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MX-3640N NOTE FOR SERVICING - i
MX-3640N
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.
It may cause an injury or an electric shock.
• There is a high temp erature area inside the machin e. 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 inse rt a r eflective
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 opera ting, be care ful not to
squeeze you hands by the ch ain, the be lt, the gea r, and other
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.
• When servicing, do not breathe toner, developer, and ink exces-
sively. Do not get them in the eyes.
If toner, developer, or ink enter s your eyes, wash it away with
If toner, developer, or ink enter s 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 ma y cause a
If a battery of different specification is used, it ma y 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 w iring, which may lead to a fire or an electric
Avoid complex w iring, which may lead to a fire or an electric
shock.
It may cause 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 abnor mal
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 fro m lightening,
To protect the machine and the power unit fro m 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 r ecognized as a
grounding object by the authorities.
Grounding wire for telephone line
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.
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 liqu ids 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, oper ate the
machine, or perform service on the machine with wet o r oily
hands.
It may cause an electric shock.
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,
low humidity, place under an extreme change in temperature
and humidity.
Paper may get damp and form condensation inside the machine,
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
For operating and storing conditions, refer to the specifications
described later.
•
Place of extreme vibrations
It may cause a breakdown.
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
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.
CAUTION
DOUBLE POLE/NEUTRAL FUSING
(200V series only)
MX-3640N NOTE FOR SERVICING - ii
•
Place of direct sunlight.
Plastic parts and ink may be defor med, discolored, or may
Plastic parts and ink may be defor med, discolored, or may
undergo qualitative change.
It may cause a breakdown or output quality problems.
It may cause a breakdown or output quality problems.
•
Place which is full of organic gases such as ammonium
The organic photo-conductor (OPC) drum used in the machine
The organic photo-conductor (OPC) drum used in the machine
may undergo qualitative change du e to or ganic gases such as
ammonium.
Installation of this mach ine near a diazo-type copier and blue
Installation of this mach ine near a diazo-type copier and blue
print machine may result in poor quality output.
•
Place of much dust
When dust or contaminants enters the machine, it may ca use a
When dust or contaminants enters the machine, it may ca use a
breakdown or poor quality output.
•
Place near a wall
The machine will require ventilation.
If ventilation is not proper, poor output or mach ine failure may
The machine will require ventilation.
If ventilation is not proper, poor output or mach ine failure may
result.
•
Unstable or irregular surface
If the machine is dropped or tips over, it may cause injury or
If the machine is dropped or tips over, it may cause injury or
machine malfunction.
Use an optional desk or an exclusive-use desk.
When using the optional desk, be sure to fix the adjuster and lock
Use an optional desk or an exclusive-use desk.
When using the optional desk, be sure to fix the adjuster and lock
the casters.
4. Note for handling PWB and electronic
parts
When handling the PWB and the electronic p arts, be sur e to
observe the following precautions in order to prevent against dam-
age by static electricity.
• When in transit or storing, put the parts in an anti-static bag or an
• When in transit or storing, put the parts in an anti-static bag or an
anti-static case and do not touch them with bare hands.
• When and after removing the parts from an anti-static bag (case),
use an earth band as shown below:
• Put an earth band to your arm, and connect it to the machine.
• Put an earth band to your arm, and connect it to the machine.
• When repairing or r eplacing an electr onic part, perform the
procedure on an anti-static mat.
11-13/16"
(30cm)
(30cm)
11-13/16"
(30cm)
(30cm)
17-23/32"
(45cm)
(45cm)
MX-3640N NOTE FOR SERVICING - iii
5.
Note for repairing/replacing the LSU
When repairing or replacing, be sure to observe the following
items.
items.
* When repairing or replacing the LSU, be sure to disconnect the
power plug from the power outlet.
* When repairing or replacing the LSU, follow the procedures
described in this Service Manual.
* When checking the operations after repairing the LSU, keep all
the parts including the cover installed and perform the operation
check.
check.
* Do not modify the LSU.
* When visually checking the inside of the machine for the opera-
tion check, be careful not to allow laser beams to enter the eyes.
If the above precaution is neglected or the LSU is modified, ones
safety may be at risk.
safety may be at risk.
6.
Note for handling the drum unit, the
transfer unit, the developing unit
transfer unit, the developing unit
When handling the OPC drum unit, the transfer unit, and the devel-
oping unit, strictly observe the following items.
oping unit, strictly observe the following items.
If these items are neglected, a trouble may be generated in the
copy and print image quality.
copy and print image quality.
Drum unit
* Avoid working at a place with strong lights.
* Do not expose the OPC drum to lights including interior lights for
a long time.
* When the OPC drum is removed from the machine, cover it with
light blocking material. (When using paper, use about 10 sheets
of paper to cover it.)
of paper to cover it.)
* Be careful not to attach fingerprints, oil, grease, or other foreign
material on the OPC drum surface.
Transfer unit
* Be careful not to leave fingerprints, oil, grease, or other foreign
material on the transfer roller, primary transfer belt, and the sec-
ondary transfer belt.
ondary transfer belt.
Developing unit
* Be careful not to leave fingerprints, oil, grease, or other foreign
material on the developing unit.
7.
Screw tightening torque
The screws used in this machine are largely classified into three
types.
types.
These types are classified according to the shape of the screw
grooves and use positions.
grooves and use positions.
The table below shows the types of the screws and the tightening
torques depending on the use position.
torques depending on the use position.
When tightening the screws for repair or maintenance, refer to the
table.
table.
However, for the other conditions of tightening screws than speci-
fied on this table, or under special circumstances, the details are
described on the separate page. Refer to the descriptions on such
an exception.
fied on this table, or under special circumstances, the details are
described on the separate page. Refer to the descriptions on such
an exception.
Especially for the screw fixing positions where there is an electrode
or a current flows, use enough care to tighten securely to avoid
loosening.
or a current flows, use enough care to tighten securely to avoid
loosening.
Screw kinds and tightening torques
Normal screws, set screws (including step screws)
Tapping screws (for iron)
Tapping screw (for plastic)
Screw
diameter
Material to be
fixed
Tightening
torque
(N
m)
Tightening
torque
(kgf
cm)
Tightening
torque
(lbft)
M2.6
Steel plate
0.8 - 1.0
8 - 10
0.6 - 0.7
M3
Steel plate
1.0 - 1.2
10 - 12
0.7 - 0.9
M4
Steel plate
1.6 - 1.8
16 - 18
1.2 - 1.3
Screw
diameter
Material to be
fixed
Tightening
torque
(N
m)
Tightening
torque
(kgf
cm)
Tightening
torque
(lbft)
M3
Steel plate
(Plate thickness
0.8mm or above)
1.0 - 1.2
10 - 12
0.7 - 0.9
M4
Steel plate
(Plate thickness
0.8mm or above)
1.6 - 1.8
16 - 18
1.2 - 1.3
M3
Steel plate
(Plate thickness
less than 0.8mm)
0.6 - 0.8
6 - 8
0.4 - 0.6
M4
Steel plate
(Plate thickness
less than 0.8mm)
1.2 - 1.4
12 - 14
0.9 - 1.0
Screw
diameter
Material to be
fixed
Tightening
torque
(N
m)
Tightening
torque
(kgf
cm)
Tightening
torque
(lbft)
M3
Plastic resin
0.6 - 0.8
6 - 8
0.4 - 0.6
M4
Plastic resin
1.0 - 1.2
10 - 12
0.7 - 0.9
Name in the manual
Model name
26cpm machine
MX-2640N/2640NR
31cpm machine
MX-3140N/3140NR/3140N A
36cpm machine
MX-3640N/3640NR
MX-3610N PRODUCT OUTLINE 1 – 1
MX-3610N
Service Manual
[1] PRODUCT OUTLINE
1. System diagram
MX-2640N series
MX-3140N
MX-3640N
MX-3140N
MX-3640N
DIGITAL FULL COLOR
MULTIFUNCTIONAL SYSTEM
MULTIFUNCTIONAL SYSTEM
MX-DE12
STAND/1x500 SHEET
PAPER DRAWER
PAPER DRAWER
MX-DE13
STAND/2x500 SHEET
PAPER DRAWER
PAPER DRAWER
MX-DE14
STAND/3x500 SHEET
PAPER DRAWER
PAPER DRAWER
MX-FN17
FINISHER
MX-FN10
FINISHER
MX-RB10 N
PAPER PASS UNIT
MX-LC11
LARGE CAPACITY TRAY
MX-PN11A/B/C/D
PUNCH MODULE
MX-PNX5A/B/C/D
PUNCH MODULE
MX-TU12
EXIT TRAY CABINET
MX-TR13 N
EXIT TRAY UNIT
MX-LT10
LONG PAPER FEEDING
TRAY
TRAY
MX-DE20
STAND/500&2000 SHEET
PAPER DRAWER
PAPER DRAWER
MX-PC12
MX-XB16
PLASMACLUSTER ION
GENERATOR
GENERATOR
MOUNTING KIT
MX-USX1
SHARPDESK 1 LICENSE
KIT
MX-USX5
SHARPDESK 5 LICENSE
KIT
MX-US10
SHARPDESK 10 LICENSE
KIT
MX-US50
SHARPDESK 50 LICENSE
KIT
MX-USA0
SHARPDESK 100 LICENSE
KIT
MX-UN01A
Sha r p OSA Net w o r k Scanner
T ool 1 License Kit
MX-UN10A
Sha r p OSA Net w o r k Scanner
T ool 10 License Kit
MX-UN05A
Sha r p OSA Net w o r k Scanner
T ool 5 License Kit
MX-UN50A
Sha r p OSA Net w o r k Scanner
T ool 50 License Kit
MX-UN1HA
Sha r p OSA Net w o r k Scanner
T ool 100 License Kit
MX-FWX1
INTERNET FAX
EXPANSION KIT
EXPANSION KIT
MX-AMX1
APPLICATION
INTEGRATION MODULE
INTEGRATION MODULE
MX-AMX2
APPLICATION
COMMUNICATION MODULE
COMMUNICATION MODULE
MX-AMX3
EXTERNAL ACCOUNT
MODULE
MODULE
MX-PUX1
XPS EXPANSION KIT
MX-PF10
BARCODE FONT KIT
AR-SU1
STAMP UNIT
MX-FX11
FACSIMILE EXPANSION
KIT
KIT
MX-FR41U
DATA SECURITY KIT
MX-EB11
ENHANCED COMPRESSION
KIT
KIT
MX-EB12 N
MIRRORING KIT
MX-AM10
WEB BROWSING EXPANSION
KIT
KIT
MX-KB11 N
KEYBOARD
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