembled.
Do not allow any person other than a serviceman access to the
inside of the machine. It may cause an electric shock, a burn,
or an injury.
inside of the machine. It may cause an electric shock, a burn,
or an injury.
7)
When servicing, do not breathe toner or developer or get toner
or developer in the eyes. If toner or developer contact the eyes,
wash eyes immediately and contact a doctor if necessary.
or developer in the eyes. If toner or developer contact the eyes,
wash eyes immediately and contact a doctor if necessary.
8)
The interior of the machine has sharp edges. Be careful when
servicing the machine, to avoid contact with these edges.
servicing the machine, to avoid contact with these edges.
9)
Do not throw toner or a toner cartridge in a fire. Toner is com-
bustible and may explode and burn you.
bustible and may explode and burn you.
10) When replacing the lithium battery on the PWB, only use the
specified battery.
If a battery of different specification is used, it may not be com-
patible and cause breakdown or malfunction of the machine.
patible and cause breakdown or malfunction of the machine.
11) When carrying a PWB, be sure to transport the PWB in an
anti-static bag.Failure to do so may cause malfunction or fail-
ure of the PWB.
ure of the PWB.
B. Warning for servicing
1)
Be sure to only connect the power cord to an outlet that meets
the specified voltage and current requirements. Avoid complex
wiring which may lead to a fire or an electric shock.
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.
2)
If there is any abnormality such as a smoke or an abnormal
smell, interrupt the job and disconnect the power cord.
smell, interrupt the job and disconnect the power cord.
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.
occurs without grounding, a fire or an electric shock may
result.
To protect the machine and the power unit from lightening,
proper grounding must be made.
proper grounding must be made.
4)
When connecting the grounding wire, never connect it to the
following points.
following points.
It may cause an explosion, a fire or an electric shock.
• Gas tube
• Lightning conductor
• A water pipe or a water faucet.
• Grounding wire for telephone line
5)
Do not damage, break, or stress the power cord.
Do not put heavy objects on the power cable. Do not forcibly
bend or pull the power cable.
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 any foreign liquid or metal piece (that may fall into
or spill) inside of the machine.
or spill) inside of the machine.
It may cause a fire or an electric shock.
8)
Do not touch the power plug, insert a telephone line jack or
network jack, operate the machine, or service the machine
with wet or oily hands.
network jack, operate the machine, or service the machine
with wet or oily hands.
It may cause an electric shock.
C. Note for installing site
Do not install the machine at the following sites.
1)
Places of high temperature, high humidity, low tempera-
ture, low humidity, places of extreme change in tempera-
ture and humidity.
ture, low humidity, places of extreme change in tempera-
ture and humidity.
Paper may get damp and form moisture inside the machine,
causing paper jam or poor copy quality.
causing paper jam or poor copy quality.
For operating and storing conditions, refer to the specifications
described later.
described later.
2)
Place of high vibrations
It may cause a breakdown.
WARNING: If this WARNING should be ignored, a serious
danger to life or a serious injury could result.
CAUTION: If this CAUTION should be ignored, an injury or
damage to property could result.
MX-M1204 MX-M904/M1054/M1204 (MAIN UNIT) 2 – 2
3)
Poorly ventilated area
An electro-static type copier will produce ozone.
The machine is designed to produce a low quantity of ozone
so as not to affect health. Continuous use of the machine may
produce an ozone smell. Install the machine in a well venti-
lated area.
When special paper such as gloss paper is used, unique smell
or gas may be generated depending on the kind of paper,
arrange and install an additional duct to exhaust smell or gas
from the discharge section of the machine to outside of the
room. (There is no setting for the exclusive-use duct.)
so as not to affect health. Continuous use of the machine may
produce an ozone smell. Install the machine in a well venti-
lated area.
When special paper such as gloss paper is used, unique smell
or gas may be generated depending on the kind of paper,
arrange and install an additional duct to exhaust smell or gas
from the discharge section of the machine to outside of the
room. (There is no setting for the exclusive-use duct.)
4)
Place of direct sunlight.
Plastic parts may become deformed, discolored, or undergo
qualitative change.
qualitative change.
It may cause a breakdown or copy quality problems.
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.
may undergo qualitative change due to organic gases such as
ammonium.
Installation of this machine near a diazo-type copier may result
in copy quality problems.
in copy quality problems.
6)
Place of excessive dust
When dusts enter the machine, it may cause a breakdown or
copy quality problems.
copy quality problems.
7)
Place near a wall
The machine requires intake and exhaust of air.
If intake and exhaust of air are not properly performed, copy
quality problems or a breakdown may be result.
quality problems or a breakdown may be result.
When installing the machine, make sure that the sides and
back of the machine are at least 11-13/16" (30 cm) away from
any walls.
back of the machine are at least 11-13/16" (30 cm) away from
any walls.
11-13/16"
(30 cm)
(30 cm)
11-13/16"
(30 cm)
(30 cm)
11-13/16"
(30 cm)
(30 cm)
MX-M1204 MX-M904/M1054/M1204 (MAIN UNIT) 2 – 3
2. Transit and delivery
A. Implements, facility, and manpower
A forklift is recommended for removing the machine from the ship-
ping carton.
ping carton.
If no forklift is available, Be sure to use the skid slope (DKIT-
0367FCZZ). Removing the machine by hand requires four or more
persons as the machine is heavy. Use care and safety precautions
when removing the machine from the shipping carton.
0367FCZZ). Removing the machine by hand requires four or more
persons as the machine is heavy. Use care and safety precautions
when removing the machine from the shipping carton.
Transit of the machine must be made in a protected and secure
condition to the place of install.
condition to the place of install.
Since the hard disk drive is built in the machine, refrain from vibra-
tions or shocks to the machine when in transit.
tions or shocks to the machine when in transit.
B. Delivery
Remove the packing materials prior to installation in the office envi-
ronment.
When delivering the machine, be sure to keep the separation pawl
fixing material attached. (If the machine is delivered without the fix-
ing material, the drum may be scratched.)
ronment.
When delivering the machine, be sure to keep the separation pawl
fixing material attached. (If the machine is delivered without the fix-
ing material, the drum may be scratched.)
NOTE: For USA / CANADA
If the fusing performance is insufficient in a special environment
such as low temperature and low humidity, an environment that
heavy paper is mainly used and so on when 208V power supply is
used, please replace with 208V lamp (RLMPU0764FCPZ).
such as low temperature and low humidity, an environment that
heavy paper is mainly used and so on when 208V power supply is
used, please replace with 208V lamp (RLMPU0764FCPZ).
(Measurement method)
Measure the voltage between L and N of the figure above using a
digital multi meter.
digital multi meter.
3. Unpacking
A. Pulling out the main unit
1)
Remove the top case, the top cushion, the packing case, and
the box containing the operation panel, the operation panel
arm and parts for assembly.
the box containing the operation panel, the operation panel
arm and parts for assembly.
2)
Cut the four corners of the bottom case.
No
Content
Method
1
Implements, facility,
and manpower
and manpower
Use a forklift. (If no forklift is available,
ensure manpower of four persons or more,
and use the skid slope (DKIT-0367FCZZ)).
ensure manpower of four persons or more,
and use the skid slope (DKIT-0367FCZZ)).
2
Delivery
Transit must be made in safely packed and
protected environment.
protected environment.
L
N
GND
V
Voltage reference points for wall outlet.
MX-M1204 MX-M904/M1054/M1204 (MAIN UNIT) 2 – 4
3)
Gently lift the main unit high enough to remove the bottom pad
“L”.
“L”.
4)
Next, gently lift the main unit high enough to remove the bot-
tom pad “R”.
tom pad “R”.
5)
Remove the vinyl bag from the main unit.
6)
Remove the slope.
* Slope : Order from parts.
7)
Insert the ramps in the cut outs in the skid.
8)
Cut the part of the bottom case that overlaps with slope.
9)
Carefully roll the main unit down the ramps in the direction of
the arrow.
the arrow.
Part name
Part code
Skid slope
DKiT– 0367FCZZ
Click on the first or last page to see other MX-M904 / MX-M1204 (serv.man9) service manuals if exist.